Quote:
Originally Posted by CorsiHockeyLeague
It's just hard to tell what the spikes will look like on the 4090 and what the max power draw will be for high-end CPUs. If the 3090 is spiking over 650 could the 4090 hit over 750? A 1000w PSU is probably going to be okay anyway I guess provided your CPU doesn't get into that 300 range (12900ks has been shown to be able to get close to that). Getting a little closer though.
Incidentally it's pretty hard to figure out what is going on with system power in Ubuntu, I'm finding. A lot of stuff on Linux either doesn't work, or did but breaks when something updates. I can't get an overlay a la Afterburner to work, and apparently it's a known issue. I might have to abandon this Linux thing just for the sake of convenience.
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I mean, the games that spike your CPU (4Xs, RTS, etc.) Aren't the ones that will spike the card. High end PSUs can handle momentary overdraw, and 240v circuits typically run more efficient by default than 120v as well. Also from what I'm reading, the 3090/Ti transient load spikes are ~510w max.
I would be shocked if we ever see a game that maxes your CPU draw and GPU at the same time, and even a Premiere render with CUDA effects only pushes a GPU to ~50% load.