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 (4.5 vs 3.4). The gap is mostly about Gaming enthusiasts seeking high-efficiency and reliability — read the strengths below before deciding.

Higher ratedRanked #1 in Best 850w Power Supplies

EVGA SuperNOVA 850 G7

4.5

5 sources1 derived

Tom's Hardware reviewed the EVGA SuperNOVA 850 G7 as an 80 Plus Gold certified power supply delivering 92% efficiency or higher under typical loads. The unit features 100% Japanese capacitors, full modularity for improved airflow, and a fluid dynamic bearing fan with Eco mode for quiet operation and longevity. EVGA backs it with a 10-year limited warranty, positioning it as a reliable choice for gaming rigs, content creation workstations, or general builds requiring stable power delivery. This PSU is ideal for users seeking high-quality, efficient power with extended warranty coverage.

Strengths

— 80 Plus Gold certified with 92% efficiency or higher under typical loads
— 100% Japanese capacitors for top-notch reliability and performance
— Fully modular design for improved airflow and reduced cable clutter

Watch-outs

Check Price on Amazon Full review →

Ranked #8 in Best 850w Power Supplies

Thermaltake Toughpower GF3 850W

3.4

4 sources2 derived$123.99as of Sep 15

The Thermaltake Toughpower GF A3 850W is a high-end PSU with Platinum efficiency certification and full ATX v3.0/PCIe 5.0 compatibility. It features a compact 140mm depth design, fully modular cabling, and semi-passive operation. While it offers excellent efficiency and a decade-long warranty, it uses a less premium sleeve bearing fan compared to its 1200W sibling. The unit also includes addressable RGB lighting as a premium feature.

Strengths

— Platinum certified efficiency rating of 89-91% at 115V
— Fully modular design with 120mm sleeve bearing fan
— 10-year warranty coverage

Watch-outs

— Uses sleeve bearing fan instead of fluid dynamic bearing fan like higher-tier models
— Includes addressable RGB lighting which some users may find unnecessary

$123.99 · 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.

How they stack up

EVGA SuperNOVA 850 G7

The EVGA SuperNOVA 850 G7 outperforms the Corsair RM850x with 100% Japanese capacitors and a more advanced Eco mode, while also offering better efficiency ratings. Unlike the Seasonic Focus GX-850, it avoids fan noise issues and provides a more reliable build quality, though it lacks the 10-year warranty of the Corsair RM850x.

Thermaltake Toughpower GF3 850W

The Thermaltake Toughpower GF3 850W offers Platinum efficiency and a 10-year warranty, but uses sleeve bearing fan instead of the fluid dynamic bearing found in the Corsair RM850x and EVGA SuperNOVA 850 G7. It's less efficient than the be quiet! Dark Power Pro 12 850W and lacks the premium features of the ASUS ROG Strix 850G Aura.

Specs side-by-side

Spec	EVGA SuperNOVA 850 G7	Thermaltake Toughpower GF3 850W
Wattage	850W	850W
Efficiency	80 Plus Gold	Platinum (89-91%)
Modularity	Fully Modular	Fully modular
Form Factor	ATX12V v2.52	ATX 3.1
Fan Type	Fluid Dynamic Bearing	120mm Sleeve Bearing
Warranty	10 years	10 years
Dimensions	150 x 85 x 130mm	150mm(W) x 86mm(H) x 160mm(D)
Connectors	2x EPS, 6x PCIe 6+2 pin, 9 SATA, 4x 4-pin Molex, 1x FDD adapter	PCIe 6+2Pin X 4, PCIe 12+4Pin X 1

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