15 Best 750W PC Power Supplies, Compared
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Finding the best 750W PC power supplies requires matching electrical ratings and physical dimensions to your system requirements. This comparison examines 15 models strictly using specifications published on their product listings.
The Corsair RM750x Shift White 750W ATX Power Supply leads because its ATX 3.1 and PCIe 5.1 specifications provide modern power delivery alongside an accessible side-mounted connector panel. This guide helps you identify the proper form factor, 80 Plus efficiency level, and modular cabling setup for your desktop build.
Quick picks
The best fit for you
- You need ATX 3.1 support with side cabling Corsair RM750x Shift White 750W ATX Power Supply It features ATX 3.1 and PCIe 5.1 compatibility paired with a side-mounted modular connector panel.
- You build a compact small-form-factor desktop system SilverStone 750W Platinum SFX PSU Its compact SFX form factor measures 3.94 inches long and provides 80 Plus Platinum efficiency.
- You want maximum energy efficiency for your build be quiet! Dark Power 13 750W Titanium PSU It carries an 80 Plus Titanium efficiency rating alongside native ATX 3.0 power delivery.
- You prefer an entry-level semi-modular power supply ARESGAME 750W Semi-Modular Bronze ATX Power Supply It provides 750W output with semi-modular cabling and an 80 Plus Bronze efficiency rating.
Our 15 picks
Corsair RM750x Shift White 750W ATX Power Supply
Best for: modern ATX 3.1 builds needing side cabling
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- Fan Size
- 140mm
View on Amazon: Corsair RM750x Shift White 750W ATX Power Supply
The Corsair RM750x Shift is a 750W fully modular ATX power supply featuring side-mounted cable connections. It complies with Intel ATX 3.1 and PCIe 5.1 standards to handle transient power spikes with modern graphics hardware. You get an 80 Plus Gold efficiency rating and a 140mm fluid dynamic bearing fan. This unit suits you if you want easier cable routing in compatible cases.
Pros
- Certified Intel ATX 3.1 and PCIe 5.1 compliant
- Side-mounted modular interface simplifies cable access
- 100% 105°C-rated Japanese electrolytic capacitors
- 140mm fluid dynamic bearing fan
Cons
- Side-facing connectors require specific chassis space
- Efficiency capped at 80 Plus Gold rather than Platinum or Titanium
- Uses Type 5 micro-fit cables instead of standard-size modular plugs
Good fit if
- You need native ATX 3.1 and PCIe 5.1 hardware support.
- You want side-oriented cable ports for cleaner management.
- You are building a system with a white color theme.
Skip if
- You use a compact case lacking side clearance behind the power supply.
- You require 80 Plus Platinum or Titanium efficiency levels.
Verdict: Corsair RM750x Shift 750W Power Supply combines modern ATX 3.1 and PCIe 5.1 specifications with an accessible side-mounted connector panel. It provides reliable 80 Plus Gold power delivery and Japanese capacitors for modern desktop builds.
EVGA SuperNOVA 750 G2 750W Power Supply
Best for: long-term reliability in spacious ATX cases
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
The EVGA SuperNOVA 750 G2 is a 750W fully modular power supply built with Japanese brand capacitors and an 80 PLUS Gold efficiency rating reaching up to 90% under typical loads. It features a 140mm double ball bearing fan with EVGA ECO Mode alongside full hardware protections. You get a reliable 10-year warranty and detachable cables, making it a dependable choice if you need clean cable management in a standard ATX enclosure.
Pros
- 80 PLUS Gold certified for up to 90% efficiency under typical loads
- Fully modular cable design simplifies installation and airflow
- Equipped with Japanese brand capacitors and heavy-duty protections
- 140mm double ball bearing fan with EVGA ECO Mode
- Backed by a 10-year manufacturer warranty
Cons
- Long 7-inch chassis requires ample room inside your case
- Heavy unit at 6.6 pounds compared to compact alternatives
Good fit if
- You want a fully modular 750W unit backed by a 10-year warranty.
- You have a PC chassis with clearance for a 7-inch power supply.
- You prefer a 140mm double ball bearing fan with semi-passive cooling.
Skip if
- You build inside a compact case with tight PSU shroud space.
- You need a lightweight power supply for a portable computer build.
Verdict: EVGA SuperNOVA 750 G2 Gold Modular PSU provides Japanese capacitors, high efficiency, and comprehensive protections for full-sized builds. It is a durable choice if your chassis comfortably fits its 7-inch length.
EVGA SuperNOVA 750W Platinum PSU
Best for: high-efficiency full-size ATX desktop builds
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
The EVGA SuperNOVA 750 P2 is a 750-watt power supply built for high electrical efficiency. It carries an 80 PLUS Platinum certification, providing up to 92 percent efficiency under typical loads. You get fully modular cabling to minimize internal clutter, a 140mm double-ball-bearing fan with ECO mode, and Japanese capacitors. It suits you if you prioritize high energy efficiency and a long 10-year warranty.
