Best 1000W PC Power Supplies in 2026: 15 Picks Ranked by Specs
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Choosing the right 1000W PC power supply in 2026 ensures your system handles demanding hardware with stable energy. We compared 15 models based strictly on the specifications published on their product listings. The Corsair SF 1000W Fully Modular PSU leads our ranking because it delivers 1000 watts of output with fully modular cabling at a weight of 2.31 pounds.
This guide helps you compare dimensions, efficiency ratings, and connector types. You can decide which option provides the exact fit and cabling support your build requires.
Quick picks
The best fit for you
- You want a lightweight fully modular power supply Corsair SF 1000W Fully Modular PSU It delivers 1000 watts of fully modular power at 2.31 pounds.
- You need native ATX 3.1 and PCIe 5.1 connectivity Corsair RM1000x 1000W ATX 3.1 PSU It includes native ATX 3.1 support, PCIe 5.1 compatibility, and a 12V-2x6 connector.
- You want top-tier efficiency with a long warranty EVGA SuperNOVA 1000W Titanium PSU It carries an 80 Plus Titanium efficiency rating and a 10-year warranty.
- You are building a white ATX 3.1 PC Vetroo 1000W White Power Supply It comes in white and provides native ATX 3.1 and PCIe 5.1 support.
Our 15 picks
Corsair SF 1000W Fully Modular PSU
Best for: high-wattage builds accepting renewed hardware
- Size
- 1000W
- Wattage
- 1000 Watts
- Efficiency Rating
- 80 Plus
- Modularity
- Fully Modular
- Dimensions
- 7.6 × 9.4 × 11.3 inches
- Weight
- 2.31 pounds
View on Amazon: Corsair SF 1000W Fully Modular PSU (paid link)
This renewed Corsair unit delivers 1000 watts of power in a black enclosure with a fully modular cable design. You attach only the cables your build requires, which helps keep internal clutter down. Weighing 2.31 pounds, it provides high-capacity delivery for demanding desktop components. This power supply suits you if you need a 1000W fully modular platform and are comfortable purchasing a renewed hardware unit.
Pros
- 1000-watt power delivery
- Fully modular cable configuration
- Total weight of 2.31 pounds
- Neutral black finish
Cons
- Renewed condition rather than brand new
- Specific 80 Plus level is unspecified in the provided data
- Listed dimensions indicate a large overall footprint
Good fit if
- You need 1000 watts of power with fully modular cabling to reduce clutter.
- You are satisfied with installing a renewed component in your PC.
- You want a black power supply that weighs under 2.5 pounds.
Skip if
- You insist on buying a factory-new power supply.
- You need a confirmed 80 Plus Gold, Platinum, or Titanium certification rating.
Verdict: Corsair 1000W Fully Modular Power Supply delivers 1000 watts of output with modular cable management for clean system builds. It provides high capacity at a light weight if you are open to using renewed hardware.
Corsair RM1000x 1000W ATX 3.1 PSU
Best for: ATX builds needing PCIe 5.1 support
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
View on Amazon: Corsair RM1000x 1000W ATX 3.1 PSU (paid link)
This 1000W power supply from Corsair provides ATX 3.1 compliance and native PCIe 5.1 support for modern hardware builds. You get fully modular cabling to minimize clutter inside standard ATX enclosures, along with a dedicated 12V-2x6 connector for high-draw components. Its standard black finish and 6.88-pound build suit builders who need dedicated 1000W output with current cable standards, clean cable management, and full modularity in their desktop setups.
Pros
- ATX 3.1 compliant and PCIe 5.1 support
- Dedicated 12V-2x6 connector
- Fully modular cable design
- Standard ATX form factor
Cons
- Chassis available only in black
- Weight is relatively heavy at 6.88 pounds
- Not compatible with compact SFX enclosures
Good fit if
- You need ATX 3.1 and PCIe 5.1 compatibility with a 12V-2x6 connector.
- You want fully modular cables to simplify desktop cable routing.
- You build inside a standard ATX enclosure.
Skip if
- You need a small form factor SFX power supply.
- You require a white unit for a color-matched build.
Verdict: Corsair RM1000x 1000W ATX Power Supply delivers fully modular 1000W power with native ATX 3.1 and PCIe 5.1 connectivity. It offers a solid foundation for standard ATX systems requiring a 12V-2x6 connector.
Corsair RM1000e 1000W ATX Power Supply
Best for: high-power builds needing compact modular cabling
- Size
- 1000W
- Wattage
- 1000 Watt
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Form Factor
- ATX
- Dimensions
- 5.91 × 5.51 × 3.39 inches
View on Amazon: Corsair RM1000e 1000W ATX Power Supply (paid link)
The Corsair RM1000e 1000W ATX Power Supply delivers 1000 watts of power in a standard ATX enclosure. You get 80 Plus Gold efficiency to keep energy waste lower, along with fully modular cables so you only attach the leads your build requires. Its compact 5.9-inch length makes cable routing straightforward in standard cases, while dual EPS12V connectors supply motherboards needing extra power. It suits you if you need high capacity without excess cable clutter.
