Fractal Design Ion Gold 850W vs Corsair RM1000x (2024)
Efficiency, ATX compliance, 12V-2x6 support, Cybenetics rating, and 5-year total cost of ownership.
| Spec | Fractal Design Ion Gold 850W | Corsair RM1000x (2024) |
|---|---|---|
| Wattage | 850W | 1000W |
| Efficiency Tier | gold | gold |
| ATX Version | ATX 2.x | ATX 3.1 |
| 12V-2x6 (RTX 5090 safe) | ✗ No | ✓ Yes |
| Modular | full | full |
| Cybenetics Rating | — | ETA-A |
| MSRP | $119 | $189 |
| Est. Annual Electricity Cost | $252/yr | $252/yr |
| 5-Year Total Cost (TCO) | $1379 | $1449 |
5-Year Total Cost of Ownership
Assuming 500W average draw, 8 hours/day gaming, and $0.15/kWh electricity:
Fractal Design Ion Gold 850W costs ~$1379 over 5 years (purchase + electricity), saving approximately $70 compared to Corsair RM1000x (2024).
Frequently Asked Questions
Which is more efficient — Fractal Design Ion Gold 850W or Corsair RM1000x (2024)?
Fractal Design Ion Gold 850W is rated 80+ Gold (~87% efficient), making it more efficient than Corsair RM1000x (2024) (80+ Gold (~87% efficient)). Higher efficiency means less electricity waste as heat, lower operating costs, and better thermal performance.
Can Fractal Design Ion Gold 850W run an RTX 5090?
Fractal Design Ion Gold 850W does not include a native 12V-2x6 connector. Running an RTX 5090 would require an adapter cable, which is not recommended at the 5090's 575W TBP. Upgrade to an ATX 3.1 PSU with a native 12V-2x6 port.
Which has lower long-term cost?
At $0.15/kWh and 8 hours/day, Fractal Design Ion Gold 850W costs ~$1379 total over 5 years (purchase + electricity) vs ~$1449 for Corsair RM1000x (2024) — a difference of ~$70.