Pros
- 80 PLUS Platinum certification delivers up to 92% efficiency under typical loads
- Fully modular cabling system reduces internal case clutter
- 140mm double ball bearing cooling fan with ECO mode
- 100% Japanese capacitors for internal component reliability
- Backed by a 10-year warranty
Cons
- Length of 6.5 inches requires more clearance than standard 140mm ATX units
- No ATX 3.0 or PCIe 5.0 power connectors listed in specifications
Good fit if
- You want 80 PLUS Platinum efficiency for lower heat dissipation.
- You need fully modular cables to simplify routing inside your chassis.
- You prefer a 10-year warranty paired with Japanese capacitors.
Skip if
- You need a compact power supply shorter than 6.5 inches for a small case.
- You require native ATX 3.0 or PCIe 5.0 graphics connectors listed in specifications.
Verdict: EVGA SuperNOVA 750W Platinum Modular PSU delivers high-efficiency 80 PLUS Platinum power with full modularity and Japanese capacitors. It provides reliable operation backed by a 10-year warranty for full-size PC builds.
Thermaltake Toughpower iRGB Plus 750W Gold PSU
Best for: PC builders wanting software monitoring and RGB sync
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX12V V2.4
- Fan Size
- 140mm
View on Amazon: Thermaltake Toughpower iRGB Plus 750W Gold PSU
The Thermaltake Toughpower iRGB Plus 750W is a fully modular 80 Plus Gold power supply designed for builds that emphasize software monitoring and lighting control. It delivers 750 watts using the ATX12V 2.4 standard, backed by a 10-year warranty. A 140mm Riing Duo RGB fan supports semi-passive Smart Zero Fan operation below 30% load. This unit suits you if you want real-time component tracking via desktop or mobile applications alongside customizable internal lighting.
Pros
- Fully modular cable design
- 80 Plus Gold energy efficiency
- 10-year manufacturer warranty
- 140mm Riing Duo RGB fan with Smart Zero Fan mode
- SPM app monitoring with Razer Chroma and Alexa support
Cons
- Built to ATX12V 2.4 rather than newer ATX 3.0 standards
- Casing length of 6.3 inches is longer than standard compact ATX units
Good fit if
- You want real-time app tracking for power consumption and component status.
- You plan to integrate your power supply lighting with Razer Chroma or Alexa.
- You prefer zero fan noise under light workloads up to 30% load.
Skip if
- You need a native ATX 3.0 unit for newer graphics card power standards.
- You have a compact case that requires a shorter 5.5-inch power supply.
Verdict: Thermaltake Toughpower iRGB Plus 750W Gold delivers reliable 80 Plus Gold power with digital monitoring and RGB ecosystem integration. It gives you comprehensive hardware telemetry backed by a 10-year warranty.
be quiet! Straight Power 11 Platinum 750W
Best for: quiet, high-efficiency desktop PC builds
- Size
- 750W (what this guide is about)
- Wattage
- 750 W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 135 mm
- Dimensions
- 13 × 9.75 × 4 inches
The be quiet Straight Power 11 Platinum 750W delivers 750 watts of continuous power with 80 PLUS Platinum efficiency reaching up to 93.7 percent. It features fully modular cabling and a 135mm Silent Wings 3 cooling fan paired with a funnel-shaped intake. The wire-free internal layout on the DC side aids airflow and longevity. This unit suits you if you need quiet operation and high electrical efficiency.
Pros
- 80 PLUS Platinum efficiency reaching up to 93.7%
- Fully modular cable design
- 135mm Silent Wings 3 cooling fan with funnel-shaped intake
- Wire-free DC side layout to enhance cooling and longevity
Cons
- No ATX 3.0 support included
- Lacks native PCIe 5.0 12VHPWR connection
Good fit if
- You want 80 PLUS Platinum efficiency up to 93.7%.
- You prefer fully modular cables for clean routing.
- You prioritize quiet operation using a 135mm fan.
Skip if
- You need ATX 3.0 standard compliance.
- You require a dedicated PCIe 5.0 power cable.
Verdict: be quiet Straight Power 11 Platinum 750W Modular PSU offers 80 PLUS Platinum efficiency and fully modular cabling with low-noise 135mm cooling. It delivers efficient power distribution for quiet desktop computer builds.
