12/02/2026 3:25 pm
Topic starter
Notifications
Clear all
0
Hey everyone! I’m finally pulling the trigger on an RTX 4080 Super for my new build, but I'm stuck on picking the right power supply. I know 850W is the sweet spot, but I really want something with native ATX 3.0 support so I don't have to mess with those bulky 12VHPWR adapters. Reliability is huge for me, and I’d prefer a unit that stays relatively quiet even under heavy load. I've been looking at brands like Corsair and Seasonic, but there are so many models it's getting a bit overwhelming. Does anyone have a specific 850W PSU they'd recommend that is rock-solid and future-proof?
3 Answers
11
12/02/2026 4:00 pm
Quick question—what's your total budget? Before I give advice, you gotta consider that modern GPUs have massive power spikes. This matters because poor safety protections will literally crash your system if they aren't robust.
I'd look at:
- Thermaltake Toughpower GF3 850W 80+ Gold Full Modular Power Supply
It's usually $110 and has been rock-solid in my experience. It’s way cheaper than Seasonic but just as SAFE. gl!
5
12/02/2026 3:40 pm
For your situation, I suggest the Corsair RM850e (2023) Fully Modular Low-Noise ATX Power Supply. Im still kinda new but I dont like messy adapters and it only cost me $120. It stays really quiet too! Another solid choice is the Seasonic FOCUS GX-850 (2023) 850W 80+ Gold ATX 3.0 because Seasonics legendary reliability is basically unbeatable, right? Both have that native 12VHPWR cable you need for the 4080 Super.
2
12/02/2026 4:27 pm
Seconding the recommendation above! Those are great units, but tbh, I've seen the MSI MAG A850GL PCIE5 850W 80+ Gold Fully Modular Power Supply go for like $100-110 lately and it's a steal. Basically has everything u need—native 12VHPWR and Gold rating. In my experience, its just as reliable for a better price. Definitately look for sales on that one before buying... gl!
