4 ms·
While you're technically correct, assuming you're using PCIe 4.0 or higher, the performance difference between x8 and x16 is practically zero.
by angoragoats 2y ago
While you're technically correct, assuming you're using PCIe 4.0 or higher, the performance difference between x8 and x16 is practically zero.
- metadat 2y agoIs this because the graphics cards are not using all available PCIe bandwidth? Or why?
- angoragoats 2y agoYes. In fact, even running a video card in a 4x slot (again, assuming PCIe 4.0) results in only a modest (5-20%, depending on what you’re doing) drop in speeds.
- Tepix 2y agoEven for training?
- angoragoats 2y agoI haven’t done a ton of training but everything I’ve heard and read indicates that PCIe 4.0 8x provides enough bandwidth for just about any application. You might see a negligible drop in performance, but no more than a few percent.