ARESGAME 750W Semi-Modular Bronze ATX Power Supply
Best for: entry-level 750W builds needing semi-modular cables
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Bronze
- Modularity
- Semi-Modular
- Fan Size
- 120mm
- Form Factor
- ATX
View on Amazon: ARESGAME 750W Semi-Modular Bronze ATX Power Supply
This ATX unit from ARESGAME delivers 750W of power with an 80 PLUS Bronze efficiency certification. Built for standard desktop systems, it features semi-modular cabling, a 120mm cooling fan, and essential safety protections including OVP, UVP, OPP, and SCP. If you want a basic 750W supply with all-black cables to keep your chassis tidy without needing full modularity, this power supply fits your PC build.
Pros
- 80 PLUS Bronze certification with 85% or higher efficiency
- Semi-modular cable configuration
- All-black cables without multicolored wires
- Built-in OVP, UVP, OPP, and SCP protections
Cons
- Semi-modular design leaves essential cables permanently attached
- 80 PLUS Bronze efficiency is lower than Gold or Platinum alternatives
Good fit if
- You need a 750W ATX power supply with all-black cabling.
- You prefer semi-modular cables to reduce unused wiring clutter.
- You only require standard 80 PLUS Bronze efficiency.
Skip if
- You require fully modular cabling to disconnect every wire.
- You need higher efficiency such as 80 PLUS Gold or Platinum.
Verdict: ARESGAME 750W Semi-Modular Bronze PSU provides essential 750W output with semi-modular cabling, black wires, and standard 80 PLUS Bronze efficiency. It serves builders who want straightforward ATX power without needing full modularity or higher efficiency ratings.
SilverStone 750W Platinum SFX PSU
Best for: compact small-form-factor PC builds
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Platinum
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
The SilverStone 750W SFX Platinum Power Supply provides high wattage in a standard SFX form factor measuring 4.92 by 2.5 by 3.94 inches. You get 80 PLUS Platinum efficiency, all Japanese capacitors, and fully modular cabling to simplify tight builds. A 92mm dual ball bearing fan uses automatic start-stop based on temperature and load. This unit suits you if you assemble a compact small-form-factor PC requiring efficient power delivery.
Pros
- 80 PLUS Platinum certified efficiency
- Compact SFX form factor at 4.92 x 2.5 x 3.94 inches
- Fully modular cable system
- 92mm dual ball bearing fan with auto start-stop
Cons
- Smaller 92mm fan compared to standard ATX power supplies
- No ATX 3.0 or PCIe 5.0 specifications listed
Good fit if
- You build inside a compact small-form-factor case requiring an SFX power supply.
- You prioritize 80 PLUS Platinum efficiency in a 750W capacity.
- You need fully modular cables to reduce wire clutter in tight spaces.
Skip if
- You use a full-size ATX case and prefer a 120mm or 140mm cooling fan.
- You require dedicated ATX 3.0 or PCIe 5.0 connector specifications.
Verdict: SilverStone 750W SFX Platinum Power Supply delivers high-efficiency 750W output in a space-saving SFX enclosure. It gives compact systems modular cable management and temperature-controlled fan operation.
SilverStone 750W Gold SFX Power Supply
Best for: compact small-form-factor PC builds
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
The SilverStone 750W Gold SFX Power Supply is a compact unit designed for small-form-factor builds. It delivers 750 watts with an 80 Plus Gold efficiency rating and features a fully modular design with flexible flat cables. Built with Japanese electrolytic capacitors and cooled by a 92mm fan, it fits cases requiring standard SFX dimensions of 4.92 by 2.5 by 3.94 inches. It suits you if you need compact high-wattage power.
Pros
- Compact SFX form factor measuring 4.92 x 2.5 x 3.94 inches
- 80 Plus Gold efficiency rating
- Fully modular flat cable design
- All Japanese electrolytic capacitors
- Strict ±3% voltage regulation
Cons
- 92mm cooling fan is smaller than standard 120mm or 140mm PSU fans
- SFX dimensions do not fill standard full-size ATX power supply bays
Good fit if
- You need a 750W power supply in a compact SFX form factor
- You prefer fully modular flat cables for tight case spaces
- You want Japanese electrolytic capacitors with ±3% voltage regulation
Skip if
- You need a full-size ATX power supply for your enclosure
- You prefer a unit with a larger 120mm or 140mm cooling fan
Verdict: SilverStone 750W Gold SFX Power Supply delivers 750 watts of 80 Plus Gold power in a compact SFX footprint. It provides flexible modular cabling and strict voltage regulation for space-constrained systems.
Redragon 750W Gold Modular RGB PSU
Best for: ATX builds wanting modular cables and RGB
- Size
- 750W (what this guide is about)
- Wattage
- 750 Watt
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- Form Factor
- ATX
- Dimensions
- 11.8 × 7.87 × 4.72 inches
This Redragon 750W unit gives you an 80 Plus Gold efficiency rating with fully modular flat black cables. It features an integrated cooling fan with nine RGB modes and twenty-six colors, alongside a zero-RPM mode that stays passive below 60°C. With Japanese capacitors and a 160mm ATX housing, it suits your build if you want dedicated lighting options without sacrificing modular cable routing in a standard case.
