Ok so I have an Intel 8700k 6-core. Its a great CPU but there are Xeons and Threadrippers with many more cores. I am also using a GTX 1060 just for my display and an RTX 2070 just for rendering.
It’s clear to me that a better GPU like a 2080ti will give me faster renderings, but the light cache and image save to file times don’t utilize the GPU. Is there any way to change this? It seems weird having to upgrade from an 8700k, but I hate waiting for there light cache. It’s especially annoying whenever I make tweaks to test a change with a low resolution. I will click the render button hundreds of times just to see quick previews, but no matter the resolution, the cache times are always the same.
If I am stuck with CPU, is there a limit to the core count that will speed up the cache?