Short answer: yes for an RTX 5070 Ti, RTX 5070, RX 9070 XT, RX 9070 or anything smaller, in a typical build. No for an RTX 5080 or RTX 5090. With a top processor or a factory-overclocked card, step up to 850W.
Card by card
| Graphics card | Recommended size | Is 750W enough? |
|---|---|---|
| RTX 5090 | 1000W | No |
| RTX 5080 | 850W | No |
| RTX 5070 Ti | 750W | Yes, with a typical processor |
| RTX 5070 | 650W | Yes, with room to spare |
| RX 9070 XT | 750W to 850W | Yes for a standard build |
| RX 9070 | 650W | Yes |
| RTX 4080 / 4080 Super | 750W to 1250W | Only with a mid-range processor |
| RTX 4070 Ti / Ti Super | 750W to 1000W | Yes with a mid-range processor |
| RTX 3080 / 3080 Ti | 750W to 1000W | Yes with a mid-range processor |
RTX 50 sizes from PC Gamer. RX 9070 XT and older cards from MSI. RX 9070 from Corsair.
When to go to 850W instead
- You have a top processor such as a Ryzen 9 or Core Ultra 9.
- Your card is a factory-overclocked partner model whose box asks for more.
- You want the fan to stay slow or off for longer while gaming.
- You plan to upgrade the graphics card within a couple of years.
The price gap between 750W and 850W is often small. If you’re on the line, I’d take 850W.
Why a little extra helps
A power supply runs coolest and quietest around the middle of its range, and modern cards draw short spikes above their rating. See transient power spikes explained for why headroom matters.
My 750W picks
- Best 750W all-rounder · Tier ACorsair RMx (2024)80 Plus Gold · Fully modular · ATX · 750/850/1000WQuiet at everyday loads, with fan failure protection.Check 750W price
- Compact 750W · Tier ASeasonic Core GX ATX 380 Plus Gold · Fully modular · ATX · 650/750/850W140mm deep, so it suits smaller cases.Check 750W price
- Quiet 750W · Tier Bbe quiet! Pure Power 13 M80 Plus Gold · Fully modular · ATX · 750/850/1000/1200WAlmost silent in two lab tests at 850W.Check 750W price
- 750W in SFX · Tier ACorsair SF Platinum (2024)80 Plus Platinum · Fully modular · SFX · 750/850/1000WFor small form factor builds.Check 750W price
Questions
Is 750W enough for an RTX 5070 Ti?
Yes for a typical build. MSI recommends 750W.
Is 750W enough for an RTX 5080?
I wouldn’t. The usual recommendation is 850W.
Is 750W enough for an RX 9070 XT?
Yes for a standard build. MSI’s range is 750W to 850W.
Is 750W too much for an RTX 5070?
No. It gives headroom, and a good 750W unit won’t waste meaningful power.
Does a 750W power supply use 750W all the time?
No. It only supplies what your parts draw. 750W is the most it can deliver.
Sources
- PC Gamer: Nvidia GeForce RTX 5080 (RTX 50 series spec table)
- MSI: recommended PSU table for Nvidia 30/40/50 series
- MSI: best PSU for AMD RX 9070 XT
- Corsair: RX 9060 XT vs RX 9070
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