Pros
- 80 Plus Gold certified efficiency
- Fully modular flat black cables
- Zero-RPM fan mode operates silently under 60°C
- Built with 100% Japanese capacitors
- Integrated fan offers 9 RGB modes and 26 colors
Cons
- 160mm casing length exceeds compact 140mm footprints
- No ATX 3.0 or native 12VHPWR connector listed
Good fit if
- You want built-in RGB lighting with selectable modes directly on the fan.
- You need fully modular flat cables to simplify routing inside your chassis.
- You prefer silent operation during lower loads below 60°C.
Skip if
- You need a shorter 140mm unit for tight clearance constraints.
- You prefer an unlit power supply without RGB illumination.
Verdict: Redragon 750W 80 Plus Gold Fully Modular RGB PSU combines efficient Gold-rated power delivery with colorful fan illumination. Its Japanese capacitors and modular flat cables make it a solid choice for visible ATX builds.
GamePower 750W Bronze ATX Power Supply
Best for: gaming desktop builds requiring 750W output
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Bronze
- Fan Size
- 140mm
- Form Factor
- ATX
- Recommended Use
- Gaming
This 750-watt ATX power supply from GAMEPOWER delivers power for gaming setups using a single +12V rail and active PFC. It features an 80 Plus Bronze certification, reaching up to 85 percent efficiency under typical loads. A 140mm low-noise fan handles internal cooling, while flat black cables help keep routing clean. It suits you if you need a standard ATX unit for a gaming desktop without higher-tier efficiency ratings.
Pros
- 80 Plus Bronze certification with up to 85% efficiency
- Large 140mm low-noise cooling fan
- Single +12V rail design for stable power delivery
- Flat black cables for straightforward routing
Cons
- 80 Plus Bronze rating delivers lower efficiency than Gold or Platinum units
- Cabling is non-modular rather than modular
- Casing length measures 6.3 inches, requiring adequate chassis depth
Good fit if
- You need a 750W power supply for a dedicated gaming system.
- You want a cooling setup that uses a 140mm fan.
- You prefer flat black cables to manage wiring inside an ATX case.
Skip if
- You require 80 Plus Gold or higher energy efficiency.
- You want a modular unit to detach unused cables.
- You need a compact ATX power supply shorter than 6.3 inches.
Verdict: GAMEPOWER 750W 80 Plus Bronze Power Supply provides 750 watts of continuous delivery with a single +12V rail and a 140mm cooling fan for desktop gaming systems. It serves standard ATX builds that do not require higher efficiency certifications or modular cable layouts.
be quiet! Dark Power 13 750W Titanium PSU
Best for: maximum energy efficiency and ATX 3.0 builds
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Titanium
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR, 6+2-pin
- Dimensions
- 6.89 × 5.91 × 3.39 inches
The be quiet! Dark Power 13 is a 750W power supply built for high efficiency and modern hardware. It carries an 80 PLUS Titanium rating reaching up to 95.8% efficiency. It also features ATX 3.0 compliance with a native 12VHPWR connector alongside standard PCIe 6+2-pin cables. This unit suits you if you want peak electrical efficiency, low noise from a Silent Wings fan, and dedicated handling for power excursions up to double its rating.
Pros
- 80 PLUS Titanium certified with up to 95.8% efficiency
- ATX 3.0 compliant with native 12VHPWR and PCIe 6+2-pin connectors
- Handles power excursions up to double its rated wattage
- Tripod-mounted Silent Wings fan with fluid-dynamic bearing
Cons
- Longer chassis depth at 6.89 inches requires extra case space
- Relatively heavy unit at 8.88 pounds
- Distributes power across four 12V rails rather than a single rail
Good fit if
- You require 80 PLUS Titanium efficiency for reduced power consumption.
- You need ATX 3.0 support and a native 12VHPWR cable for a PCIe 5.0 graphics card.
- You want quiet cooling via a fluid-dynamic bearing fan.
Skip if
- You have a compact case that cannot accommodate a 6.89-inch length.
- You prefer a single 12V rail layout over four independent rails.
Verdict: be quiet! Dark Power 13 750W Titanium PSU delivers top-tier electrical efficiency and native ATX 3.0 connectivity. Its 6.89-inch chassis demands sufficient clearance, but its quiet cooling and transient spike tolerance make it an exceptional choice.
