Do any of you have a suggestion for a complete benchmarking tool I can use to compare the overall gaming performance of my OSX, Win7, and Linux rigs? Most of the ones I've used in the past are Win only (3Dmark) or processor focused (Geekbench). I want to compare my 2012 iMac running OSX Steam games against my 2011-era homebuilt PC and decide if it will be worth Dual-booting the iMac for better gaming under Win7.
The most important comparisons will be win to OSX. Linux would be a nice extra when Steambox-building time comes along.