6 Best Alternatives to the EVGA SuperNOVA G3 1000W Gold (2026)
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The EVGA SuperNOVA G3 1000W Gold PSU delivers solid 80 PLUS Gold efficiency and 1000W output backed by a 10-year warranty. If you are searching for evga supernova 220 g3 1000 x1 alternatives, you might want a different form factor or modern connector standards. This unit uses a traditional ATX design without native PCIe 5.0 support, which may not suit newer graphics cards. Its 130mm fan and fully modular cabling offer quiet operation and clean cable management for high-wattage builds.
We selected these alternatives because their specifications overlap with the original power supply. Each option provides 1000W output and 80 PLUS Gold efficiency ratings. Some models include ATX 3.0 or ATX 3.1 compliance for direct GPU connectivity. Others offer different physical dimensions to fit smaller cases. You can choose based on your specific needs for modularity, warranty length, or connector type. All listed units maintain high reliability standards suitable for demanding desktop setups.
Comparing the top alternatives
EVGA SuperNOVA G3 1000W Gold PSU
The EVGA 1000 GT shares the same 1000W output and 80 PLUS Gold efficiency rating as the SuperNOVA G3. It also offers a fully modular design and a 10-year warranty. The primary difference is the physical dimensions. This unit measures 5.9 by 5.9 by 3.4 inches, making it slightly taller than the G3. It weighs 6.61 pounds, which is heavier than the original. You should choose this model if you prefer a traditional high-wattage build and prioritize reliability over modern connector standards. It fits users who want a dependable power supply without needing the latest ATX specifications.
EVGA 1000 GT 1000W Fully Modular PSU
The Seasonic Focus V3 1000W Gold provides 80 PLUS Gold efficiency and a fully modular design similar to the EVGA SuperNOVA G3. It also carries a 10-year warranty. The key advantage is its ATX 3.0 standard, which includes native PCIe 5.0 connectivity. This unit has a compact 140 mm footprint, measuring 5.9 by 3.4 by 5.5 inches. It weighs 6.64 pounds. You should pick this power supply for compact ATX builds that need modern PCIe 5.0 support. It offers reliable power delivery while fitting into cases where the original G3 might be too large or lack the necessary modern connectors for new graphics cards.
Seasonic Focus V3 1000W Gold ATX Power Supply
The ASUS ROG Strix Aura Edition matches the EVGA SuperNOVA G3 with 1000W output, 80 PLUS Gold efficiency, and a fully modular design. It also includes a 10-year warranty. However, it is significantly longer at 7.08 inches, compared to the G3. It measures 5.9 by 3.3 by 7.08 inches and weighs 6.6 pounds. This unit supports ATX 3.0 and features robust heatsinks with quiet fan profiles. You should choose this model for roomy builds that can accommodate its extra length. It serves as a dependable upgrade if you need ATX 3.0 modular power and have the case space for a larger power supply unit.
ASUS ROG Strix 1000W Gold Aura Edition
The ASUS TUF Gaming 1000W Gold White offers 1000W output, 80 PLUS Gold efficiency, and a fully modular design. It matches the EVGA SuperNOVA G3 warranty length at 10 years. This unit supports modern ATX 3.1 power delivery with a 600-watt 16-pin PCIe cable. It measures 5.9 by 3.4 by 5.9 inches and weighs 5.5 pounds, making it lighter than the original. You should pick this power supply for white-themed gaming builds. It is a solid choice if you need a reliable 1000-watt unit in white. The modern power delivery standards make it suitable for newer graphics cards requiring high transient power.
ASUS TUF Gaming 1000W Gold White
The MSI MPG 1000W Gold Modular Power Supply provides 1000W output, 80 PLUS Gold efficiency, and a fully modular design. It supports ATX 3.1 and PCIe 5.1 standards, which the original G3 lacks. It uses Japanese capacitors and includes a 12V-2x6 connector. This unit is much larger, measuring 9.5 by 5.4 by 11.5 inches and weighing 8.82 pounds. It carries a 10-year warranty. You should choose this model for modern ATX 3.1 high-end gaming builds. It serves as a dependable upgrade for graphics-heavy desktops that require the latest connector standards. The larger size may limit compatibility with smaller cases compared to the original EVGA unit.
