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- Best overall: CORSAIR RM1000x 1000W Fully Modular ATX Power Supply (Black)
- Best budget: Seasonic FOCUS GX-750 ATX 3.1 750W Fully Modular Power Supply
- Best premium: CORSAIR HX1200i 1200W Fully Modular ATX Power Supply (Black)
- Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply: Seasonic VERTEX GX-1000 ATX 3.1 1000W Fully Modular Power Supply
- The CORSAIR RM1000x and Seasonic FOCUS GX-1000 ATX 3.1 both offer 1,000 watts and 80 PLUS Gold efficiency.
- Choose CORSAIR RM1000x for a 140 mm fan and a straightforward fit in standard ATX builds.
- Choose Seasonic FOCUS GX-1000 ATX 3.1 for a native 12V-2×6 GPU connection and a 10-year warranty.
- A 750-watt or 850-watt model is a sensible match for many gaming PCs that do not need 1,000 watts.
- Compare case clearance, graphics-card connectors and warranty terms before choosing a Black Friday 2026 power supply.
The CORSAIR RM1000x and Seasonic FOCUS GX-1000 ATX 3.1 are both strong 1,000-watt, 80 PLUS Gold choices for a high-powered gaming PC. The main difference is practical: CORSAIR RM1000x emphasizes a large 140 mm fan and familiar ATX fit, while Seasonic FOCUS GX-1000 ATX 3.1 adds an updated 12V-2×6 GPU connection. The right pick depends on your graphics card, case and upgrade plans.
For this Black Friday 2026 buying guide, we researched and compared specs, reviews and owner feedback across seven CORSAIR and Seasonic power supplies. My pick for most people is the CORSAIR RM1000x for a standard build with room for future upgrades. A lower-wattage FOCUS or RMx model is a better match for a system that draws less power. Check the exact model’s cable layout and case fit before buying.
How We Picked
- Compared rated wattage with the needs of gaming and workstation builds.
- Prioritized 80 PLUS efficiency ratings and current GPU power connections.
- Reviewed modular cable layouts, fan dimensions and standard ATX fit.
- Considered warranty length, owner feedback and the practical value of added capacity.
- Included options at 750, 850, 1,000 and 1,200 watts for different system requirements.
Comparison Table
| Product | Best for | Rated output | Efficiency | GPU cable |
|---|---|---|---|---|
| CORSAIR RM1000x 1000W Fully Modular ATX Power Supply (Black) | High-end gaming builds | 1,000 W | 80 PLUS Gold | 12V-2×6 |
| Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply | Modern GPU builds | 1,000 W | 80 PLUS Gold | 12V-2×6 |
| CORSAIR RM850x 850W Fully Modular ATX Power Supply (Black) | Gaming builds below 1,000 watts | 850 W | 80 PLUS Gold | 12V-2×6 |
| Seasonic FOCUS GX-850 ATX 3.1 850W Fully Modular Power Supply | 850-watt modern GPU builds | 850 W | 80 PLUS Gold | 12V-2×6 |
| CORSAIR HX1200i 1200W Fully Modular ATX Power Supply (Black) | High-draw workstations | 1,200 W | 80 PLUS Platinum | 12V-2×6 |
| Seasonic VERTEX GX-1000 ATX 3.1 1000W Fully Modular Power Supply | Long-warranty high-end builds | 1,000 W | 80 PLUS Gold | 12V-2×6 |
| Seasonic FOCUS GX-750 ATX 3.1 750W Fully Modular Power Supply | Value-focused 750-watt builds | 750 W | 80 PLUS Gold | 12V-2×6 |
Best Picks Reviewed
#1 · Top pick
CORSAIR RM1000x 1000W Fully Modular ATX Power Supply (Black)
The CORSAIR RM1000x 1000W Fully Modular ATX Power Supply (Black) is the best all-round choice for high-end gaming builds that need 1,000 watts. The CORSAIR RM1000x 1000W Fully Modular ATX Power Supply (Black)'s 80 PLUS Gold rating and 140 mm fan make it a balanced option for a standard ATX case.
Best for: High-end gaming PCs with standard ATX case layouts
- Rated output
- 1,000 W
- Efficiency
- 80 PLUS Gold
- Fan size
- 140 mm
- Warranty
- 10 years
- High capacity for demanding components
- Fully modular cabling
- Large fan and 10-year warranty
- Overcapacity for many midrange gaming systems
Is the CORSAIR RM1000x 1000W Fully Modular ATX Power Supply (Black) worth buying on Black Friday 2026?
