I have the Mac pro 1,1 I recentally got from ebay. Loving it 2x 2.66 ghz duel xeons and 8gb ram steal for $180 on ebay. but anyway the question here is how well will my msi geforce gtx 650 work ordered it used to go into the pro once my pci cable gets here and will it work in lion. i know that the 650m was used in 2012 mbps so could i keep a lion parition around and boot into it from my 1,1 pro and how well would the 650 proform in el capitan. hyped to get this mechine going so i can use it as main desktop as aposed to my 2014 mac mini. also would gaming proformance be ok m alienware x51 r 3 has a core i3 6100 8gb ddr4 and a gtx 745 4gb ddr3 would the pro with the 2 xeons and the gtx 650 2gb gddr5 be adiquate for modern gaming like fallout ark wow diablo and so on