I want to play only games on windows side and do all my work in mac os . Itwas very hard to decide which OS to choose and install via bootcamp. Win XP or Win 7. Windows xp is having Dx9 and Windows 7 is having Dx11.My Q. is: 1) Will i be getting more FPS in Xp or 7. 2) Win 7 is better in multicore oprations and not Win xp. 3) Will Dx11 games work in Dx9. 4) Which OS will provide better performance, give personal suggestions. Thanx Bye.