Yes. The CORSAIR RM1000x 1000W Fully Modular ATX Power Supply (Black) is a strong Black Friday 2026 choice for a high-powered PC, with 1,000 watts, 80 PLUS Gold efficiency, fully modular cables and a 10-year warranty.
See today’s Black Friday price on Amazon
#2
Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply
The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply is the best 1,000-watt match for builders who want a current GPU power connection. The 12V-2×6 cable and 80 PLUS Gold rating suit modern gaming systems.
Best for: Modern GPU builds seeking a native 12V-2×6 connection
- Rated output
- 1,000 W
- Efficiency
- 80 PLUS Gold
- GPU cable
- 12V-2×6
- Warranty
- 10 years
- Native 12V-2×6 GPU cable
- Fully modular design
- 10-year warranty
- 1,000 watts is more capacity than lower-power builds need
Is the Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply worth buying on Black Friday 2026?
Yes. The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply is a compelling pick for a modern GPU build, with 1,000 watts, 80 PLUS Gold efficiency and a native 12V-2×6 connection.
See today’s Black Friday price on Amazon
#3
CORSAIR RM850x 850W Fully Modular ATX Power Supply (Black)
The CORSAIR RM850x 850W Fully Modular ATX Power Supply (Black) is the best choice for gaming PCs that need strong capacity without stepping up to 1,000 watts. The CORSAIR RM850x 850W Fully Modular ATX Power Supply (Black)'s 850-watt output and 80 PLUS Gold rating cover a broad range of builds.
Best for: Gaming PCs that need less than 1,000 watts
- Rated output
- 850 W
- Efficiency
- 80 PLUS Gold
- Fan size
- 140 mm
- Warranty
- 10 years
- Useful capacity for many gaming builds
- Fully modular cable connections
- 10-year warranty
- Less upgrade headroom than a 1,000-watt unit
Is the CORSAIR RM850x 850W Fully Modular ATX Power Supply (Black) worth buying on Black Friday 2026?
Yes. The CORSAIR RM850x 850W Fully Modular ATX Power Supply (Black) is a good fit for a gaming PC that does not need 1,000 watts. The 850-watt, Gold-rated unit also brings modular cabling and a 10-year warranty.
See today’s Black Friday price on Amazon
#4
Seasonic FOCUS GX-850 ATX 3.1 850W Fully Modular Power Supply
The Seasonic FOCUS GX-850 ATX 3.1 850W Fully Modular Power Supply is the best 850-watt option for a modern GPU build that needs a 12V-2×6 cable. The Seasonic FOCUS GX-850 ATX 3.1 850W Fully Modular Power Supply's 850-watt output balances gaming capacity with a smaller step than a 1,000-watt model.
Best for: Modern gaming PCs with an 850-watt power target
- Rated output
- 850 W
- Efficiency
- 80 PLUS Gold
- GPU cable
- 12V-2×6
- Warranty
- 10 years
- Native 12V-2×6 GPU connection
- Fully modular cabling
- 10-year warranty
- Less capacity for future high-draw upgrades than 1,000-watt models
Is the Seasonic FOCUS GX-850 ATX 3.1 850W Fully Modular Power Supply worth buying on Black Friday 2026?
Yes. The Seasonic FOCUS GX-850 ATX 3.1 850W Fully Modular Power Supply suits a modern gaming PC that needs 850 watts and a native 12V-2×6 cable. The Seasonic FOCUS GX-850 ATX 3.1 850W Fully Modular Power Supply's Gold efficiency and 10-year warranty add long-term value.
See today’s Black Friday price on Amazon
#5
CORSAIR HX1200i 1200W Fully Modular ATX Power Supply (Black)
The CORSAIR HX1200i 1200W Fully Modular ATX Power Supply (Black) is the best premium pick for high-draw workstations and enthusiast PCs. The CORSAIR HX1200i 1200W Fully Modular ATX Power Supply (Black)'s 1,200-watt output and 80 PLUS Platinum rating prioritize capacity and efficiency for demanding systems.