Pros
- 80 Plus Gold efficiency certification
- Fully modular cable configuration
- Dual EPS12V motherboard connectors
- 105°C-rated internal capacitors
- Compact 5.9-inch chassis length
Cons
- Lower efficiency rating than 80 Plus Platinum or Titanium units
- Available only in black
Good fit if
- You need 1000W of power with fully modular cables to keep your case organized.
- You run a motherboard that requires dual EPS12V power connections.
- You want an 80 Plus Gold unit that fits within a standard 5.9-inch ATX footprint.
Skip if
- You want a higher efficiency rating such as 80 Plus Platinum or Titanium.
- You need an all-white power supply for a color-matched build.
Verdict: Corsair RM1000e 1000W ATX Power Supply delivers dependable 1000W output with 80 Plus Gold efficiency and fully modular cabling. Its dual EPS12V support and compact length make it a practical choice for standard high-power systems.
Corsair RM1000x Shift 1000W Power Supply
Best for: cases with dedicated side-panel cable clearance
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.0
- Dimensions
- 7.09 × 5.91 × 5.08 inches
View on Amazon: Corsair RM1000x Shift 1000W Power Supply (paid link)
The Corsair RM1000x Shift 1000W ATX Power Supply delivers 1000W of power with an 80 Plus Gold efficiency certification. Built to ATX 3.0 and PCIe 5.0 specifications, it features a fully modular side-mounted connector interface instead of traditional rear ports. This layout suits modern desktop builds where you need high wattage and cleaner routing through the side chamber of a compatible ATX case.
Pros
- 1000W power output with 80 Plus Gold efficiency
- ATX 3.0 and PCIe 5.0 compliant architecture
- Fully modular side interface for simplified cabling
Cons
- 7.09-inch length requires extra clearance inside smaller cases
- Side connector layout requires open space next to the PSU bay
Good fit if
- You want side-facing modular connectors for streamlined cable routing.
- You need 1000W of ATX 3.0 and PCIe 5.0 compliant power.
Skip if
- You require an 80 Plus Platinum or Titanium efficiency rating.
- You have a compact case without clearance beside the power supply mount.
Verdict: Corsair RM1000x Shift 1000W ATX Power Supply provides stable 1000W Gold-rated delivery with an innovative side-facing modular panel. It suits spacious modern chassis built around ATX 3.0 hardware.
EVGA Supernova 1000 P2 Platinum Power Supply
Best for: full-tower builds needing 80 PLUS Platinum efficiency
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
View on Amazon: EVGA Supernova 1000 P2 Platinum Power Supply (paid link)
The EVGA SuperNOVA 1000 P2 provides 1000W of continuous power with 80 PLUS Platinum efficiency, reaching up to 94 percent under typical loads. You get a fully modular cable system, 100 percent Japanese capacitors, and a 140mm double ball bearing fan with ECO mode for silent low-load operation. It suits high-demand systems built inside standard or oversized enclosures where you want maximum electrical efficiency and a 10-year warranty.
Pros
- 80 PLUS Platinum efficiency (up to 92% at 115VAC, 94% at 220-240VAC)
- 100% Japanese capacitors with fully modular cabling
- 140mm double ball bearing fan with ECO thermal control mode
- 10-year manufacturer warranty
Cons
- Chassis length measures 7.8 inches, requiring large case clearance
- No native 12V-2x6 or PCIe 5.0 standard connectors listed in specs
Good fit if
- You want 80 PLUS Platinum efficiency in a 1000W power supply.
- You have an enclosure with at least 7.8 inches of clearance for the chassis plus modular cables.
- You prefer a 140mm double ball bearing fan with a zero-RPM ECO mode.
Skip if
- You build inside a compact mid-tower case with limited power supply depth.
- You need native PCIe 5.0 or 12V-2x6 power connectors directly on the unit.
Verdict: EVGA SuperNOVA 1000 P2 1000W Platinum PSU delivers 80 PLUS Platinum efficiency and Japanese components backed by a 10-year warranty. Its 7.8-inch depth demands ample case space.
EVGA 1000 GQ 1000W Semi-Modular PSU
Best for: builders wanting 1000W semi-modular Gold efficiency
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Semi Modular
- Fan Size
- 135mm
- Warranty
- 5 Year
View on Amazon: EVGA 1000 GQ 1000W Semi-Modular PSU (paid link)
The EVGA 1000 GQ is a 1000W semi-modular power supply built for high-demand desktop configurations. You get 80 PLUS Gold certified efficiency alongside a 135mm fluid dynamic bearing fan equipped with an ECO mode for quiet operation. With 100 percent Japanese capacitors, complete internal protections, and a 7.09-inch chassis length, this unit gives you dependable high-wattage power if you do not require a fully modular cable design.
