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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 narrow margin (4.4 vs 4.2). EVGA SuperNOVA 850 G7 is best for: Gaming enthusiasts seeking high-efficiency and reliability. Read the strengths below before deciding.

EVGA SuperNOVA 850 G7
Higher ratedRanked #2 in Best 850w Power Supplies
EVGA SuperNOVA 850 G7
2 sources

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
  • — Fully modular design for improved airflow and reduced cable clutter
  • — Fluid Dynamic bearing fan with EVGA Eco mode for ultra-quiet operation and extended lifespan
Watch-outs
    Check Price on AmazonFull review →
    Thermaltake Toughpower GF3 850W
    Ranked #4 in Best 850w Power Supplies
    Thermaltake Toughpower GF3 850W
    1 source$123.99as of Oct 11

    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 160mm depth design, fully modular cabling, and semi-passive operation. It offers excellent efficiency and a decade-long warranty, and Tom's Hardware lists a 135mm fluid dynamic bearing fan.

    Strengths
    • — Platinum certified efficiency rating of 89-91% at 115V
    • — 10-year warranty coverage, per Tom's Hardware
    • — Supports ATX v3.0 and PCIe 5.0 standards with 12VHPWR connector
    Watch-outs
    • — Fan becomes more noticeable at around 70% load
    $123.99 · Check Price on AmazonFull review →

    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, and, like the Corsair RM850x and EVGA SuperNOVA 850 G7, it uses a fluid dynamic bearing fan (135mm, per Tom's Hardware). 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

    SpecEVGA SuperNOVA 850 G7Thermaltake Toughpower GF3 850W
    Wattage850W850W
    Efficiency80 Plus GoldPlatinum (89-91%)
    ModularityFully ModularFully modular
    Form FactorATX12V v2.52ATX 3.1
    Fan TypeFluid Dynamic Bearing135mm Fluid Dynamic Bearing
    Warranty10 years10 years
    Dimensions150 x 85 x 130mm150mm(W) x 86mm(H) x 160mm(D)
    Connectors2x EPS, 6x PCIe 6+2 pin, 9 SATA, 4x 4-pin Molex, 1x FDD adapterPCIe 6+2Pin X 4, PCIe 12+4Pin X 1
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