Best for: High-draw workstations and enthusiast gaming systems
- Rated output
- 1,200 W
- Efficiency
- 80 PLUS Platinum
- Fan size
- 140 mm
- Warranty
- 10 years
- High 1,200-watt capacity
- Platinum efficiency rating
- Fully modular cable layout
- Excess capacity for typical single-GPU builds
Is the CORSAIR HX1200i 1200W Fully Modular ATX Power Supply (Black) worth buying on Black Friday 2026?
Yes, for a system that uses its capacity. The CORSAIR HX1200i 1200W Fully Modular ATX Power Supply (Black) offers 1,200 watts and 80 PLUS Platinum efficiency, making it a premium fit for high-draw builds rather than ordinary gaming PCs.
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#6
Seasonic VERTEX GX-1000 ATX 3.1 1000W Fully Modular Power Supply
The Seasonic VERTEX GX-1000 ATX 3.1 1000W Fully Modular Power Supply is the best upgrade-focused alternative for a high-end build. The 1,000-watt output, 80 PLUS Gold rating and 12-year warranty make it a long-term option.
Best for: High-end builds prioritizing a long warranty
- Rated output
- 1,000 W
- Efficiency
- 80 PLUS Gold
- GPU cable
- 12V-2×6
- Warranty
- 12 years
- 12-year warranty
- Native 12V-2×6 GPU connection
- Fully modular cabling
- A premium-tier choice for systems that need less power
Is the Seasonic VERTEX GX-1000 ATX 3.1 1000W Fully Modular Power Supply worth buying on Black Friday 2026?
Yes. The Seasonic VERTEX GX-1000 ATX 3.1 1000W Fully Modular Power Supply is a sound upgrade pick for a high-end PC, with 1,000 watts, a native 12V-2×6 connection and a 12-year warranty.
See today’s Black Friday price on Amazon
#7
Seasonic FOCUS GX-750 ATX 3.1 750W Fully Modular Power Supply
The Seasonic FOCUS GX-750 ATX 3.1 750W Fully Modular Power Supply is the best value-minded pick for a gaming PC built around a 750-watt power target. The Seasonic FOCUS GX-750 ATX 3.1 750W Fully Modular Power Supply's 80 PLUS Gold rating and 12V-2×6 cable deliver current essentials without 1,000-watt capacity.
Best for: Value-focused builds with moderate power needs
- Rated output
- 750 W
- Efficiency
- 80 PLUS Gold
- GPU cable
- 12V-2×6
- Warranty
- 10 years
- 750-watt capacity for more modest builds
- Native 12V-2×6 cable
- Fully modular and Gold-rated
- Limited headroom for power-hungry future upgrades
Is the Seasonic FOCUS GX-750 ATX 3.1 750W Fully Modular Power Supply worth buying on Black Friday 2026?
Yes. The Seasonic FOCUS GX-750 ATX 3.1 750W Fully Modular Power Supply is a value-minded option for a build that needs 750 watts. The Gold-rated unit includes a 12V-2×6 cable and a 10-year warranty.
See today’s Black Friday price on Amazon
Is CORSAIR RM1000x or Seasonic FOCUS GX-1000 better for Black Friday 2026?
The CORSAIR RM1000x and Seasonic FOCUS GX-1000 ATX 3.1 each deliver 1,000 watts and 80 PLUS Gold efficiency, so neither wins on basic capacity. CORSAIR RM1000x stands out with a 140 mm fan and a straightforward standard ATX format. Seasonic FOCUS GX-1000 ATX 3.1 stands out with a native 12V-2×6 GPU cable.
Choose CORSAIR RM1000x when its fan and layout suit your build, or choose Seasonic FOCUS GX-1000 ATX 3.1 when the updated GPU connection is a priority. Both are fully modular and carry 10-year warranties. Before choosing, confirm that the exact cable set matches your graphics card and that the PSU length fits your case.
What wattage power supply does a gaming PC need?
A 750-watt power supply suits a gaming PC whose components fit that power target, while 850 watts gives more capacity for a stronger configuration. A 1,000-watt unit suits high-draw graphics cards and builds planned for substantial upgrades. Wattage alone does not determine compatibility: check the graphics-card maker’s power guidance and the processor’s requirements.
The Seasonic FOCUS GX-750 ATX 3.1 is the lower-capacity option here, while CORSAIR RM850x offers 850 watts and CORSAIR RM1000x provides 1,000 watts. Choose a model with comfortable headroom rather than buying the largest unit by default. Leave room in the plan for add-in cards, storage and future component changes.