Pros
- 80 PLUS Gold efficiency rating of up to 90% to 92% under typical loads
- 135mm fluid dynamic bearing fan with EVGA ECO mode
- 100 percent Japanese capacitors
- Protections include OVP, UVP, OCP, OPP, SCP, and OTP
Cons
- Semi-modular design leaves essential cables permanently attached
- Chassis length of 7.09 inches requires extra case clearance
Good fit if
- You want 1000W output with semi-modular cabling to reduce excess clutter.
- You want quiet thermal management through a 135mm ECO-mode fan.
- You have a PC chassis that fits a 7.09-inch power supply.
Skip if
- You need a fully modular supply where every cable detaches.
- You have a compact case incompatible with a 7.09-inch unit length.
Verdict: EVGA 1000 GQ Semi-Modular Power Supply delivers robust 1000W Gold-rated output and quiet cooling for systems that do not need fully detachable cables. It offers Japanese capacitors and full hardware protections inside a 7.09-inch frame.
EVGA SuperNOVA 1000W Titanium PSU
Best for: systems demanding top-tier 80 Plus Titanium efficiency
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Titanium
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
View on Amazon: EVGA SuperNOVA 1000W Titanium PSU (paid link)
The EVGA SuperNOVA 1000W Titanium PSU delivers 1000 watts of fully modular power backed by an 80 Plus Titanium efficiency rating. It features a 140mm double ball bearing fan with an integrated ECO Mode, along with complete hardware protections including OVP, UVP, OCP, OPP, SCP, and OTP. This unit suits you if you want maximum electrical efficiency and clean cable management in a system that accommodates its 7.09-inch housing.
Pros
- 80 Plus Titanium certification with 94% to 96% efficiency
- Fully modular cable interface
- 140mm double ball bearing fan with EVGA ECO Mode
- Comprehensive protections including OVP, UVP, OCP, OPP, SCP, and OTP
- 10-year manufacturer warranty
Cons
- Long 7.09-inch chassis requires extra clearance in PC cases
- Heavy unit weight at 10.2 pounds
- No native PCIe 5.0 or 12V-2x6 connector listed
Good fit if
- You need high 80 Plus Titanium energy efficiency for a 1000W build.
- You have an enclosure with clearance for a 7.09-inch power supply depth.
- You want fully modular cabling supported by a 10-year warranty.
Skip if
- You build in a compact case where a 7.09-inch length crowds cable routing.
- You need a lightweight power supply for a portable desktop chassis.
Verdict: EVGA SuperNOVA 1000W Titanium PSU provides 80 Plus Titanium efficiency and full modularity for high-demand desktop configurations. Its 7.09-inch length requires adequate case clearance, but its comprehensive hardware protections and 10-year warranty ensure robust operation.
EVGA SuperNOVA G3 1000W Gold PSU
Best for: compact high-power PC builds
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Fan Size
- 130mm
- Warranty
- 10 Year
View on Amazon: EVGA SuperNOVA G3 1000W Gold PSU (paid link)
The EVGA SuperNOVA G3 is a 1000W fully modular power supply built for high-demand setups. It delivers 80 PLUS Gold certified efficiency, reaching up to 92 percent under typical loads. At 5.91 inches long, it fits tight chassis spaces while housing a 130mm hydraulic dynamic bearing fan. It suits you if you need high wattage and a 10-year warranty in a compact footprint.
Pros
- Compact 5.91-inch length
- 10-year warranty
- 80 PLUS Gold efficiency up to 92 percent
- 130mm hydraulic dynamic bearing fan with Eco Mode
- Fully modular cable design
Cons
- No ATX 3.0 or PCIe 5.0 standards listed
- Heavier unit at 6.1 pounds
Good fit if
- You need 1000W of power in a compact 5.91-inch enclosure.
- You want fully modular cabling with a 10-year warranty.
- You operate systems in environments up to 50° C.
Skip if
- You require native PCIe 5.0 or 12V-2x6 power connections.
- You want a higher Platinum or Titanium efficiency rating.
Verdict: EVGA SuperNOVA G3 1000W Gold Power Supply delivers high wattage and modularity in a short 5.91-inch chassis supported by a 10-year warranty.