Seasonic Vertex 750W Gold ATX 3.0 Power Supply
Best for: ATX 3.0 builds needing long warranty coverage
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR
View on Amazon: Seasonic Vertex 750W Gold ATX 3.0 Power Supply
The Seasonic Vertex 750W ATX 3.0 Power Supply is a fully modular unit built for modern hardware. It delivers 750 watts with an 80 Plus Gold efficiency certification and includes a native 12VHPWR cable for PCIe 5.0 graphics cards. Inside, a 135mm fluid dynamic bearing fan handles cooling with hybrid silent control, backed by a 12-year warranty. You get standard ATX dimensions suited for modern desktop builds.
Pros
- 12-year manufacturer warranty
- Native 12VHPWR cable for PCIe 5.0 GPUs
- Fully modular cable management
- 135mm fluid dynamic bearing fan with hybrid silent control
Cons
- 80 Plus Gold efficiency rather than Platinum rating
- ATX casing does not fit small-form-factor SFX enclosures
Good fit if
- You need a dedicated 12VHPWR connector for a modern graphics card.
- You want long-term hardware support via a 12-year warranty.
- You prefer fully modular cables to simplify your PC build.
Skip if
- You need 80 Plus Platinum or higher efficiency.
- You are assembling a compact system that requires an SFX power supply.
Verdict: Seasonic Vertex 750W ATX 3.0 Power Supply delivers modern PCIe 5.0 connectivity and fully modular cabling backed by a 12-year warranty. It provides dependable 80 Plus Gold power delivery for standard ATX configurations.
Seasonic Focus V3 GX-750 ATX 3.0 PSU
Best for: compact ATX builds needing PCIe 5.0
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Full-Modular
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR
The Seasonic Focus V3 750W is a fully modular ATX power supply built to modern standards. It delivers 750 watts with 80 PLUS Gold efficiency and supports the ATX 3.0 specification with an included 16-pin 12VHPWR PCIe Gen 5 cable. At 140 mm long, the chassis fits tight spaces while housing a 135 mm fluid dynamic bearing fan. This unit suits you if you need compact modern hardware backed by a 10-year warranty.
Pros
- ATX 3.0 standard with native 16-pin 12VHPWR PCIe Gen 5 connector
- Compact 140 mm depth simplifies case cable management
- 135 mm fluid dynamic bearing fan provides cooling
- 10-year warranty coverage
Cons
- 80 PLUS Gold efficiency rather than Platinum or Titanium
- Standard ATX size does not fit dedicated SFX chassis
Good fit if
- You need a native 16-pin 12VHPWR cable for modern graphics cards.
- You want a short 140 mm casing for extra cable clearance.
- You prefer fully modular cabling backed by a 10-year warranty.
Skip if
- You want higher Platinum or Titanium efficiency certification.
- You require an SFX form factor for mini-ITX enclosures.
Verdict: Seasonic Focus V3 750W Gold ATX 3.0 Power Supply combines a compact 140 mm depth with native 12VHPWR support and a 10-year warranty. It provides dependable 750W power distribution for contemporary ATX graphics builds.
ASUS ROG Strix 750W Gold ATX 3.0 Power Supply
Best for: modern ATX 3.0 builds needing quiet cooling
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80+ Gold Certified
- Modularity
- Fully Modular
- ATX Version
- ATX 3.0
- Warranty
- 10 Year
View on Amazon: ASUS ROG Strix 750W Gold ATX 3.0 Power Supply
The ASUS ROG Strix 750W Gold Aura Edition is a fully modular ATX 3.0 power supply designed to deliver power to modern systems. It features 80 Plus Gold efficiency, an integrated aluminum heatsink casing, and a 10-year warranty. With its 7-inch housing and 0dB fan mode, it suits your build if you run components inside a chassis that accommodates longer power supply dimensions.
Pros
- ATX 3.0 compliant with fully modular cable configuration
- 80 Plus Gold efficiency rating
- 0dB fan mode with dual ball bearing Axial-tech design
- Aluminum case and ROG heatsinks assist internal heat dissipation
- Backed by a 10-year warranty
Cons
- 7-inch length exceeds standard 5.5-inch compact ATX sizing
- Heavier unit at 5.9 pounds
Good fit if
- You need an ATX 3.0 power supply with fully modular cabling.
- You want quiet operation with 0dB mode during light loads.
- You have a chassis with at least 7 inches of PSU depth clearance.
Skip if
- You are building in a small-form-factor or compact chassis with tight PSU clearance.
- You require an efficiency rating higher than 80 Plus Gold.
Verdict: ASUS ROG Strix 750W Gold Aura Edition delivers reliable ATX 3.0 power with advanced heatsinks and a 10-year warranty. Its 7-inch depth makes it best suited for mid-tower and full-tower PC enclosures.
