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750W PSU

Physical Product · Power supplies · 56 mentions · 1 subreddit · discussed in r/buildapc

Reddit take

AI summary of the Reddit excerpts below — not a quote

A 750W power supply is widely considered the 'sweet spot' for modern mid-to-high-end gaming builds. It is frequently recommended as a sufficient and cost-effective choice for components like the RTX 5070 Ti and Ryzen 7800X3D, providing enough headroom for most users without the unnecessary expense of 1000W units.

Pros

  • Sufficient for most modern mid-to-high-end gaming configurations
  • Better value than 1000W units which are often cited as 'overkill'
  • Provides comfortable headroom for efficient CPUs like the AMD X3D series
  • Generally handles transient power spikes for mid-range GPUs

Cons

  • May be 'on the edge' or insufficient for flagship, power-hungry GPUs like the RTX 5080
  • Limited headroom for significant future-proofing if moving to top-tier hardware
  • Can require undervolting in some high-load scenarios to maintain stability

Caveats

  • Suitability depends heavily on the specific CPU/GPU pairing; high-TDP Intel i9s paired with high-end GPUs may push this capacity
  • Quality matters; users advise against 'cheaping out' on the unit even if the wattage rating is correct

Best for

  • Mid-to-high range gaming builds (e.g., RTX 5070 Ti, RX 7800 XT)
  • Users seeking a balance between cost and power capacity
  • Builds using power-efficient components like the Ryzen 7800X3D

Avoid if

  • Using flagship, power-hungry components like an RTX 5080 or high-wattage Intel i9 processors
  • Planning for extreme overclocking or multiple high-draw expansions

This summary uses balanced time weighting with about a 6-month half-life. The evidence comes from r/buildapc with a median source age of approximately 203 days, reflecting hardware discussions from late 2025 and early 2026.

Sentiment

41 positive (73%) · 5 mixed (9%) · 10 negative (18%)

Trust + time weighted score: +59% · raw score 55%

What redditors said (10 of 56)

I would go for higher capacity PSU. While technically what you want is enough, there can be some spikes and also you generally want to have a bit more headroom. No need for meaningless overkills such as 1000W ones that I see people do, but at basically same prices, there is no reason not to go 750W.
positive · u/T****a · r/buildapc · comment · Jan 28, 2026 · open on Reddit ↗
The 1TB SSD and 750W PSU are good choices too; you’ve got room to expand later if you want.
positive · u/s****c · r/buildapc · comment · Jan 31, 2026 · open on Reddit ↗
750w PSU is absolutely fine.
positive · u/M****g · r/buildapc · comment · Mar 28, 2026 · open on Reddit ↗
Depends on your CPU. A 65w AMD part or an x3d? 750w is sufficient for both. Anything higher and you'd want 850. 1000w is overkill
positive · u/k****h · r/buildapc · comment · Mar 11, 2026 · open on Reddit ↗
Don't cheap out on the Power Supply, and I would at least have 750W for what you want to build.
positive · u/B****4 · r/buildapc · comment · Feb 8, 2026 · open on Reddit ↗
It's running a 5070 ti and 10900k so 750 is still OK I just can't believe I didn't check.
positive · u/T****n · r/buildapc · Jan 30, 2026 · open on Reddit ↗
Your 750W PSU will be enough. That PC's wattage under maximum load would be around 565 watts.
positive · u/D****t · r/buildapc · comment · Feb 21, 2026 · open on Reddit ↗
Fantastic deal. And as others have said, I’d slap a 750w PSU in it first.
positive · u/h****l · r/buildapc · comment · Mar 27, 2026 · open on Reddit ↗
If it’s a cheap power supply, I’d look into replacing that. 750w also might be kind of small for a 5080, so might be a good idea to replace anyway.
negative · u/F****3 · r/buildapc · comment · Feb 24, 2026 · open on Reddit ↗
So my pc have this specs : * **CPU:** AMD Ryzen 5 5600 * **GPU:** NVIDIA ASUS GeForce RTX 3070 * **RAM:** 32GB DDR4 3000MHz (they are 3200mhz but i capped it at 3000mhz) * **Motherboard:** ASUS B550M-K (B550 chipset) * **Storage 1:** 256GB SSD * **Storage 2:** 1TB HDD * **Power Supply:** 750W PSU
negative · u/F****7 · r/buildapc · Feb 25, 2026 · open on Reddit ↗

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