I’m using Rhino 5 and Vray 3. As I add lights, both modeling and rendering times have crashed. The biggest problems are around doing modeling (rotate, drag, zoom, etc) and vray interactive rendering. For final or artistic renders, I’d like more speed, but I can allow the machine to run while I’m away from the computer.
Thinking about these three CPU options:
i7-7700k (four core) at 4.8ghz
i7-6950x (ten core) @ 4.3/4.1 ghz v3
i9-7900x (ten core) @ 3.3ghz (4.3 “turbo boost”)
To improve interactive rendering I’m looking at the Nvidia GTX 1080ti.
I read the forum and here is what I gathered from posts made about 2014 and 2015 (I imagine I’m over-simplifying):
- Modeling (rotate, drag, etc) uses CPU - fewer cores or a single core at higher Ghz are faster than a slower multi-core CPU. Modeling tasks are sequential so do not lend themselves to divided CPU threads.
- Rendering uses multi-core CPU, so if rendering is the priority, then a multi-core CPU is preferred over a faster single or quad CPU. Rendering can be divided among multiple threads.
- Vray interactive mode relies heavily on GPU, so more Cuda cores are preferred here - rather than faster CPU speed or more cores in a CPU.
Has the thinking on multiple cores evolved any since 2014/2015?
What would you prefer among the i7-7700k, i7-6950X and i9-7900X CPU’s?
I look forward to your comments. I don’t have a lot of gear experience, so let me know if I’m off base.