Best Power Supplies · head-to-head

Thermaltake Toughpower GF3 850W vs NZXT C850 Gold (ATX 3.1)

A sourced, side-by-side comparison. Thermaltake Toughpower GF3 850W is cheaper at $129.99. Every spec and price links to its source.

Which is better: the Thermaltake Toughpower GF3 850W or NZXT C850 Gold (ATX 3.1)?

On the specs we track, they're closely matched. The Thermaltake Toughpower GF3 850W is the cheaper at $129.99.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Thermaltake Toughpower GF3 850W NZXT C850 Gold (ATX 3.1)
US price $129.99 $144.99 MSRP, black model
BrandThermaltakeNZXT
Released20222024-06
Wattage (W) 850 850
Efficiency rating 80plus_gold 80plus_gold
Modular full full
Atx version ATX 3.1 ATX 3.1
Pcie 5 12vhpwr Yes Yes
Fan size (mm) 135 135
Warranty years 10 10
Release year 2022 2024

Sources — Thermaltake Toughpower GF3 850W: thermaltakeusa.com (verified 2026-06-19). NZXT C850 Gold (ATX 3.1): nzxt.com (verified 2026-06-19).

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Thermaltake Toughpower GF3 850W

Based on one whitelisted lab test (Tom's Hardware). Aris Mpitziopoulos rates the GF3 850W a well-built early ATX 3.0/PCIe 5.0 unit on a CWT CSZ platform, quiet and efficient at light loads, but with sub-88% normal-load efficiency, sub-16ms PWR_OK hold-up, high-load noise exceeding 50 dBA, and overall performance trailing the Corsair RM850x and EVGA 850 G7. (1 sourced review, 1 lab-tested.)

Praised: Good build quality on a high-quality CWT CSZ platform; One of the first 850W units with ATX 3.0, PCIe 5.0 and a 12VHPWR connector; Quiet under normal operating temperatures (average noise below 30 dBA).

Flagged: Overall/normal-load efficiency is low, below the 88% it should hit; PWR_OK signal hold-up time falls below the 16ms ATX minimum; Noisy under high load at high temps, exceeding 50 dBA.

NZXT C850 Gold (ATX 3.1)

No sourced tester review yet.

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