Scared of source engine.

[boboyboxer]

So I just got a 660 and it runs a lot of games great including Arma 3 at high settings and ultra textures and all the anti-aliasing stuff on and vsync but TF2 and Gmod run at a much lower fps some times mainly Gmod cause it lags whenever I walk and its not my CPU, that's a i7 yet at the same time I can run Titanfall at 30 fps on completely maxed with 16x anti aliasing and all that stuff and CS:GO with all maxed out settings including anti-aliasing.

 

[lfkfkfkffs]

It just isn't you or your system apparently everyone is having that issue just look at the link https://facepunch.com/showthread.php?t=1287490