EVGA 1000W G6 Gold Modular Power Supply
Best for: compact ATX builds needing 1000W Gold power
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Warranty
- 10 Year
- Dimensions
- 5.5 × 5.91 × 3.4 inches
View on Amazon: EVGA 1000W G6 Gold Modular Power Supply (paid link)
The EVGA G6 1000W Gold Fully Modular PSU supplies 1000W of power with 80 PLUS Gold certification for at least 91% efficiency under typical loads. It features a fully modular cable design and a compact 5.5-inch casing that helps maximize chassis clearance. Equipped with all-Japanese capacitors, full-bridge LLC DC-DC topology, an FDB fan with Eco mode, and a 10-year warranty, it suits you if you need reliable high-capacity power in standard cases.
Pros
- 80 PLUS Gold certified with 91% typical efficiency
- Compact 5.5-inch casing fits tight chassis spaces
- 100% Japanese capacitors with full-bridge LLC and DC-DC design
- Fluid dynamic bearing fan paired with EVGA ECO mode
- 10-year manufacturer warranty
Cons
- Efficiency reaches Gold tier rather than Platinum or Titanium
- Lacks listed native ATX 3.0 or PCIe 5.0 12V-2x6 connectivity
Good fit if
- You need 1000W capacity inside a chassis with tight PSU clearance.
- You prefer fully modular cabling with all-Japanese internal capacitors.
- You want quiet cooling backed by an FDB fan and ECO zero-RPM mode.
Skip if
- You require 80 PLUS Platinum or Titanium efficiency.
- You need built-in ATX 3.0 or PCIe 5.0 high-power connectors.
Verdict: EVGA G6 1000W Gold Fully Modular PSU delivers dependable 1000W output in a short 5.5-inch frame backed by a 10-year warranty. It offers tight voltage regulation and quiet thermal control for power-dense setups.
Thermaltake Toughpower GF3 1000W ATX 3.1
Best for: modern high-power PCIe 5.1 graphics setups
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Full Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
View on Amazon: Thermaltake Toughpower GF3 1000W ATX 3.1 (paid link)
The Thermaltake Toughpower GF3 1000W ATX 3.1 is an 80 Plus Gold certified power supply built for modern graphics setups. It adheres to ATX 3.1 standards and features a native PCIe 5.1 12V-2x6 cable delivering up to 600W. A 135mm cooling fan maintains internal temperatures, while fully modular flat cables simplify routing. This unit suits you if you need dedicated high-wattage delivery for newer graphics cards.
Pros
- Native PCIe 5.1 12V-2x6 cable delivers up to 600W
- Built to ATX 3.1 specifications for handling power excursions
- Fully modular flat cables with color-matched connectors
- Dual-colored connector provides visual check for proper seating
- 135mm fan handles internal cooling
Cons
- Rated at 80 Plus Gold rather than Platinum or Titanium
- At 6.3 inches long, it requires more enclosure clearance than compact units
Good fit if
- You need a native 600W PCIe 5.1 12V-2x6 connection for your GPU
- You prefer flat, fully modular cables to simplify case routing
- You want visual confirmation when seating your high-draw power connector
Skip if
- You require 80 Plus Platinum or Titanium efficiency levels
- You need a power supply shorter than 6.3 inches for a tight case
Verdict: Thermaltake Toughpower GF3 1000W ATX 3.1 delivers reliable ATX 3.1 excursion handling and native 600W GPU connectivity in a modular package. It provides solid 80 Plus Gold efficiency for high-demand builds.
Corsair RM1000x Shift 1000W ATX 3.1 PSU
Best for: modern ATX 3.1 PC builds
- Size
- 1000W
- Wattage
- 1000W
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Version
- PCIe 5.1
- Dimensions
- 7.09 × 5.91 × 5.08 inches
View on Amazon: Corsair RM1000x Shift 1000W ATX 3.1 PSU (paid link)
The Corsair RM1000x Shift is a 1000W fully modular ATX power supply built to the ATX 3.1 and PCIe 5.1 standards. It uses Corsair Type 5 Gen 1 micro-fit connectors and features 100% 105°C-rated Japanese electrolytic capacitors. It also includes Zero RPM fan mode for low and medium loads alongside Modern Standby support. You will find it well suited if you need high wattage and modern platform compliance.
Pros
- Compliant with Intel ATX 3.1 and PCIe 5.1 standards
- Zero RPM fan mode shuts off fan under low and medium loads
- 100% 105°C-rated Japanese electrolytic capacitors
- Corsair Type 5 Gen 1 micro-fit modular connectors save internal space
Cons
- 7.09-inch length requires clearance in smaller cases
- Uses Type 5 micro-fit cables that are not interchangeable with standard modular cables
Good fit if
- You want native ATX 3.1 and PCIe 5.1 hardware compatibility.
- You prefer a fan that stops spinning during low and medium loads.
- You have a PC case that accommodates a 7.09-inch power supply.
Skip if
- You need a compact supply under 7.09 inches long.
- You plan to use standard-size modular cables instead of micro-fit cables.
