Currently I am running a phenom 810 with a cheaper motherboard from an hp p6230y desktop. I am either going to get a gtx 660 ti or gtx 670 used for a gpu. I am worried that my current motherboard or cpu will create a bottleneck. Do you think an i5 upgrade is worth the price of 300 from microcenter for the i5-4670k and the asrock extreme 4.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01859871&cc=us&dlc=en&lc=en
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01859871&cc=us&dlc=en&lc=en