What is the difference between 12V-2×6 and older GPU power cables?
A native 12V-2×6 cable connects a compatible graphics card directly to a power supply designed for that connection. Seasonic FOCUS GX ATX 3.1 models and Seasonic VERTEX GX-1000 ATX 3.1 list this connection, which can simplify a compatible build by avoiding a multi-plug adapter.
CORSAIR RM1000x and CORSAIR RM850x are also suitable options when the correct cable is included with the exact retail model. Check the box contents and product listing rather than assuming every revision has identical cables. Seat GPU power connectors fully, follow the card maker’s instructions and avoid tight bends directly beside the plug.
Are fully modular power supplies worth choosing?
A fully modular power supply lets a builder connect only the cables a PC needs, which can reduce unused wiring inside the case. Every option in this guide is fully modular, from the 750-watt Seasonic FOCUS GX-750 to the 1,200-watt CORSAIR HX1200i.
Modular cabling is especially useful in compact cases or builds with carefully managed airflow, but it does not guarantee an easy installation. Check the case’s PSU clearance, cable routing space and connector positions. Never mix modular cables from different power-supply models: cable pinouts vary, and a mismatched cable can damage components.
How should you compare power supplies for Black Friday 2026?
The best Black Friday 2026 power-supply choice is the model that matches your system’s wattage, GPU cable and case rather than the largest unit on a list. CORSAIR RM1000x and Seasonic FOCUS GX-1000 ATX 3.1 are direct 1,000-watt rivals, while the 750-watt and 850-watt models address lower power targets.
Compare the exact model name, included cables, efficiency rating, warranty and physical dimensions. Black Friday listings can use similar names for different revisions, so verify the specifications on the product page before checkout. Skip it if the listing does not clearly identify wattage, connector type and warranty coverage.
Buying Guide
Match wattage to your parts
A 750-watt unit covers builds that fit a 750-watt target; select 850 or 1,000 watts for greater component demand and upgrade headroom. Follow the graphics-card maker’s power guidance.
Check the GPU power connection
A 12V-2×6 cable is a direct match for compatible GPUs. Confirm that the exact power-supply listing includes the cable and that the graphics card supports the connection.
Confirm case clearance
Check PSU length, cable routing room and modular connector access before ordering. A standard ATX power supply still needs clear space inside the case.
Compare efficiency and warranty
80 PLUS Gold covers most picks here; the CORSAIR HX1200i is Platinum-rated. Warranty terms range from 10 to 12 years among these options.
Verify the exact Black Friday listing
Read the full model name and included-cable list. Similar product names can represent different wattages or revisions, so compare the listed specifications before purchase.
FAQ
Is CORSAIR RM1000x better than Seasonic FOCUS GX-1000?
The CORSAIR RM1000x and Seasonic FOCUS GX-1000 ATX 3.1 both provide 1,000 watts and 80 PLUS Gold efficiency. Choose CORSAIR RM1000x for its 140 mm fan and standard ATX format; choose Seasonic FOCUS GX-1000 ATX 3.1 for its native 12V-2×6 GPU cable.
Is 1,000 watts enough for a high-end gaming PC?
A 1,000-watt unit is a strong fit for many high-end gaming PCs, but the right capacity depends on the graphics card and processor. CORSAIR RM1000x and Seasonic FOCUS GX-1000 ATX 3.1 each supply 1,000 watts; check component-maker guidance before purchase.
Which Seasonic FOCUS power supply is best for a modern GPU?
The Seasonic FOCUS GX-1000 ATX 3.1 is the strongest general pick for a high-draw modern GPU, with 1,000 watts and a native 12V-2×6 cable. The Seasonic FOCUS GX-850 ATX 3.1 and GX-750 ATX 3.1 offer lower wattage choices.
Is an 850-watt power supply enough for gaming?
An 850-watt model is enough for many gaming systems when the graphics card and processor fit that power target. CORSAIR RM850x and Seasonic FOCUS GX-850 ATX 3.1 both offer 850 watts; verify your graphics card’s power guidance and connector needs.
Should I buy a 750-watt or 1,000-watt power supply?
Choose 750 watts for a build whose components fit that capacity, and choose 1,000 watts for higher system demand or more upgrade room. Seasonic FOCUS GX-750 ATX 3.1 is the 750-watt option; CORSAIR RM1000x supplies 1,000 watts.