Thermaltake Smart BM3 750W Semi-Modular PSU
Best for: ATX 3.1 builds needing 5-year coverage
- Size
- 750W (what this guide is about)
- Wattage
- 750W
- Efficiency Rating
- 80Plus Bronze
- Modularity
- Semi-Modular
- ATX Version
- ATX 3.1
- Fan Size
- 120mm
The Thermaltake Smart BM3 750W provides ATX 3.1 support and PCIe 5 compliance for modern systems. It delivers 750W of power with an 80 Plus Bronze efficiency certification and uses semi-modular cabling to help cable management. A 120mm fluid dynamic bearing fan handles cooling with zero-fan operation under lower loads. This unit suits you if you want current platform standards paired with a five-year warranty.
Pros
- ATX 3.1 and PCIe 5 compliant
- 5-year manufacturer warranty
- 120mm fluid dynamic bearing fan with Smart Zero Fan function
- Japanese 105°C main capacitor
Cons
- 80 Plus Bronze efficiency rating
- Semi-modular cabling leaves core cables fixed
Good fit if
- You want ATX 3.1 and PCIe 5 compatibility for your build.
- You want a five-year warranty on a 750W power supply.
Skip if
- You want a fully modular cable design.
- You require 80 Plus Gold or higher efficiency.
Verdict: Thermaltake Smart BM3 750W Semi-Modular PSU delivers ATX 3.1 compatibility backed by a 5-year warranty. It is a capable choice if you do not require Gold-level efficiency or full modularity.
Specifications side by side
| Spec | Corsair RM750x Shift White 750W ATX Power Supply | EVGA SuperNOVA 750 G2 750W Power Supply | EVGA SuperNOVA 750W Platinum PSU | Thermaltake Toughpower iRGB Plus 750W Gold PSU | be quiet! Straight Power 11 Platinum 750W | ARESGAME 750W Semi-Modular Bronze ATX Power Supply | SilverStone 750W Platinum SFX PSU | SilverStone 750W Gold SFX Power Supply | Redragon 750W Gold Modular RGB PSU | GamePower 750W Bronze ATX Power Supply | be quiet! Dark Power 13 750W Titanium PSU | Seasonic Vertex 750W Gold ATX 3.0 Power Supply | Seasonic Focus V3 GX-750 ATX 3.0 PSU | ASUS ROG Strix 750W Gold ATX 3.0 Power Supply | Thermaltake Smart BM3 750W Semi-Modular PSU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage | 750W | 750W | 750W | 750W | 750 W | 750W | 750W | 750W | 750 Watt | 750W | 750W | 750W | 750W | 750W | 750W |
| Efficiency Rating | 80 Plus Gold | 80 PLUS Gold | 80 PLUS Platinum | 80+ Gold | 80 PLUS Platinum | 80 PLUS Bronze | 80 Plus Platinum | 80 Plus Gold | 80+ Gold | 80 Plus Bronze | 80 PLUS Titanium | 80+ Gold | 80 PLUS Gold | 80+ Gold Certified | 80Plus Bronze |
| Modularity | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Semi-Modular | Fully Modular | Fully Modular | Fully Modular | not specified | not specified | Fully Modular | Full-Modular | Fully Modular | Semi-Modular |
| ATX Version | ATX 3.1 | not specified | not specified | ATX12V V2.4 | not specified | not specified | not specified | not specified | not specified | not specified | ATX 3.0 | ATX 3.0 | ATX 3.0 | ATX 3.0 | ATX 3.1 |
| PCIe Connector Type | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 12VHPWR, 6+2-pin | 12VHPWR | 12VHPWR | not specified | not specified |
| Fan Size | 140mm | 140mm | 140mm | 140mm | 135 mm | 120mm | 92mm | 92mm | not specified | 140mm | not specified | 135mm | 135 mm | not specified | 120mm |
| Warranty | not specified | 10 Year | 10 Year | 10 Year | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 12 Year | 10 Year | 10 Year | 5 Year |
| Form Factor | ATX | not specified | not specified | not specified | not specified | ATX | SFX | SFX | ATX | ATX | ATX | ATX | ATX | ATX | ATX |
| PCIe Version | PCIe 5.1 | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Recommended Use | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Gaming | not specified | not specified | not specified | not specified | not specified |
| Power Factor Correction | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Active PFC | not specified | not specified | not specified | not specified | not specified |
| Size | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W | 750W |
| Dimensions | 6.3 × 5.91 × 3.39 inches | 7 × 5.9 × 3.4 inches | 6.5 × 5.91 × 3.3 inches | 6.3 × 5.9 × 3.4 inches | 13 × 9.75 × 4 inches | 5.9 × 5.5 × 3.3 inches | 3.94 × 4.92 × 2.5 inches | 3.94 × 4.92 × 2.5 inches | 11.8 × 7.87 × 4.72 inches | 6.3 × 5.91 × 3.39 inches | 6.89 × 5.91 × 3.39 inches | 6.3 × 5.9 × 3.4 inches | 5.5 × 5.9 × 3.4 inches | 7 × 5.9 × 3.3 inches | 5.9 × 5.5 × 3.4 inches |
| Weight | 3.75 pounds | 6.6 pounds | 5.95 pounds | 5 pounds | 3.75 pounds | 3.97 pounds | not specified | 4.45 pounds | not specified | 1.1 pounds | 8.88 pounds | 5.95 pounds | 6.23 pounds | 5.9 pounds | 3.6 pounds |
| Color | White | not specified | Black | Gold | Black | not specified | not specified | not specified | not specified | black | Multicolor | not specified | not specified | not specified | Black |
| Model | CP-9020273-NA | 220-G2-0750-XR | 220-P2-0750-X1 | PS-TPI-0750F3FDGU-1 | BN642 | AGW750 | PS-SX750-PT-X | not specified | PSU006 | GP-750 | BN659 | VERTEX GX-750 | ATX3-FOCUS-GX-750 | ROG-STRIX-750G-AURA-GAMING | SPD-750AH2CLB |
Is a 750W Power Supply Worth It?
