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.

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The short answer

EVGA SuperNOVA 850 G7 comes out ahead by a clear margin (4.4 vs 4.0). 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

4 sources2 derived

Tom's Hardware and Hardware Busters both rate the EVGA SuperNOVA 850 G7 highly for the performance it packs into a compact body. Efficiency and build quality hold up, and it stays reliable under load. What it lacks is PCIe 5.0 support, and reviewers measured high inrush currents. Gamers who need power in a space-saving footprint should buy; anyone who needs latest-generation PCIe connectors should 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

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Ranked #6 in Best 850w Power Supplies

Thermaltake Toughpower GF3 850W

4.0

3 sources$109.99as of Jul 31

The Thermaltake Toughpower GF3 850W carries 80 PLUS Gold and Cybenetics ETA Gold certification, ATX v3.0 and PCIe 5.0 compatibility, and a 12VHPWR connector rated at 450W. APH Networks called it a silent-to-very-quiet, fully modular unit built by CWT and cooled by a 135mm fluid dynamic bearing fan, and reported that Thermaltake’s advertised "100% Japanese brand capacitors" claim is false because the polymer capacitors are Chinese-made. Tom's Hardware called it one of the first ATX v3.0 PSUs with decent performance and quiet operation, but measured short peak efficiency and high inrush current at 230V. It fits buyers who want dependable v3.0 compatibility and a 10-year warranty, not those chasing the absolute best in performance or fan quality.

Strengths

— ATX v3.0 and PCIe 5.0 compatible with 12VHPWR connector rated at 450W
— Fully modular design with 135mm fluid dynamic bearing fan for quiet operation
— Semi-passive operation available and selectable

Watch-outs

— Advertised "100% Japanese" capacitors: the polymer capacitors are Chinese-made
— Average transient response at 12V rail
— High inrush current with 230V input

$109.99 · Check Price on Amazon Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

Specs side-by-side

Spec	EVGA SuperNOVA 850 G7	Thermaltake Toughpower GF3 850W
Wattage	850W	850W
Efficiency	Cybenetics Platinum (89-91%), 80 PLUS Gold	80 PLUS Gold, Cybenetics Gold (87-89%)
Form Factor	ATX12V v2.52	ATX
Modularity	Fully modular	Fully modular
Fan Size	120mm	135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z)
Warranty	10-year	10 years
Compliance	80 PLUS Gold	ATX v3.0, EPS 2.92
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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