The Thermaltake Toughpower GF3 1200W 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 Toughpower GF3 1200W if you want the best overall performance — especially 12vhpwr connector.
Choose Prime TX-850 if efficiency matters more to you.
| Spec | SeasonicPrime TX-850 | ThermaltakeToughpower GF3 1200W |
|---|---|---|
| Power | ||
| Wattage | 850W | 1200W+41% |
| Efficiency | 80+ Titanium+50% | 80+ Gold |
| ATX Version | ATX 2.0 | ATX 3.0+50% |
| Design | ||
| Modular | Full | Full |
| Fan Size | 135 mm | 140 mm |
| Depth | 170 mm | 160 mm |
| Connectors | ||
| SATA Connectors | 14 | N/A |
| PCIe Connectors | 6 | N/A |
| Features | ||
| 12VHPWR Connector | No | Yes+100% |
| Warranty | 12+20% | 10 |
| Price | ||
| MSRP | $200 | $200 |
| Release Date | Oct 2019 | Jan 2023 |
