Best Power Supplies Under $500
Top-scoring psus you can buy for under $500. Independent benchmarks, no sponsored picks.
Ranked by the weighted Specdex score — 0-100 composite of real-world and synthetic benchmarks.
- #1be quiet!
be quiet! Dark Power 13 1000W
1000 W · Titanium · ATX 3.0
be quiet!’s flagship — the quietest and most efficient PSU you can buy today.
- #2be quiet!
be quiet! Dark Power 13 1000W
1000 W · Titanium
be quiet!'s be quiet! Dark Power 13 1000W — 1000 W Titanium PSU.
- #3Seasonic
Seasonic Vertex PX-1200
1200 W · 80+ Platinum · ATX 3.0
Seasonic’s Platinum flagship — reference-quality voltage regulation, quiet, and a 12-year warranty.
- #4Seasonic
Seasonic PRIME TX-1300
1300W · 80+ Titanium · 12VHPWR
The reference 1300W PSU. 80+ Titanium efficiency, 12-year warranty, pure-DC fan profile that runs silent under most loads. Built for RTX 5090 + Threadripper builds.
- #5Corsair
Corsair RM1000x Shift
1000 W · 80+ Gold · ATX 3.1
Corsair’s 1000 W ATX 3.1 with a 12V-2x6 connector and sideways cable shift design — quiet and ready for 5090-class GPUs.
- #6
- #7be quiet!
be quiet! Dark Power Pro 13 1300W
1300W · 80+ Titanium · Silent
be quiet!'s flagship. 1300W with semi-passive Silent Wings fan + 80+ Titanium = the quietest premium PSU you can buy.
- #8NZXT
NZXT C1500 Platinum
1500 W · Platinum · ATX 3.1
The PSU for dual-GPU workstations and RTX 5090 rigs with zero headroom anxiety.
- #9
- #10
- #11Seasonic
Seasonic Vertex GX-1000
1000 W · Gold
Seasonic's Seasonic Vertex GX-1000 — 1000 W Gold PSU.
- #12be quiet!
be quiet! Straight Power 12 850W
850 W · Platinum
be quiet!'s be quiet! Straight Power 12 850W — 850 W Platinum PSU.
- #13Corsair
Corsair RM850e
850W · 80+ Gold · 12VHPWR
The price-conscious 850W modular PSU with 12VHPWR. Strong 80+ Gold efficiency, 7-year warranty, native 600W 12VHPWR cable for RTX 5070+ builds.
- #14
- #15
Head-to-head
The two highest-ranked products compared side-by-side.
Frequently asked
What is the best power supplie right now? +
be quiet! Dark Power 13 1000W leads our Best Power Supplies Under $500 list with a Specdex score of 94/100. be quiet!’s flagship — the quietest and most efficient PSU you can buy today.
How is the Specdex score calculated? +
The Specdex score is a 0–100 weighted composite of category-specific sub-scores (e.g. CPU/GPU/camera/battery/display for phones). Weights are published on our methodology page and reviewed quarterly.
How often is this list updated? +
The ranking is regenerated on every page load from our live D1 database. Scores re-calibrate whenever we add new products or firmware updates change benchmark results.