Verdict: Corsair RM1000x Shift 1000W ATX 3.1 PSU delivers 1000W of fully modular power with Type 5 micro-fit connections and Japanese capacitors. It provides native ATX 3.1 compliance and silent low-load operation for your build.
Seasonic Vertex 1000W Gold Power Supply
Best for: Quiet ATX 3.0 builds needing 1000W
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR
View on Amazon: Seasonic Vertex 1000W Gold Power Supply (paid link)
The Seasonic Vertex 1000W Gold Power Supply is an ATX unit built for high-demand modern desktop systems. It provides 1000 watts of power with 80 Plus Gold efficiency and full modularity to keep your case organized. The unit complies with ATX 3.0 standards and includes a dedicated 12VHPWR cable for current graphics cards. Cooling is handled by a 135mm fluid dynamic bearing fan with hybrid silent control, making it suitable for quiet builds.
Pros
- Fully modular cabling simplifies case management
- Includes a dedicated 12VHPWR cable for PCIe 5.0 hardware
- 135mm fluid dynamic bearing fan with hybrid silent control
- 80 Plus Gold certified efficiency
Cons
- Follows ATX 3.0 rather than the newer ATX 3.1 standard
- Gold efficiency rating sits below Platinum and Titanium alternatives
Good fit if
- You need a 1000W power supply with a native 12VHPWR cable for your GPU.
- You want fully modular cables to keep your build tidy.
- You prefer a 135mm fluid dynamic bearing fan with a zero-RPM silent mode.
Skip if
- You require an 80 Plus Platinum or Titanium efficiency rating.
- You specifically need a unit that adheres to ATX 3.1 specifications.
Verdict: Seasonic Vertex 1000W Gold Power Supply delivers reliable 1000-watt output with full modularity and ATX 3.0 support. It is a solid choice if you want quiet cooling and native 12VHPWR connectivity.
Vetroo 1000W White Power Supply
Best for: white-themed builds needing ATX 3.1 support
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Full Modular
- ATX Version
- ATX 3.1
- PCIe Version
- PCIe 5.1
View on Amazon: Vetroo 1000W White Power Supply (paid link)
The Vetroo 1000W White Power Supply is an ATX-standard unit designed for modern high-draw systems. It delivers 1000W of capacity with an 80 Plus Gold efficiency certification and 105°C capacitors. The fully modular layout lets you attach only needed cables, reducing clutter in your case. With compliance for ATX 3.1 and PCIe 5.1 standards, it suits you if you need up-to-date power delivery for recent hardware inside a white-themed build.
Pros
- Compliant with ATX 3.1 and PCIe 5.1 standards
- Fully modular cabling simplifies cable management
- 80 Plus Gold efficiency rating
- Built with 105°C rated capacitors
Cons
- Rated for 80 Plus Gold rather than Platinum or Titanium efficiency
- White chassis and cables may not match dark-themed builds
Good fit if
- You are building a white-themed system requiring 1000W of power.
- You need ATX 3.1 support and native PCIe 5.1 compatibility.
- You want fully modular cables to avoid unnecessary clutter.
Skip if
- You prefer a standard black finish for a dark PC build.
- You want higher Platinum or Titanium efficiency ratings.
Verdict: Vetroo 1000W White ATX 3.1 Power Supply provides modern ATX 3.1 and PCIe 5.1 support in a clean white, fully modular housing. It is a solid 1000W option if you need 80 Plus Gold efficiency for color-matched components.
Apevia Prestige 1000W ATX 3.0 Power Supply
Best for: budget-conscious gaming rigs needing PCIe 5.0 power
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80+ Gold
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR, 6+2 pin
- Fan Size
- 135mm
View on Amazon: Apevia Prestige 1000W ATX 3.0 Power Supply (paid link)
The Apevia Prestige 1000W is an ATX 3.0 power supply designed for gaming setups. You get an 80 Plus Gold efficiency rating, a single +12V rail with DC-to-DC conversion, and a native 12+4 pin PCIe 5.0 12VHPWR connector for current graphics cards. Cooling relies on an auto-thermally controlled 135mm fan. It suits you if you need high wattage and modern GPU power delivery without paying for premium extras.
Pros
- Native PCIe 5.0 12VHPWR 12+4 pin connector
- 80 Plus Gold efficiency certification
- 135mm thermally controlled cooling fan
- Single +12V rail with DC-to-DC converter design
Cons
- No modular cabling specified in data
- Protections limited to OVP, OPP, and SCP without OTP or UVP listed
Good fit if
- You need a dedicated 12VHPWR connector for a PCIe 5.0 graphics card.
- You want 1000W capacity with 80 Plus Gold efficiency on a single 12V rail.
Skip if
- You need modular cables for clean wire routing.
- You require full protection coverage including over-temperature protection.
