So.... I purchased am 8 core MP in 2008 (2,1 model designation) 3 Ghz.It has a single HD 4870 Video card. Of late, it's been getting slower. I've upgraded RAM (now 24GB) and reinstalled 10.7.5 to a 256 MB SSD. Although this appear to help, video still stutters when playing 1080p 60FPS from our gopro (My 2012 retina MBP has no problems playing it). Geekbench 3 32 bit gives me a score of 10890 (1561 single core). The question is this: Any value to upgrading the video card or should I just sell it and wait for the new Mac Pro (or buy the current tower....I frankly like the tower better from an ease of use/upgradeability standpoint). thx for any help!