The NZXT C850 (2024) wins in 3 out of 7 comparable specs. Its biggest advantage is 12VHPWR Connector (100% better).
Prime TX-850 wins in 2 specs (Efficiency: 50% better).
Recommendation
Choose C850 (2024) if you want the best overall performance — especially 12vhpwr connector.
Choose Prime TX-850 if efficiency matters more to you.
| Spec | NZXTC850 (2024) | SeasonicPrime TX-850 |
|---|---|---|
| Power | ||
| Wattage | 850W | 850W |
| Efficiency | 80+ Gold | 80+ Titanium+50% |
| ATX Version | ATX 3.1+55% | ATX 2.0 |
| Design | ||
| Modular | Full | Full |
| Fan Size | 120 mm | 135 mm |
| Depth | 140 mm | 170 mm |
| Connectors | ||
| SATA Connectors | N/A | 14 |
| PCIe Connectors | N/A | 6 |
| Features | ||
| 12VHPWR Connector | Yes+100% | No |
| Warranty | 10 | 12+20% |
| Price | ||
| MSRP | $130−35% | $200 |
| Release Date | Jun 2024 | Oct 2019 |
