I have an old dual v2 xeon. I bought it as a referb, and came with 8x8gb. I happened to have four 16gb DIMMs that I think are compatible. So I swapped those out with 4x16gb, hoping it would be faster. But I am not really sure how fast this old machine can run memory, regardless of the speed of the DIMMs. Here is what CPU-Z tells me. Is it possible to tell by this info, which is faster? I am having trouble telling because one has a higher frequency, but the other has lower latency. Of course, I could be reading this all wrong.
8x8gb:
4x16gb: