Cooler Master V850 SFX Gold vs Corsair RM850x (2024)
Efficiency, ATX compliance, 12V-2x6 support, Cybenetics rating, and 5-year total cost of ownership.
| Spec | Cooler Master V850 SFX Gold | Corsair RM850x (2024) |
|---|---|---|
| Wattage | 850W | 850W |
| Efficiency Tier | gold | gold |
| ATX Version | ATX 3.0 | ATX 3.1 |
| 12V-2x6 (RTX 5090 safe) | ✓ Yes | ✓ Yes |
| Modular | full | full |
| Cybenetics Rating | — | ETA-A |
| MSRP | $159 | $139 |
| Est. Annual Electricity Cost | $252/yr | $252/yr |
| 5-Year Total Cost (TCO) | $1419 | $1399 |
5-Year Total Cost of Ownership
Assuming 500W average draw, 8 hours/day gaming, and $0.15/kWh electricity:
Corsair RM850x (2024) costs ~$1399 over 5 years (purchase + electricity), saving approximately $20 compared to Cooler Master V850 SFX Gold.
Note: Cooler Master V850 SFX Gold has higher efficiency but higher upfront cost. The TCO crossover depends on your electricity rate and usage.
Frequently Asked Questions
Which is more efficient — Cooler Master V850 SFX Gold or Corsair RM850x (2024)?
Cooler Master V850 SFX Gold is rated 80+ Gold (~87% efficient), making it more efficient than Corsair RM850x (2024) (80+ Gold (~87% efficient)). Higher efficiency means less electricity waste as heat, lower operating costs, and better thermal performance.
Can Cooler Master V850 SFX Gold run an RTX 5090?
Cooler Master V850 SFX Gold includes a native 12V-2x6 cable and supports ATX 3.1 — it is compatible with the RTX 5090, provided the wattage (850W) is sufficient for your full build.
Which has lower long-term cost?
At $0.15/kWh and 8 hours/day, Corsair RM850x (2024) costs ~$1399 total over 5 years (purchase + electricity) vs ~$1419 for Cooler Master V850 SFX Gold — a difference of ~$20.