Verdict: Apevia Prestige 1000W ATX 3.0 Power Supply provides high output and native PCIe 5.0 connectivity for modern gaming rigs. It handles core power needs efficiently, though it lacks modular cabling and an exhaustive protection suite.
be quiet! Dark Power 13 1000W Titanium
Best for: ultra-efficient builds needing switchable 12V rails
- Size
- 1000W
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Titanium
- ATX Version
- ATX 3.1, ATX 3.0
- PCIe Connector Type
- 6+2 pin
- Dimensions
- 6.89 × 5.91 × 3.39 inches
View on Amazon: be quiet! Dark Power 13 1000W Titanium (paid link)
The be quiet! Dark Power 13 delivers 1000W of power with 80 PLUS Titanium efficiency reaching up to 95.2%. It features ATX 3.1 compatibility, native PCIe 5.0 support, and an integrated frameless Silent Wings fan. You can use the included overclocking key to toggle between four independent 12V rails and a single massive 12V rail, giving you flexible power delivery for demanding graphics hardware.
Pros
- 80 PLUS Titanium efficiency rated up to 95.2%
- Overclocking key toggles between four 12V rails and one massive 12V rail
- Frameless Silent Wings fan with mesh funnel air inlet
- Supports ATX 3.1 and PCIe 5.0 hardware alongside 6+2 pin connectors
Cons
- Housing length of 6.89 inches is longer than standard ATX power supplies
- Overclocking switch requires physical key installation to toggle rails
Good fit if
- You want 80 PLUS Titanium efficiency up to 95.2%.
- You need the ability to switch between multi-rail and single-rail 12V modes.
- You are powering PCIe 5.0 graphics cards or 6+2 pin GPUs.
Skip if
- You have a compact PC case that cannot accommodate a 6.89-inch unit.
- You prefer a fixed single-rail power supply without manual rail toggling.
Verdict: be quiet! Dark Power 13 1000W Titanium delivers 80 PLUS Titanium efficiency alongside flexible single and multi-rail 12V power delivery.
Specifications side by side
| Spec | Corsair SF 1000W Fully Modular PSU | Corsair RM1000x 1000W ATX 3.1 PSU | Corsair RM1000e 1000W ATX Power Supply | Corsair RM1000x Shift 1000W Power Supply | EVGA Supernova 1000 P2 Platinum Power Supply | EVGA 1000 GQ 1000W Semi-Modular PSU | EVGA SuperNOVA 1000W Titanium PSU | EVGA SuperNOVA G3 1000W Gold PSU | EVGA 1000W G6 Gold Modular Power Supply | Thermaltake Toughpower GF3 1000W ATX 3.1 | Corsair RM1000x Shift 1000W ATX 3.1 PSU | Seasonic Vertex 1000W Gold Power Supply | Vetroo 1000W White Power Supply | Apevia Prestige 1000W ATX 3.0 Power Supply | be quiet! Dark Power 13 1000W Titanium |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage | 1000 Watts | 1000W | 1000 Watt | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W |
| Efficiency Rating | 80 Plus | Cybenetics Gold | 80 PLUS Gold | 80 Plus Gold | 80 PLUS Platinum | 80 PLUS Gold | 80 PLUS Titanium | 80 Plus Gold | 80 Plus Gold | 80 Plus Gold | not specified | 80+ Gold | 80 Plus Gold | 80+ Gold | 80 PLUS Titanium |
| Modularity | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Semi Modular | Fully Modular | Fully Modular | Fully Modular | Full Modular | Fully Modular | Fully Modular | Full Modular | not specified | not specified |
| ATX Version | not specified | ATX 3.1 | not specified | ATX 3.0 | not specified | not specified | not specified | not specified | not specified | ATX 3.1 | ATX 3.1 | ATX 3.0 | ATX 3.1 | ATX 3.0 | ATX 3.1, ATX 3.0 |
| PCIe Connector Type | not specified | 12V-2x6 | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 12V-2x6 | not specified | 12VHPWR | not specified | 12VHPWR, 6+2 pin | 6+2 pin |
| Fan Size | not specified | not specified | not specified | not specified | 140mm | 135mm | 140mm | 130mm | not specified | 135mm | not specified | 135mm | not specified | 135mm | not specified |
| Warranty | not specified | not specified | not specified | not specified | 10 Year | 5 Year | 10 Year | 10 Year | 10 Year | not specified | not specified | 12 Year | not specified | not specified | not specified |
| Form Factor | not specified | ATX | ATX | ATX | not specified | not specified | not specified | not specified | not specified | ATX | ATX | ATX | ATX | ATX | ATX |
| PCIe Version | not specified | PCIe 5.1 | not specified | not specified | not specified | not specified | not specified | not specified | not specified | PCIe 5.1 | PCIe 5.1 | not specified | PCIe 5.1 | not specified | not specified |
| Recommended Use | 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 | Gaming | not specified |
| Connector | not specified | 12V-2x6 Connector | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 12V-2x6 Connector | 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 | not specified | not specified | not specified | not specified | Active PFC | not specified |
| Size | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W |
