Processor
There are different versions of V-Ray. Users of V-Ray Next CPU/Adv should of course focus on CPU power.
Core count affects performance to the degree that you may even want to opt for a dual CPU machine if it’s within your budget. Note that frequency (GHz) plays a role as well.
V-Ray GPU/RT can utilize the CPU more effectively than in the past, but the GPU is of course more important for this version.
Not all user workflows are the same, so be sure and contact us for an optimized configuration.
Memory
The amount of memory you will need depends on how many programs you will have open at any given time alongside V-Ray, the complexity of your scenes, and how large the files are that you will be working with.
A good starting point in deciding how much RAM you should go for would be to check your current usage via Windows Task Manager.
Graphics Card
V-Ray CPU does not require more than a mid-range GPU.
V-Ray GPU on the other hand can benefit from multiple GPUs.
Performance is affected by GPU speed, VRAM, and number of GPUs. While Quadro cards are not a requirement, higher end Quadro GPUs feature far more VRAM than GeForce cards.
You may want to consider starting with a single large and powerful card and adding a second one at a later date.
Storage
In the past, computers were held back by slow mechanical hard drives.
Unless you are storing files which are not accessed too often, in which case mechanical hard drives might be a better choice, Solid State drives should be used for everything else.
Having everything stored on SSDs means you’ll be able to copy, move, open and save files quickly and PC and program start times will be reduced.
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