Head-to-head · Best 850w Power Supplies

EVGA SuperNOVA 850 G7 vs Thermaltake Toughpower GF3 850W

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

EVGA SuperNOVA 850 G7 comes out ahead by a narrow margin (4.4 vs 4.3). The gap is mostly about fit for purpose — read the strengths below before deciding.

Higher ratedRanked #3 in Best 850w Power Supplies

EVGA SuperNOVA 850 G7

4.4

The EVGA SuperNOVA 850 G7 delivers high performance in a compact form factor, according to Tom's Hardware and Hardware Busters reviews. It offers excellent efficiency and build quality while maintaining reliable operation under load. However, it lacks PCIe 5.0 support and suffers from high inrush currents. This PSU is ideal for gamers seeking a powerful yet space-saving solution, though those requiring latest-generation PCIe connectors may need to look elsewhere.

Strengths

— Full power at 47 degrees Celsius
— Top overall performance
— Good build quality

Watch-outs

— No PCIe 5.0 connectors
— High inrush currents

Buy at shi.com Full review →

Ranked #4 in Best 850w Power Supplies

Thermaltake Toughpower GF3 850W

4.3

$109.99as of Jul 8

The Thermaltake Toughpower GF A3 850W is a Platinum-certified ATX v3.0 and PCIe 5.0 compatible power supply with a 12VHPWR connector rated at 450W. Hardware Busters praised its efficiency, quiet operation, and fully modular design, though noted the use of sleeve bearing fans instead of fluid dynamic bearings. Tom's Hardware called it one of the first ATX v3.0 PSUs with decent performance and quiet operation, though it lacks peak efficiency and has high inrush current at 230V. This PSU is ideal for users seeking reliable v3.0 compatibility with a 10-year warranty, but those wanting the absolute best in performance or fan quality may want to consider alternatives.

Strengths

— ATX v3.0 and PCIe 5.0 compatible with 12VHPWR connector rated at 450W
— Fully modular design with 120mm sleeve bearing fan for quiet operation
— Semi-passive operation available and selectable

Watch-outs

— Uses sleeve bearing fan instead of fluid dynamic bearing fan like higher-tier models
— Average transient response at 12V rail
— High inrush current with 230V input

$109.99 · Check Price on Amazon Full review →

Specs side-by-side

Spec	EVGA SuperNOVA 850 G7	Thermaltake Toughpower GF3 850W
Wattage	850W	850W
Efficiency	Cybenetics Platinum (89-91%), 80 PLUS Gold	Platinum (89-91%)
Form Factor	ATX12V v2.52	ATX
Modularity	Fully modular	Fully modular
Fan Size	120mm	120mm Sleeve Bearing Fan
Warranty	10-year	10 years
Connectors	2x EPS, 6x PCIe 6+2 pin, 9 SATA, 4x Molex, 1x FDD	PCIe 6+2Pin X 4, PCIe 12+4Pin X 1

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