What PSU do I need?
Power supply for the RTX 5070
Get at least an 800 W power supply for the RTX 5070 (the maker recommends 650 W): our checker recommends 650 W with a Ryzen 7 9800X3D, 800 W with a Core i7-14700K. The cheapest one in our catalog that fits is the Gigabyte UD850GM-A PG5 850W Gold (ATX 3.1).
Key facts· updated
- The RTX 5070 draws about 250 W while gaming (maker spec pages, checked Oct 29, 2026).
- The maker recommends a 650 W power supply for the RTX 5070 (maker spec pages, checked Oct 29, 2026).
- A PC with the RTX 5070 and a Ryzen 7 9800X3D draws about 450 W while gaming, so PC Atlas recommends a 650 W power supply (the higher of the maker's advice and 1.3× the draw, rounded up to 50 W).
- A PC with the RTX 5070 and a Core i7-14700K draws about 583 W while gaming, so PC Atlas recommends an 800 W power supply (the higher of the maker's advice and 1.3× the draw, rounded up to 50 W).
- Power plug on the RTX 5070: Depends on the model: some versions use 8-pin plugs, others the 12V-2x6 plug. Check the listing.
| Card's gaming power | ~250 W |
|---|---|
| Maker's PSU advice | 650 W |
| With a Ryzen 7 9800X3D | ~450 W total while gaming → 650 W PSU |
| With a Core i7-14700K | ~583 W total while gaming → 800 W PSU |
| Power plug | Depends on the model: some versions use 8-pin plugs, others the 12V-2x6 plug. Check the listing. |
Card power, plug and the maker's advice from maker spec pages (checked 2026-10-29). Total = processor + card + ~80 W for the rest; recommended = the maker's number or 1.3× the total, whichever is higher, rounded up to 50 W (the same rule Build a PC checks).
Power supplies that fit (800 W+)
| Power supply | Watts | Size | ATX 3.1 | Price today |
|---|---|---|---|---|
| Gigabyte UD850GM-A PG5 850W Gold (ATX 3.1) | 850 W | ATX | Yes | $90Sample |
| Corsair RM850e 850W Gold (ATX 3.1) | 850 W | ATX | Yes | $109Sample |
| be quiet! Pure Power 13 M 850W Gold (ATX 3.1) | 850 W | ATX | Yes | $110Sample |
| MSI MAG A850GL PCIE5 850W Gold (ATX 3.1) | 850 W | ATX | Yes | $110Sample |
| Corsair SF850 850W Platinum (SFX, ATX 3.1) | 850 W | SFX | Yes | $200Sample |
| NZXT C850 SFX Gold 850W (SFX, ATX 3.1) | 850 W | SFX | Yes | $200Sample |
Cheapest first; SFX units are for small cases. Prices last checked ; Sample = PC Atlas catalog estimate, not a live store price.
Questions
What wattage power supply do I need for the RTX 5070?
Get at least an 800 W power supply for the RTX 5070 (the maker recommends 650 W): our checker recommends 650 W with a Ryzen 7 9800X3D, 800 W with a Core i7-14700K. The cheapest one in our catalog that fits is the Gigabyte UD850GM-A PG5 850W Gold (ATX 3.1).
What power plug does the RTX 5070 use?
Depends on the model: some versions use 8-pin plugs, others the 12V-2x6 plug. Check the listing.
Do I need an ATX 3.1 power supply?
No. The RTX 5070 uses 8-pin plugs, which every modern power supply has. ATX 3.1 is still a sensible pick if you might upgrade to a card with the 12V-2x6 plug later.
Is 650 W enough for the RTX 5070?
With a Ryzen 7 9800X3D-class processor, yes: the whole PC draws about 450 W while gaming, and 650 W leaves headroom for power spikes. With a Core i7-14700K (about 583 W total), step up to 800 W.