Day of Defeat Source on an Imac 2011

This video is a test of running Day of Defeat Source on my Imac on 1920X1080 I get 150+ fps. Runs pretty well!.Let me know what you think. Music by my brothers band Makeupbreakup. Check them out! https://itunes.apple.com/us/artist/makeupbreakup/id284494562 Imac Specs: Mac OS X Version 10.7.5 Lion Processor: 3.06 GHz RAM: 4 GB ATI Radeon HD 4670 256 MB graphic 21.4 Display