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8x NVIDIA A40 Cluster vs. 4x NVIDIA SXM4 A100 Cluster
Jan. 16, 2022, 7:19 p.m. | /u/xenomarz-84
Deep Learning www.reddit.com
Hi Guys,
My research group is interested in buying a deep-learning GPUs cluster. After eliminating over-budget options, we have left with the following two options to choose from:
- 8x A40 48GB PCIe GPUs (with 2-way NVLink bridge between each pair of cards)
- 4x A100 80G SXM4 with 4-way NVLink
Which option do you think will yield better performance in general?
After reading this blog, I understood that the real bottleneck in GPUs for deep-learning is the memory bandwidth, which …
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