#VRAY RT OPENCL BENCHMARK FULL#

Unfortunately, this is not supported, and the best you can achieve with Threadripper CPUs is a x16, x8, x16, x8 Configuration.ĬPUs with a high number of PCIe-Lanes usually fall into the HEDT (= High-End-Desk-Top) Platform range and are often great for CPU Rendering as well, as they tend to have more cores and, therefore, higher multi-core performance. You could theoretically run 4 GPUs in x16 Mode on a Threadripper CPU (= 64 PCIe Lanes). (For a total of 16 PCIe Lanes, given the Motherboard and Chipset supports DUAL GPUs and has sufficient PCIe Slots) Usually, there is a negligible difference in Rendering Speed when having current-gen GPUs run in 8x mode instead of 16x mode.Īt x8 PCIe Bandwidths, you could run two GPUs on an i9 10900K, or Ryzen 9 5950X. This also means they use up fewer PCIe-Lanes (namely 8x). GPUs, though, can also run in lower bandwidth modes such as 8x PCIe 3.0 (or 4.0) Speeds. They have 64 PCIe-Lanes (e.g., the AMD Threadripper 2950X or Threadripper 3960X)

#VRAY RT OPENCL BENCHMARK FULL#

If you want to use more than one GPU at full speed, you would need a different CPU that supports more PCIe-Lanes.ĪMD’s Threadripper CPUs, for example, are great for driving lots of GPUs. Mainstream CPUs such as the i9 12900K/5950X have 16 GPUCPU PCIe-Lanes, meaning you could use only one GPU at full speed with these kinds of CPUs. Image-Credit: MSI, Unify x570 Motherboard – A typical PCIe x16 Slot Top-tier GPUs usually need 16x PCIe 3.0 Lanes to run at full performance without bandwidth throttling. Different CPUs support a different number of PCIe-Lanes. GPUs are connected to the CPU via PCIe-Lanes on the motherboard. That said, though, there is another factor to consider when choosing a CPU: PCIe-Lanes. Since GPU-Render Engines use the GPU(s) to render, technically, you should go for a max-core-clock CPU like the Intel i9 12900K or the AMD Ryzen 9 5950X that clocks at 3,4Ghz (4,9Ghz Turbo).Īt first glance, this makes sense because the CPU does help speed up some parts of the rendering process, such as scene preparation. Let’s take a look: Best Hardware for GPU Rendering Processor So, what are the most affordable and best PC-Parts for rendering with Octane, Redshift, VRAY, or other GPU Render Engines? Graphics Card (GPU) based render engines such as Redshift, Octane, or VRAY have matured quite a bit and are overtaking CPU-based Render-Engines – both in popularity and speed.īut what hardware gives the best-bang-for-the-buck, and what do you have to keep in mind when building your GPU-Workstation compared to a CPU Rendering Workstation?īuilding an all-round 3D Modeling and CPU Rendering Workstation can be somewhat straightforward, but optimizing GPU Rendering performance is a whole other story.

Is the GPU or CPU more important for rendering?.

Answers to frequently asked questions (FAQ).

Vray rt opencl benchmark