The be quiet! Pure Power 13 M 850W wins in 3 out of 7 comparable specs. Its biggest advantage is Warranty (43% better).
RM1000e wins in 2 specs (Modular: 50% better).
Recommendation
Choose Pure Power 13 M 850W if you want the best overall performance — especially warranty.
Choose RM1000e if modular matters more to you.
| Spec | be quiet!Pure Power 13 M 850W | CorsairRM1000e |
|---|---|---|
| Power | ||
| Wattage | 850W | 1000W+18% |
| Efficiency | 80+ Gold | 80+ Gold |
| ATX Version | ATX 3.1+3% | ATX 3.0 |
| Design | ||
| Modular | Semi | Full+50% |
| Fan Size | 120 mm | 120 mm |
| Depth | 160 mm | 150 mm |
| Features | ||
| 12VHPWR Connector | Yes | Yes |
| Warranty | 10+43% | 7 |
| Price | ||
| MSRP | $130−24% | $170 |
| Release Date | Jun 2025 | Mar 2023 |
