I want to ask what is the cpu that will work for my motherboard that is better than the i5 750 because i have an i5 750 at 2.67 ghz and i want a better one because it will bottlenock my gpu wich is msi gtx 970 4g and 16gb ram so i want a new cpu that is better than the one i have and my motherboard is intel dp55wb with silverstone 600w and a 1200v 650w ups and thank you