| Dimensions | 7.6 × 9.4 × 11.3 inches | 2.3 × 3.39 × 5.91 inches | 5.91 × 5.51 × 3.39 inches | 7.09 × 5.91 × 5.08 inches | 7.8 × 6 × 3.3 inches | 7.09 × 5.91 × 3.35 inches | 7.09 × 5.91 × 3.35 inches | 5.91 × 5.91 × 3.35 inches | 5.5 × 5.91 × 3.4 inches | 6.3 × 5.9 × 3.4 inches | 7.09 × 5.91 × 5.08 inches | 4.53 × 2.69 × 1.59 inches | 5.9 × 5.5 × 3.4 inches | 5.91 × 3.35 × 6.22 inches | 6.89 × 5.91 × 3.39 inches |
| Weight | 2.31 pounds | 6.88 pounds | 3.66 pounds | 4.2 pounds | 4.41 pounds | 7 pounds | 10.2 pounds | 6.1 pounds | 6.6 pounds | 3.95 pounds | 4.2 pounds | 4.34 pounds | not specified | 4.96 pounds | not specified |
| Color | Black | Black | Black | Black | not specified | Black | not specified | not specified | not specified | Black | Black | not specified | 1000W-White | not specified | not specified |
| Model | not specified | not specified | not specified | not specified | 220-P2-1000-XR | 210-GQ-1000-V1 | 220-T2-1000-X1 | 220-G3-1000-X1 | 220-G6-1000-X1 | PS-TPD-1000FNFAGU-4 | CP-9020253-NA | VERTEX GX-1000 | 1000G5 | ATX-PR1000W PCIE5.0 | BN661 |
Is a 1000W Power Supply Worth It?
A 1000W rating supplies dedicated output for high-demand desktop configurations. In daily operation, this capacity supports power-dense setups running components that require dual EPS12V connections or native 600W graphics power. Units in this category manage power excursions and heavy multi-rail or single-rail 12V delivery. If you run a high-power gaming rig or demanding hardware, a 1000W power supply delivers sufficient total output to keep each component running within manufacturer hardware protections.
Worth it if
- You build a gaming rig or desktop configuration that requires up to 600W of dedicated graphics power.
- You run power-dense hardware configurations that require dual EPS12V connections.
Skip it if
- You use entry-level or mid-range components that do not require 1000 watts of total delivery.
- You do not need native 600W graphics cables or dual EPS12V support.
If you need off-grid AC power instead of an internal PC supply, review a 1000W generator for continuous running wattage and total harmonic distortion specs.
How We Picked 1000W Power Supplies
To find 1000W power supplies for your build, we evaluated published specifications from Amazon listings. A product qualified when the listing stated a 1000W capacity in its title or feature list. We do not physically test hardware. Instead, we rely strictly on published manufacturer specifications, showing only one variant per product family.
We organized these 15 picks to help you choose the right model for 2026. Products in stock appear first, then by Amazon sales rank (better-selling products first). We also examined published specifications, including modular cabling, 80 Plus efficiency ratings, and ATX 3.1 support, so you can easily verify hardware compatibility.
How to Choose the Right 1000W PSU
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Compare 80 Plus Efficiency
Examine the 80 Plus efficiency certification when you evaluate a 1000W power supply. Standard systems operate efficiently on an 80 Plus Gold rating, which controls energy loss during normal computing tasks. For heavy continuous rendering or sustained processing, step up to Platinum or Titanium units to minimize electrical waste and interior thermal buildup. For example, the EVGA SuperNOVA 1000W Titanium provides top-tier Titanium efficiency for high-demand desktop configurations. Compare the efficiency badges across candidate models to match your operational hours and daily power expectations.
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Check Manufacturer Warranty Length
Review the warranty coverage published in each power supply specification table before buying. Coverage duration in the 1000W class typically spans between five and ten years. A longer warranty indicates higher manufacturer confidence in internal component durability, such as capacitor lifespan under sustained loads. For instance, the EVGA SuperNOVA G3 1000W Gold PSU includes a 10-year warranty, while other models provide five years. If you intend to reuse your power supply across several major hardware upgrades over time, choose a model that lists a 10-year protection term.
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Examine Modular Interface Placement
Check the orientation and position of the modular connection interface on the casing. Most standard power supplies locate plug sockets on the rear wall facing your case storage cages. Certain modern units mount modular sockets directly onto the side panel. For example, the Corsair RM1000x Shift 1000W Power Supply features a side-facing modular panel design. This layout allows direct cable access without reaching deep into lower PSU tunnels, provided your chassis has dedicated clearance behind the side door. Confirm your case clearance width before selecting a side-oriented design.
