Premier ATX-PM850W
The APEVIA Premier ATX-PM850W is a 850W ATX power supply, semi-modular. We do not hold a measured noise grade for this unit, so treat noise as unknown rather than as bad. Full specs, quality score and current prices are below.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
Quality score
How we score →A power supply has no performance benchmark: every 850W unit delivers 850W. This scores how well built and how liveable the Premier ATX-PM850W is, out of 100, from six published factors.
Better always scores higher, but the steps are uneven on purpose: Bronze to Gold is worth 11 of the 25 efficiency points, Gold to Titanium only 6. A factor we hold no value for scores zero rather than being skipped, so a unit we know little about never outranks a fully specified one. That does mean a zero can mean either poor or unknown, which is what the confidence figure above is for. Physical size scores nothing: ATX is a fit decision, not a quality one.
Specifications
Output & Rating
- Continuous power
- 850 W
- Price per watt
- $0.079/W
Connectors
- CPU (EPS)
- —
- PCIe
- —
- 12V-2x6 / 12VHPWR
- —
- SATA
- —
Physical
- Form factor
- ATX
- Modularity
- Semi-modular
Electrical & Warranty
- Part number
- ATX-PM850W PCIE5
Compare the Premier ATX-PM850W against every other unit on the power supply comparison table. Not sure how much wattage you need? The power supply guide works through the sizing.
Where to buy the Premier ATX-PM850W
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | In stock | $66.99 |  |
The Premier ATX-PM850W starts from $66.99 across 1 retailer, which works out at $0.079/W. Prices update daily from live stock.
What the Premier ATX-PM850W can power
Compare all GPUs →The graphics cards this 850W unit meets the system requirement for, ranked fastest first at 4K, with the margin left over. The resolution follows the wattage, because a unit this size is bought for a card that will be run at 4K. Headroom is measured against the card maker’s own whole-system recommendation, so 0 W means it meets that recommendation exactly rather than falling short.
| Graphics card | Card draw | PSU advised | Headroom |
|---|---|---|---|
| GeForce RTX 4090 Nvidia | 450 W | 850 W | +0 W |
| GeForce RTX 5080 Nvidia | 360 W | 850 W | +0 W |
| GeForce RTX 4080 Super Nvidia | 320 W | 750 W | +100 W |
| Radeon RX 7900 XTX AMD | 355 W | 800 W | +50 W |
| GeForce RTX 5070 Ti Nvidia | 300 W | 750 W | +100 W |
| Radeon RX 9070 XT AMD | 304 W | 750 W | +100 W |
| GeForce RTX 4080 Nvidia | 320 W | 750 W | +100 W |
| Radeon RX 7900 XT AMD | 300 W | 750 W | +100 W |
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