Corsair
Corsair RM850x (2024)
$169.99
Released 2024
Best Power Supplies · head-to-head
Corsair RM850x (2024) vs Thermaltake Toughpower GF3 850W
A sourced, side-by-side comparison. Thermaltake Toughpower GF3 850W is cheaper at $129.99. Every spec and price links to its source.
Thermaltake
Thermaltake Toughpower GF3 850W
$129.99Cheaper
Released 2022
Which is better: the Corsair RM850x (2024) or Thermaltake Toughpower GF3 850W?
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 | Corsair RM850x (2024) | Thermaltake Toughpower GF3 850W |
|---|---|---|
| US price | $169.99 MSRP, black model | $129.99 |
| Brand | Corsair | Thermaltake |
| Released | 2024 | 2022 |
| 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) | 140 | 135 |
| Warranty years | 10 | 10 |
| Release year | 2024 | 2022 |
Sources — Corsair RM850x (2024): corsair.com (verified 2026-06-19). Thermaltake Toughpower GF3 850W: thermaltakeusa.com (verified 2026-06-19).
What's the difference between the Corsair RM850x (2024) and Thermaltake Toughpower GF3 850W?
Where the two actually differ on the specs we track (1 of 7). Matching specs are omitted.
- Fan size (mm): Corsair RM850x (2024) 140 vs Thermaltake Toughpower GF3 850W 135
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Corsair RM850x (2024)
No sourced tester review yet.
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.