- Aug 17, 2019
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I don't render with CPU period (one of the lucky few that got a 3080 at MSRP), just working off of general knowledge and what I've seen with how Daz interacts with CPU rendering. From what I'm aware of, it's a bit more unstable and can end up slowing renders down, though the latter seems to be more case-by-case.Of course there are some differences outside, CPU rendering puts my cpu usage (and temp. + power) to max at 100%, about 75c, and 142W. Vs. GPU only at about 9%, 62c, and 71W.
I have also intentionally underclocked my GPU (because I CANNOT AFFORD TO LOSE IT) so that may be the cause for the rather substantial difference.
Rendering with CPUs generally kick out a lot more heat and tend to end up with noisier renders (in Daz, at least.), but 75c seems awfully low - likely due to how short your renders are coming out. I imagine, unless you have a surprisingly good Cooler/AIO, those temperatures will rise considerably as you render longer. Sustained high-load heat will never be good for CPU, Intel or AMD, nor is constant 90-100% utilization. Not saying that's the case here, but I'd experiment with longer/heavier renders and see what those numbers look like afterwards.
The other reason you see others say only using a GPU in Daz is because Daz (or rather Iray) is optimized for Nvidia GPUs, which is naturally going to make it a bit faster. Of course, this is all a moot point if you're not planning on doing VNs and just want to make one-off still renders or something of the sort.