The Corsair HX1500i wins in 4 out of 7 comparable specs. Its biggest advantage is 12VHPWR Connector (100% better).
RM850x wins in 1 spec (MSRP: 60% better).
Recommendation
Choose HX1500i if you want the best overall performance — especially 12vhpwr connector.
Choose RM850x if msrp matters more to you.
| Spec | CorsairHX1500i | CorsairRM850x |
|---|---|---|
| Power | ||
| Wattage | 1500W+76% | 850W |
| Efficiency | 80+ Platinum+25% | 80+ Gold |
| ATX Version | ATX 3.0+50% | ATX 2.0 |
| Design | ||
| Modular | Full | Full |
| Fan Size | 140 mm | 140 mm |
| Depth | 200 mm | 160 mm |
| Features | ||
| 12VHPWR Connector | Yes+100% | No |
| Warranty | 10 | 10 |
| Price | ||
| MSRP | $350 | $140−60% |
| Release Date | Sep 2023 | Sep 2021 |
