Corsair
Corsair RM850x (2024)
$169.99
Released 2024
Best Power Supplies · head-to-head
Corsair RM850x (2024) vs Seasonic Focus GX-850 (V4)
A sourced, side-by-side comparison. Seasonic Focus GX-850 (V4) is cheaper at $149.99. Every spec and price links to its source.
Seasonic
Seasonic Focus GX-850 (V4)
$149.99Cheaper
Released 2024-11
Which is better: the Corsair RM850x (2024) or Seasonic Focus GX-850 (V4)?
On the specs we track, they're closely matched. The Seasonic Focus GX-850 (V4) is the cheaper at $149.99.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Corsair RM850x (2024) | Seasonic Focus GX-850 (V4) |
|---|---|---|
| US price | $169.99 MSRP, black model | $149.99 MSRP, black model |
| Brand | Corsair | Seasonic |
| Released | 2024 | 2024-11 |
| 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 | 2024 |
Sources — Corsair RM850x (2024): corsair.com (verified 2026-06-19). Seasonic Focus GX-850 (V4): amazon.com (verified 2026-06-19).
What's the difference between the Corsair RM850x (2024) and Seasonic Focus GX-850 (V4)?
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 Seasonic Focus GX-850 (V4) 135