This can be look at one of two ways: first, can a Q6600 game at todays resolutions/settings? No, it's not going to be pushing 4k with max details. The second way you can look at it is can it game at more realistic settings; 720/1080 at medium settings with ample memory, video card, ssd, etc? Sure, most of the time. But don't get me wrong, I wouldn't recommend anyone build a system around a Q6600 today but if you've got one in the closet with a decent video card to throw in it for a 2nd/backup gaming rig, why the hell not, what have you got to loose? Also, there are plenty of other uses for a Q6600 today, they are not dead in the water yet. Home built router, file server, decent Plex server if you don't get too crazy with transcoding, web surfing rig, office tasks like Word, Excel, etc. Still very usable today (I say this as I type this on a C2D work machine I wish was a Q6600) but certainly not a high end gaming CPU.