Kingston used to rebrand Intel SSDs (same controller, just a smaller amouht of flash) for the "value market", so not surprising they were good.

The Samsung drives are poor when used on a NFS server with sync enabled - they are about 4x slower than the Intel 320 drives doing that. When used without sync, the same if no faster than the Intel drives - with the drawback of course that you've probably got corrupt data if you crash or lose power.

Stick to the Pro. The EVO are based on TLC which are cheaper to manufacture and have a reduced life-span.