MSI 1000W Fully Modular Gold PSU
The MSI MAG A750GLS 750W Gold ATX 3.1 differs from the EVGA SuperNOVA G3 by offering lower wattage. It provides 750W output with 80 PLUS Gold efficiency and a fully modular design. It supports ATX 3.1 and PCIe 5.1 standards with a 12V-2x6 connector. This unit measures 9.25 by 5.08 by 11.5 inches and weighs 28.7 pounds. It carries a 10-year warranty. You should pick this power supply for compact builds needing PCIe 5.1 support. It is ideal for users who do not require 1000W output but want modern connector compatibility. The higher wattage of the original G3 makes it better for more demanding systems.
MSI MAG 750W Gold Modular Power Supply
The MSI MAG A750GLS 750W Gold ATX 3.1 differs from the EVGA SuperNOVA G3 by offering lower wattage. It provides 750W output with 80 PLUS Gold efficiency and a fully modular design. It supports ATX 3.1 and PCIe 5.1 standards with a 12V-2x6 connector. This unit measures 9.25 by 5.08 by 11.5 inches and weighs 28.7 pounds. It carries a 10-year warranty. You should pick this power supply for compact builds needing PCIe 5.1 support. It is ideal for users who do not require 1000W output but want modern connector compatibility. The higher wattage of the original G3 makes it better for more demanding systems.
Quick picks
Our 7 picks
EVGA SuperNOVA G3 1000W Gold PSU
Best for: high-wattage builds needing fully modular cabling
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Fan Size
- 130mm
- Warranty
- 10 Year
- Form Factor
- Compact
View on Amazon: EVGA SuperNOVA G3 1000W Gold PSU Affiliate link
The EVGA SuperNOVA G3 1000W is a fully modular power supply delivering 1000 watts with 80 PLUS Gold efficiency. It features a compact 5.91-inch length, a 130mm hydraulic dynamic bearing fan with an Eco Mode switch, and an operating limit up to 50°C. Heavy-duty protections cover over-voltage, under-voltage, over-current, and short circuits. It suits you if you need reliable, high-wattage delivery in a standard chassis with minimal cable clutter.
Pros
- 80 PLUS Gold efficiency reaching up to 92% under typical loads
- 130mm hydraulic dynamic bearing fan with Eco Mode
- Fully modular cable design
- 10-year warranty coverage
Cons
- Lacks native ATX 3.0 or PCIe 5.0 connector specifications
- Over-temperature protection (OTP) is not listed among included safeguards
Good fit if
- You need 1000 watts of fully modular power for a high-demand build.
- You want a 130mm hydraulic dynamic bearing fan that supports Eco Mode operation.
- You prefer a 10-year warranty for long-term component security.
Skip if
- You need a power supply with documented ATX 3.0 or native PCIe 5.0 support.
- You operate hardware in ambient temperatures exceeding 50°C.
Verdict: EVGA SuperNOVA 1000W Gold Fully Modular PSU delivers solid 80 PLUS Gold efficiency and 1000W output backed by a 10-year warranty. Its fully modular cabling and 130mm HDB fan make it a dependable foundation for demanding setups.
EVGA 1000 GT 1000W Fully Modular PSU
Best for: Traditional high-wattage builds
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Warranty
- 10 Year
- Form Factor
- Compact
- Dimensions
- 3.4 × 5.9 × 5.9 inches
View on Amazon: EVGA 1000 GT 1000W Fully Modular PSU Affiliate link
The EVGA 1000 GT delivers 1000W of power with 80 Plus Gold efficiency. It features a fully modular design to manage cables and a fluid dynamic bearing fan for quiet operation. Japanese capacitors and multiple protections ensure stability. This unit suits users seeking reliable performance with a 10-year warranty.
Pros
- 1000W output capacity
- 80 Plus Gold efficiency rating
- Fully modular cable design
- 10-year limited warranty
- Fluid dynamic bearing fan
Cons
- No ATX 3.0 or PCIe 5.0 native support
- Heavier build at 6.61 pounds
- Lacks digital display or monitoring
Good fit if
- You need 1000W for high-end builds
- You prefer quiet operation with ECO mode
- You want long-term warranty coverage
Skip if
- You require ATX 3.0 compatibility
- You need PCIe 5.0 connectors
- You want a lighter compact unit
Verdict: EVGA 1000W GT Gold PSU offers solid efficiency and quiet cooling for traditional high-power systems. It fits users who prioritize reliability and warranty length over modern connector standards.
