CarolZZ

Thank you for the response, that is very clear! Thank you so mcuh! Thank you for the response! It is very clear and explained just what I get confused! just wondering, since no difference why do they make X16...lol

Hi I am really new to hardware things... I am planning to use 4 GPU each with 16 PCIE for my WS. I am not sure whether a single CPU is enough for that, as the single CPU has only 40 PCIE. I saw on other place that ASUS X99-E WS can support 4 GPU with single 40-PCIE CPU. But I am confused...PCIE are for communications between GPU and CPU (if I understand it correctly), so if the CPU has only 40 PCIE, how could the motherboard make a difference?