Question: what is a key difference between the poweredge r940xa and the poweredge r940?
Answer: Keep in mind, the R940xa is substantially different from the PowerEdge R940 server, which is a 3U system that only supports a maximum of two GPUS, and features a separate CPU mezzanine for processors 3 and 4. On the R940xa you get a 1:1 relationship of processor to GPU.