Seasonic Focus V3 1000W Gold ATX Power Supply
Best for: compact ATX builds needing native PCIe 5.0
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Full-Modular
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR
- Fan Size
- 135 mm
View on Amazon: Seasonic Focus V3 1000W Gold ATX Power Supply Affiliate link
The Seasonic Focus V3 is a 1000W, 80 PLUS Gold power supply built for modern hardware. It gives you full modular cabling and native ATX 3.0 support with an included 16-pin 12VHPWR cable. Its compact 140 mm length frees up space inside tight PC enclosures, while a 135 mm fluid dynamic bearing fan handles cooling. This unit suits you if you want high wattage and current-generation graphics card connectivity in a shorter chassis.
Pros
- Native ATX 3.0 support with 16-pin PCIe Gen 5 (12VHPWR) cable
- Compact 140 mm length fits smaller ATX spaces
- Fully modular cable design
- 135 mm fluid dynamic bearing fan
- 10-year warranty
Cons
- 80 PLUS Gold rating rather than Platinum efficiency
- Standard ATX form factor does not fit dedicated SFX cases
Good fit if
- You need a native 12VHPWR connector for a PCIe 5.0 graphics card.
- You want a short 140 mm footprint to maximize cable management space.
- You prefer fully modular cables with long-term 10-year warranty coverage.
Skip if
- You require an efficiency rating higher than 80 PLUS Gold.
- You need a small-form-factor SFX power supply for a mini-ITX case.
Verdict: Seasonic Focus V3 1000W Gold ATX 3.0 PSU delivers high capacity and modern PCIe Gen 5 connectivity in a compact 140 mm footprint. It provides reliable 80 PLUS Gold power delivery backed by a 10-year warranty for your build.
ASUS ROG Strix 1000W Gold Aura Edition
Best for: roomy builds needing ATX 3.0 modular power
- Wattage
- 1000W
- Efficiency Rating
- 80+ Gold Certified
- Modularity
- Fully Modular
- ATX Version
- ATX 3.0
- Warranty
- 10-Year
- Dimensions
- 7.08 × 5.9 × 3.3 inches
View on Amazon: ASUS ROG Strix 1000W Gold Aura Edition Affiliate link
The ASUS ROG Strix Aura Edition 1000W Gold gives you a fully modular ATX 3.0 power supply built inside an aluminum chassis that doubles as a heatsink. It delivers 1000 watts of power with 80 Plus Gold efficiency and dual ball bearing cooling. You get a dedicated 0dB quiet mode for light loads and a 10-year warranty. It fits your build if you want modern ATX 3.0 power delivery in a spacious standard case.
Pros
- Native ATX 3.0 power delivery standard
- Aluminum casing coupled to internal components acts as a heatsink
- Axial-tech fan with dual ball bearings and 0dB mode
- 10-year manufacturer warranty
Cons
- Long 7.08-inch housing limits fit in compact chassis
- Heavier unit at 6.6 pounds
Good fit if
- You need native ATX 3.0 support with 1000 watts of fully modular power.
- You want zero-fan noise during low loads via 0dB technology.
- You have a PC case that easily clears a 7.08-inch power supply depth.
Skip if
- You have a compact case with limited depth for longer power supplies.
- You need a lightweight unit for a portable PC enclosure.
Verdict: ASUS ROG Strix Aura Edition 1000W Gold delivers ATX 3.0 power, robust heatsinks, and quiet fan profiles. It serves as a dependable upgrade if your case accommodates its 7.08-inch length.
ASUS TUF Gaming 1000W Gold White
Best for: white-themed gaming builds needing ATX 3.1 power
- Wattage
- 1000W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 16-pin PCIe
- Warranty
- 10 Year
View on Amazon: ASUS TUF Gaming 1000W Gold White Affiliate link
The ASUS TUF Gaming 1000W Gold White delivers 1000 watts of fully modular power with 80 Plus Gold efficiency. Unlike older platforms, it features ATX 3.1 compliance and includes a 16-pin PCIe cable delivering up to 600 watts for modern graphics cards. It measures 5.9 inches long and carries a 10-year warranty. This unit suits you if you need modern high-wattage power in an all-white enclosure.
Pros
- ATX 3.1 compliant with native 16-pin PCIe cable supporting up to 600W
- Compact 5.9-inch length with fully modular cabling
- 10-year warranty backed by dual ball fan bearings
- Protective PCB coating against moisture, dust, and temperature extremes
Cons
- White finish will not match standard black chassis builds
- Efficiency is 80 Plus Gold rather than Platinum or Titanium
Good fit if
- You need ATX 3.1 support with a dedicated 16-pin PCIe connector for high-power GPUs.
