Here's Valve's viewpoint on user configurations: http://store.steampowered.com/hwsurvey/videocard/ http://store.steampowered.com/hwsurvey/videocard/ To underst

Here's Valve's viewpoint on user configurations: http://store.steampowered.com/hwsurvey/videocard/ http://store.steampowered.com/hwsurvey/videocard/ To understand a somewhat more casual audience, it's interesting to contrast the users of Unity: http://unity3d.com/webplayer/hwstats/pages/web-2012Q1-gfxcard.html http://unity3d.com/webplayer/hwstats/pages/web-2012Q1-gfxcar...