The main things to look for are a sufficient number of PCI express lanes, a high "turbo" clock speed, and sufficient memory capacity and bandwidth. The E5-2698 v4s used in the DGX-1 have 40 PCI express lanes, a 3.6 GHz…
Bottle necked on the CPU, yes, but probably only on a single (or a small number) of threads on the CPU. Xeon Phi will give you lots of slow threads. For the CPU you'd be better off getting a low-core-count processor…
The main things to look for are a sufficient number of PCI express lanes, a high "turbo" clock speed, and sufficient memory capacity and bandwidth. The E5-2698 v4s used in the DGX-1 have 40 PCI express lanes, a 3.6 GHz…
Bottle necked on the CPU, yes, but probably only on a single (or a small number) of threads on the CPU. Xeon Phi will give you lots of slow threads. For the CPU you'd be better off getting a low-core-count processor…