I have another computer i72600 16G AMD Radeon R9 200 ；
Rendering JPG sequence,From one to the next takes 5seconds;
but the dual cpu E5 need 7seconds;
Are you doing it with CC 2014 on both? What are the memory and multiprocessing settings on both? Does your composition have any effects or expressions that disable multiprocessing? And all the rest of the questions in the link I gave you.
yes， Two computers use the same ae cc 2014,and the multiprocessing settings.
i7 2600 multiprocessing settings RAM alloction per background from 1G to 6G
dual e5 2667 it is the same set，and the same effects that any effects or expressions disable.
but the dual e5 2667 have another phenomenon even if a memory full rendering time without any change,