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Match Casing Color Finish
Review the chassis color in the specification list if your PC case has glass viewing panels. Most 1000W units feature a standard black finish designed to blend into dark compartments. If your build uses white components, cables, or fans, choose a factory white unit to maintain consistent styling. The Vetroo 1000W White Power Supply offers a dedicated white housing for color-matched builds. Selecting the correct exterior color from the published specifications eliminates the need to repaint the unit or purchase aftermarket cosmetic covers for your installation.
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Verify Dual EPS12V Connections
Check motherboard power connections when pairing a 1000W power supply with high-draw desktop processors. High-end motherboards often require two 8-pin EPS12V power plugs to supply sufficient current for multi-core processing under sustained workloads. A power supply with dual EPS12V connectors ensures stable delivery directly to your CPU socket without requiring adapter splitters. For example, the Corsair RM1000e 1000W ATX Power Supply lists dual EPS12V support for standard high-power systems. Check your motherboard manual and match its required CPU header count against the cable specifications of the unit.
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Check Active Power Factor
Review the power factor correction specification when choosing a power supply for reliable utility line handling. Units with Active PFC automatically adjust AC input variations, which stabilizes incoming alternating current before stepping it down for components. This feature reduces electrical harmonic distortion and maximizes overall grid efficiency in home and office workstations. For example, the Apevia Prestige 1000W ATX 3.0 Power Supply includes Active PFC in its published electrical specifications. Confirm that your selected supply includes Active PFC to ensure clean power handling from wall outlets.
Frequently asked questions
What is the difference between fully modular and semi-modular 1000W power supplies?
Fully modular units allow you to detach every cable from the chassis, while semi-modular units have essential cables hardwired directly to the internal board. For example, the EVGA 1000 GQ uses semi-modular wiring, keeping primary connections fixed while offering detachable peripheral leads. Models like the EVGA G6 provide fully modular designs, enabling you to connect only the specific runs you need to reduce interior clutter.
How do side-mounted cable connections work on compatible power supplies?
Side-mounted panels place modular connectors on the side face of the power supply rather than the rear edge. The Corsair RM1000x Shift uses this layout alongside Type 5 micro-fit connectors. This design directs cables into your chassis side chamber. You need a computer case with dedicated side-panel clearance behind the power supply compartment to route and plug these cables properly without bending restrictions.
Which 1000W models offer 80 Plus Titanium efficiency?
Units featuring an 80 Plus Titanium rating on this list include the EVGA SuperNOVA 1000W Titanium and the be quiet! Dark Power 13. The EVGA unit features a fully modular interface and comprehensive hardware protections inside a 7.09-inch housing. The be quiet! Dark Power 13 provides ATX 3.1 compliance and switchable single and multi-rail 12V delivery to optimize power distribution for sensitive components.
What is the shortest 1000W ATX power supply available?
The EVGA 1000W G6 measures 5.5 inches in length, making it one of the most compact ATX options on this list. It delivers 1000 watts through fully modular cabling within this reduced chassis footprint. A shorter case depth leaves more space in your lower compartment for cable storage, which is practical for compact desktop enclosures where standard 7-inch power supplies might crowd storage drive bays.
What is the difference between 12VHPWR and 12V-2x6 connectors on modern power supplies?
Both connectors supply power to modern graphics cards, but they correspond to different revisions of the ATX standard. The Seasonic Vertex 1000W includes native 12VHPWR connectivity built to ATX 3.0 specifications. Newer units, such as the Thermaltake Toughpower GF3, incorporate updated 12V-2x6 connectors meeting ATX 3.1 and PCIe 5.1 requirements. These revised connectors deliver up to 600W directly to compatible graphics cards without requiring external adapters.
Can you find a non-modular 1000W power supply for gaming?
Yes, the Apevia Prestige 1000W provides a fixed-cable configuration targeted at gaming rigs. It includes native PCIe 5.0 support, active power factor correction, and an 80 Plus Gold efficiency certification. Because non-modular designs have all cables permanently attached, you cannot detach unused leads. You will need sufficient chassis basement space to bundle and store excess wiring that your specific hardware configuration does not utilize.
Are there color-specific 1000W power supplies for themed PC builds?
Most 1000W units feature black enclosures, but color-specific alternatives exist for customized aesthetics. The Vetroo 1000W comes in a dedicated white finish, denoted as 1000W-White in its hardware specifications. Alongside its color scheme, it delivers fully modular cables, 80 Plus Gold efficiency, and ATX 3.1 compliance with PCIe 5.1 compatibility. This allows you to match internal case aesthetics without sacrificing modern hardware standards.