Counter strike source from Steam on Macbook Pro, OS X Mavericks VS Boot Camp Windows 7

The age old question... On the Macbook Pro Retina should I run my CS:S on OS X or Mavericks??

The Macbook Pro in question is the 15" Retina dedicated Nvidia GT 750M.

OS X Mavericks recording done using QuickTime player
Windows 7 recording done using Fraps

Recoding significantly reduced the FPS but you have to appreciate this is not a gaming rig, just an occasional gaming machine when on the move and miss getting pwned. :)

Due to the above the I did the FPS test and then displayed the a screenshot showing the result without recording.

If you need to me do anything specific just drop me a message.