- You are assembling a white-themed desktop PC.
- You need a compact 5.9-inch PSU depth for tight case clearance.
Skip if
- You prefer a black casing to match standard PC components.
- You require higher than 80 Plus Gold efficiency.
Verdict: ASUS TUF Gaming 1000W Gold White provides modern ATX 3.1 power delivery with a 600-watt 16-pin PCIe cable and a 10-year warranty. It is a solid choice if you need a reliable 1000-watt unit in white.
MSI 1000W Fully Modular Gold PSU
Best for: modern ATX 3.1 high-end gaming builds
- Wattage
- 1000W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI 1000W Fully Modular Gold PSU Affiliate link
The MSI MPG 1000W Gold Modular Power Supply delivers 1000 watts with 80 Plus Gold efficiency. Unlike older platforms, it meets ATX 3.1 and PCIe 5.1 standards with dual 12V-2x6 power connections. It features 100% Japanese 105°C capacitors, full modular cabling, and a 10-year warranty. You will find it suits modern gaming setups that require reliable high-wattage power alongside native next-generation graphics card support.
Pros
- ATX 3.1 and PCIe 5.1 compliant with dual 12V-2x6 connectors
- 100% Japanese 105°C capacitors
- 10-year manufacturer warranty
- Fully modular cable design
Cons
- 80 Plus Gold efficiency rather than Platinum or Titanium
- Only available in black
Good fit if
- You need native 12V-2x6 power connections for modern graphics cards.
- You want Japanese 105°C capacitors backed by a 10-year warranty.
Skip if
- You prefer higher 80 Plus Platinum or Titanium efficiency levels.
- You need a white power supply to match your build theme.
Verdict: MSI MPG 1000W Gold Modular Power Supply gives you modern ATX 3.1 and PCIe 5.1 compatibility backed by Japanese capacitors and a 10-year warranty. It serves as a dependable upgrade for graphics-heavy desktop builds.
MSI MAG 750W Gold Modular Power Supply
Best for: Compact builds needing PCIe 5.1 support
- Wattage
- 750 W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 135 mm
View on Amazon: MSI MAG 750W Gold Modular Power Supply Affiliate link
The MSI MAG A750GLS is a fully modular 750W power supply with 80 Plus Gold efficiency. It features a compact 11.5-inch length and supports ATX 3.1 and PCIe 5.1 standards. A native 12V-2x6 connector handles up to 600W for modern GPUs. The 135mm FDB fan ensures quiet operation. This unit suits builders needing high efficiency in a smaller form factor.
Pros
- 80 Plus Gold efficiency up to 90%
- Compact 11.5-inch length for easy fitting
- Native 12V-2x6 connector for PCIe 5.1 GPUs
- 10-year warranty coverage
Cons
- 750W output is lower than the 1000W alternatives
- Heavier at 28.7 pounds compared to peers
- Limited to 750W capacity for high-end builds
Good fit if
- You need a compact PSU for smaller cases
- You require native PCIe 5.1 support
- You prioritize 80 Plus Gold efficiency
Skip if
- You need 1000W or higher capacity
- You prefer a standard 140mm+ length
- You want a lighter unit under 20 pounds
Verdict: MSI MAG A750GLS 750W Gold ATX 3.1 fits users who need a compact, efficient power supply with modern connector support but do not require 1000W output.
