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[D] RTX 2080 Ti NVLINK / PCI-E 8x

I did find some RTX 2080 Ti benchmarks that compare NVLink vs. no NVLink performance, like this one https://technopremium.com/blog/4x-rtx-2080-ti-with-quadro-nvlink-performance-test/

However, I did not find a benchmark so far comparing PCI-E 8x vs. PCI-E 16x performance and if NVLink could lessen a potential bandwith problem when using PCI-E 8x. Does anybody know about such benchmarks? Or do you have a system like that and could share your experiences?

Many servers nowadays have single or dual root PCI-E solutions to host 8, 10, or even more GPUs with PCI-E 16x, but for workstation boards you often only have 4 usable PCI-E slots (given dual-slot GPUs) and only 3-4 slots with real PCI-E 16x.

submitted by /u/daniel451
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Toronto AI is a social and collaborative hub to unite AI innovators of Toronto and surrounding areas. We explore AI technologies in digital art and music, healthcare, marketing, fintech, vr, robotics and more. Toronto AI was founded by Dave MacDonald and Patrick O'Mara.