So let's say if I were to only run it for Boot Camp in my Mac Pro, I would still need some kind of OSX installed in my drive so I can setup the Boot Camp partition...I know that but my question is: Without any power/fry issue, it looks like 7950 released for Mac Pro is still kind of waste of money, because with the similar amount I can get the PC version of 7970, 680, or 670. Out of those 3, the best should be 7970 and 680. (Please note I'm only talking about Boot Camp gaming performances here). So if I were to just buy 7970 or 680, they won't have EFI boot screen...so I need to setup the default boot as Mac OSX... Question 1: Do 7970 or 680 have any risk of frying my computer? Question 2: Do 7970 and 680 both run without any issue in 10.8.3 without any flashing requirements? Question 3: 7970 or 680? I saw the benchmark in Barefeats but it looks like 680 is slightly better. But at the same time 7970 does not need any flashing even using PC card. Is this correct? Then is 7970 the best way to go GPU? Thanks. ---------- My ultimate concern is that if 7970 and 680 both have 1) no issue frying Mac Pro, 2) no issue with looking at HDD choice screens if I were to press OPTION button in the boot screen (as far as I know, I just won't see the Apple screen?), lastly 3) no issue running on Mac OSX also (Boot Camp won't be a problem cuz it was PC GPU in the first place as far as I know). Thanks..