I have had both i5 and i7 video cards in 2 successive macs. Seems to me the i5 was more stable, less dropout when zooming and no fading of the screen when I went off the paper, albeit a might slower. I left my i5 in Sweden and have my new i7 in NY. I need to check my Sketchup 3d and will repost. Anyone have similar issues with the i7?
ww
2.8 GHz Intel Core i7
8 GB 1067 MHz DDR3