Looking for an honest be quiet! Straight Power 12 1500W ATX 3.0 vs MSI PCIE 5.1 & ATX 3.1 Gaming comparison in 2026? We scored both power supplies on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the be quiet! Straight Power 12 1500W ATX 3.0 comes out ahead 67/100 to 58/100 — a 9-point gap. The widest gap is in performance, where the be quiet! Straight Power 12 1500W ATX 3.0 pulls noticeably ahead. On price the MSI PCIE 5.1 & ATX 3.1 Gaming undercuts the be quiet! Straight Power 12 1500W ATX 3.0 by 187% ($150 vs $429.79), which materially changes the value calculus for budget-conscious buyers.
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be quiet! Straight Power 12 1500W ATX 3.0 edges out the MSI PCIE 5.1 & ATX 3.1 Gaming in the power supplies category, especially in performance, scoring 67 vs 58. If you want the better overall power supplies, be quiet! Straight Power 12 1500W ATX 3.0 is the recommended choice.
Picking be quiet! Straight Power 12 1500W ATX 3.0 over MSI PCIE 5.1 & ATX 3.1 Gaming means trading these off.
be quiet!
$430
Scores are relative within the power suppliescategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
| Spec | be quiet! Straight Power 12 1500W ATX 3.0W | MSI PCIE 5.1 & ATX 3.1 Gaming |
|---|---|---|
| Price | 429.79$ | 150$✓ |
| Weight | 2200g | 2000g✓ |
| Dimensions | 150 x 86 x 180 mm | 160 x 150 x 86 mm |
| Colors | Black | Black |
Buy be quiet! Straight Power 12 1500W ATX 3.0 if…
Buy the be quiet! Straight Power 12 1500W ATX 3.0 if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Buy MSI PCIE 5.1 & ATX 3.1 Gaming if…
Choose the MSI PCIE 5.1 & ATX 3.1 Gaming if budget is your top priority — it offers competitive specs at a lower price point.
be quiet! Straight Power 12 1500W ATX 3.0 edges out the MSI PCIE 5.1 & ATX 3.1 Gaming in the power supplies category, especially in performance, scoring 67 vs 58. If you want the better overall power supplies, be quiet! Straight Power 12 1500W ATX 3.0 is the recommended choice.
Yes, be quiet! Straight Power 12 1500W ATX 3.0 scores higher overall (67 vs 83).
MSI PCIE 5.1 & ATX 3.1 Gaming is cheaper at $150 vs $429.79 for the be quiet! Straight Power 12 1500W ATX 3.0.
Buy the be quiet! Straight Power 12 1500W ATX 3.0 if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Choose the MSI PCIE 5.1 & ATX 3.1 Gaming if budget is your top priority — it offers competitive specs at a lower price point.
MSI PCIE 5.1 & ATX 3.1 Gaming is lighter at 2000g vs 2200g.
Reviewed by VersusMatrix Editorial Team
Last updated: May 31, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.