A 750W power supply provides continuous electrical capacity for standard desktop computers and dedicated gaming hardware. Selecting 750W gives your build sufficient continuous wattage to handle modern graphics cards and processors with active power factor correction. Across these 15 models, this output tier pairs with efficiency ratings from 80 Plus Bronze up to 80 Plus Titanium. Choosing 750W ensures steady energy delivery without forcing you into larger physical chassis depths or specialized electrical setups, keeping your desktop build within standard thermal and power operating limits.
Worth it if
- You configure a desktop system with a dedicated graphics card requiring continuous 750W output.
- You want modern platform features like ATX 3.0 or ATX 3.1 transient management at a standard desktop wattage.
- You balance power delivery across high-efficiency ratings ranging from 80 Plus Gold to Titanium.
Skip it if
- You run high-draw workstation components that exceed a continuous 750-watt power budget.
- You assemble a low-power office desktop that operates well below 750 watts of total system consumption.
How We Chose 750W PSUs
To find these 750W units, you see models identified directly from Amazon listings. A power supply qualifies when the listing states 750W in the title or feature list. Only one variant from each product family is included. All details come strictly from published specifications, and products are not physically handled.
We display the 15 options with products in stock first, then by Amazon sales rank (better-selling products first). You can compare published specifications across each model, including 80 Plus efficiency ratings, modular cabling, ATX standards, and chassis dimensions. Evaluating these specs alongside warranty coverage helps you choose the right 750W unit for your system build.
How to Choose the Right 750W Power Supply
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Compare 80 Plus Efficiency Ratings
You should evaluate the 80 Plus certification badge to understand power conversion efficiency. Bronze units deliver entry-level efficiency, Gold provides balanced performance, while Platinum and Titanium reduce wasted thermal energy. If you plan extended daily computing workloads, higher ratings limit excess heat output inside your chassis. For maximum electrical conversion, consider the be quiet! Dark Power 13 750W Titanium PSU. Choosing higher certification ratings helps your system maintain stable internal temperatures during demanding processing loads.
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Select Modularity for Cable Management
You can choose between fully modular, semi-modular, and non-modular designs. Fully modular supplies let you detach every lead, which eliminates unused cables and simplifies chassis airflow management. Semi-modular supplies keep essential motherboard cables permanently attached while letting you detach auxiliary drives and PCIe connections. If your build needs straightforward baseline connectivity, a unit like the ARESGAME 750W Semi-Modular Bronze ATX Power Supply keeps core cables fixed and allows optional routing for accessories. Select fully modular designs when working in tighter configurations.
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Check ATX and PCIe Standards
You must verify the ATX standard when powering modern graphics hardware. Standard ATX 3.0 and ATX 3.1 designs handle transient load spikes and include dedicated 12VHPWR or PCIe 5.0 connectors. Older hardware standards require multiple 8-pin adapters to route power to modern GPUs. If you assemble an updated platform with dedicated PCIe 5.0 power delivery, look at the Seasonic Focus V3 GX-750 ATX 3.0 PSU. Matching the standard version to your GPU avoids relying on split external adapters.
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Measure Enclosure Depth Clearance
You need to check the physical length of the power supply against your chassis clearance before purchasing. While standard width and height remain fixed across ATX cases, unit depth varies significantly. Compact ATX units measure 5.5 inches in depth, whereas larger units reach 7 inches or more. For example, the EVGA SuperNOVA 750 G2 750W Power Supply measures 7 inches long and requires a spacious drive bay area. Always measure the clearance behind your case drive cages to ensure modular cables fit without bending.
