That GPU alone can draw nearly 600W
850W would probably cut out the second a game was loaded
Comment on [deleted]
Deebster@infosec.pub 4 weeks ago
I think that PSU is larger than necessary for running a PC with a single graphics card - I haven’t done the maths but it’s probably comfortably under 850W (a common PSU size).
The memory is huge but fractionally “slow” at CL32 - I’d say 32GB of CAS latency 30 memory would make more sense (or even CL28). With such premium kit, you might even be able to use DDR5-6400 (running at 1:1 mode).
It’s a huge price though - a really good PC should cost about a half of that (or even a third depending on your local prices), those components are in the “money’s no object” end of the range. It does match what you asked for, so if you don’t mind the price it’s a solid build using all of the latest and greatest speeds and versions.
9point6@lemmy.world 4 weeks ago
kyub@discuss.tchncs.de 4 weeks ago
The 5090 might most of the time draw like 350W but like many top-end cards (also from AMD) power draw can spike really high and can reach double that even for very short moments. So you need a beefy power supply regardless. For a 5090 in combination with a top-end 16 core CPU I wouldn’t recommend anything under 1200W (so you still have some wiggle room. Power supplies are also at most efficient when they’re not at ~95-99% capacity but at ~80%).