be quiet! - Pure Power 12 M 850W vs Cooler Master - MWE Gold V2 850W

These two are evenly matched on the broad strokes; the decision sits on which individual spec advantages weigh more for your use.

Pick the Pure Power 12 M 850W if you care most about warranty / atx 3.0 / 12vhpwr. The biggest gaps in its favor are warranty, atx 3.0 / 12vhpwr.

The MWE Gold V2 850W similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable wattage, efficiency, modular, so those specs do not separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.