Specifications side by side
| Spec | EVGA SuperNOVA G3 1000W Gold PSU | EVGA 1000 GT 1000W Fully Modular PSU | Seasonic Focus V3 1000W Gold ATX Power Supply | ASUS ROG Strix 1000W Gold Aura Edition | ASUS TUF Gaming 1000W Gold White | MSI 1000W Fully Modular Gold PSU | MSI MAG 750W Gold Modular Power Supply |
|---|---|---|---|---|---|---|---|
| Wattage | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 750 W |
| Efficiency Rating | 80 Plus Gold | 80 Plus Gold | 80 PLUS Gold | 80+ Gold Certified | 80 Plus Gold | 80+ Gold | 80+ Gold |
| Modularity | Fully Modular | Fully Modular | Full-Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular |
| ATX Version | not stated | not stated | ATX 3.0 | ATX 3.0 | ATX 3.1 | ATX 3.1 | ATX 3.1 |
| PCIe Connector Type | not stated | not stated | 12VHPWR | not stated | 16-pin PCIe | 12V-2x6 | 12V-2x6 |
| Fan Size | 130mm | not stated | 135 mm | not stated | not stated | not stated | 135 mm |
| Warranty | 10 Year | 10 Year | 10 Year | 10-Year | 10 Year | 10 Year | 10 Year |
| Form Factor | Compact | Compact | ATX | ATX | not stated | ATX | Compact |
| PCIe Version | not stated | not stated | not stated | not stated | not stated | PCIe 5.1 | PCIe 5.1 |
| Recommended Use | not stated | not stated | not stated | not stated | Gaming | Gaming | Gaming |
| Connector | not stated | not stated | not stated | not stated | not stated | 12V-2x6 Connector | 12V-2x6 Connector |
| Size | 1000W | 1000W | 1000W | 1000W | 1000W | 1000W | 750 W - MAG (Pack of 5) |
| Dimensions | 5.91 × 5.91 × 3.35 inches | 3.4 × 5.9 × 5.9 inches | 5.5 × 5.9 × 3.4 inches | 7.08 × 5.9 × 3.3 inches | 5.9 × 5.9 × 3.4 inches | 11.5 × 9.5 × 5.4 inches | 11.5 × 9.25 × 5.08 inches |
| Weight | 6.1 pounds | 6.61 pounds | 6.64 pounds | 6.6 pounds | 5.5 pounds | 8.82 pounds | 28.7 pounds |
| Model | 220-G3-1000-X1 | 220-GT-1000-X1 | ATX3-FOCUS-GX-1000 | ROG-STRIX-1000G-AURA-GAMING | TUF-GAMING-1000G-WHITE | MPG A1000GS PCIE5 | MAG A750GLS PCIE5 |
| Color | not stated | not stated | not stated | not stated | WHITE | Black | Information Not Available |
If you plan a compact enclosure, you can compare fractal design core 1000 cases alternatives for clearance specifications.
Frequently asked questions
Does the Seasonic Focus V3 support ATX 3.0?
Yes, the Seasonic Focus V3 1000W Gold is built to the ATX 3.0 standard. This version includes native support for modern PCIe 5.0 connectors, which simplifies cabling for new graphics cards. It maintains full modularity and delivers reliable power in a compact 140 mm footprint suitable for various case sizes.
Is the ASUS ROG Strix 1000W Gold longer than the EVGA G3?
Yes, the ASUS ROG Strix Aura Edition measures 7.08 inches in length, while the EVGA SuperNOVA G3 is 5.91 inches long. The extra length allows for larger internal heatsinks and quiet fan profiles. You should verify your case can accommodate this additional depth before purchasing.
Which alternative offers the newest ATX standard?
The MSI MPG 1000W Gold and the ASUS TUF Gaming 1000W Gold White both support ATX 3.1. This is the latest standard among the listed options, ensuring compatibility with the newest PCIe 5.1 connectors. These units provide modern power delivery for high-end gaming builds requiring the latest specifications.
Can I use a 750W PSU instead of 1000W?
The MSI MAG A750GLS is a 750W option if you do not need the full 1000W output. It still features ATX 3.1 compliance and PCIe 5.1 support for modern components. This unit is ideal for compact builds where lower wattage is sufficient for your specific hardware configuration.
Do all alternatives include fully modular cabling?
Yes, every unit listed in this guide features fully modular cabling. This design allows you to connect only the cables you need, reducing clutter inside your case. All options, from the EVGA models to the ASUS and MSI units, share this feature for cleaner cable management.
Is the MSI 1000W Gold compatible with PCIe 5.1?
Yes, the MSI MPG 1000W Gold Modular Power Supply supports PCIe 5.1. It uses a 12V-2x6 connector to provide stable power to modern graphics cards. This unit also includes Japanese capacitors for enhanced reliability, making it a strong choice for graphics-heavy desktop builds.
What is the weight difference between the EVGA GT and the ASUS TUF?
The EVGA 1000 GT weighs 6.61 pounds, while the ASUS TUF Gaming 1000W Gold White weighs 5.5 pounds. The TUF model is lighter, which may matter for builds where every ounce counts. Both units offer similar 1000W outputs and 80 PLUS Gold efficiency ratings.