Re: gaming pc (expert thread)
didn’t check pro 
Actually ddr3 were present 3 years back on graphics card but desktops memmory was rare and expensive, remember getting gskill 4gb for 120 dollars in 2009 from us,here in india it was 6-7k, now the price is 30-40 dollars.my current 570 gtx uses ddr5.graphics card is always generation faster in memmory compare to desktop, fastest one is XDR used in consoles (xbox360,ps3)
I think still u can play most of them with low-med settings .since resolution would be even lower on pro.best thing would be download call of duty black ops,its lesser hardware demanding game and still looks good, if u haven’t played call of duty before, download call of duty 4. best in the series, 4 years old still looks good,should be handled by ur mac