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Review Manufacturer Warranty Coverage
You should compare manufacturer warranty terms to gauge expected component longevity. Standard entry-level models frequently provide 5-year coverage, while premium platforms offer 10-year or 12-year commitments. Longer warranty periods reflect robust internal component construction, such as Japanese capacitors and heavy-duty cooling assemblies. If long-term manufacturer support is your top concern, the Seasonic Vertex 750W Gold ATX 3.0 Power Supply includes 12-year warranty coverage. Check manufacturer warranty duration to verify that the power supply protects your computer components across multiple upgrade cycles.
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Evaluate Cooling and Monitoring
You should inspect cooling hardware and monitoring features based on your build priorities. Power supplies utilize cooling fans ranging from compact sizes to large 140mm blades to control operating temperatures. Some advanced models include integrated digital sensors that allow real-time monitoring of electrical telemetry, wattage draw, and fan controls directly through system software. The Thermaltake Toughpower iRGB Plus 750W Gold PSU integrates digital monitoring alongside addressable lighting synchronization. If you prefer active hardware tracking, selecting a digital telemetry unit provides detailed insight into real-time power performance.
Frequently asked questions
What is the difference between ATX 3.0 and ATX 3.1 power supplies?
ATX 3.1 updates the high-power graphics connector standard introduced in ATX 3.0 to improve connection safety. Models like the Corsair RM750x Shift and Thermaltake Smart BM3 feature ATX 3.1 specifications. Meanwhile, units such as the Seasonic Vertex GX-750 and be quiet! Dark Power 13 adhere to ATX 3.0 guidelines. Both standards support modern high-draw components, but ATX 3.1 uses revised connector mechanical dimensions to ensure secure power transmission to modern graphics hardware.
Can a 750W power supply fit inside a small form factor case?
Yes, provided you choose a power supply designed in the SFX form factor. Standard desktop power supplies use the ATX form factor, but models like the SilverStone 750W Platinum SFX and SilverStone 750W Gold SFX measure just 3.94 inches long. These compact dimensions allow 750-watt power delivery inside tight enclosures where a standard 5.5-inch or 7-inch ATX unit cannot physically fit. Always check your chassis mounting specifications before selecting a model.
What is the difference between fully modular and semi-modular power supplies?
Fully modular power supplies allow you to detach every single cable, while semi-modular units have core motherboard cables permanently attached. Fully modular units like the Seasonic Focus V3 GX-750 let you connect only the exact cords your hardware requires. Semi-modular models such as the Thermaltake Smart BM3 or ARESGAME 750W leave primary cables fixed, allowing you to remove peripheral lines. Fully modular setups streamline internal cable routing in tight spaces.
What efficiency level does an 80 Plus Titanium power supply deliver?
An 80 Plus Titanium rating delivers the highest electrical efficiency standard among standard consumer ratings, outperforming Bronze, Gold, and Platinum certifications. In this category, the be quiet! Dark Power 13 750W Titanium PSU represents this top-tier efficiency tier. Operating at Titanium levels minimizes electrical energy lost as excess heat during conversion. This reduced waste heat keeps internal components cooler during heavy system loads, allowing internal cooling fans to operate more quietly.
How does power supply length affect case clearance?
Power supply length directly determines whether your chassis has enough room for cable routing and internal drive cages. Standard ATX supplies vary significantly in depth. For example, the Seasonic Focus V3 GX-750 measures 5.5 inches long, fitting easily into compact cases. In contrast, the EVGA SuperNOVA 750 G2 and ASUS ROG Strix measure 7 inches long. You must measure your enclosure's PSU bay to ensure long units do not crowd internal modular connectors.
What features distinguish RGB and digitally monitored power supplies?
These units add visual lighting or real-time performance tracking to standard power delivery. The Redragon 750W Gold Modular PSU incorporates colorful fan illumination for display in cases with open viewing windows. For advanced tracking, the Thermaltake Toughpower iRGB Plus combines customizable RGB illumination with digital hardware monitoring, letting you review operating telemetry directly through software. These aesthetic and monitoring additions supplement basic 80 Plus Gold electrical performance without altering fundamental 750-watt power distribution.
How do cooling fan sizes differ across 750W power supplies?
Cooling fan dimensions vary across models depending on chassis dimensions and acoustic engineering. For instance, the GAMEPOWER 750W Bronze power supply utilizes a 140mm cooling fan, whereas the be quiet! Straight Power 11 Platinum integrates a 135mm cooling fan. Larger fans can move air effectively at lower rotational speeds compared to smaller alternatives. In compact SFX enclosures like the SilverStone 750W units, smaller internal fans are required to match the reduced 2.5-inch casing height.