My girlfriend's Mac can run DayZ way better than my PC

[timmmmehh (DayZ) 0]

Hello there. I just wanted to know if it was normal for my girlfriend to be getting extremely good frame rate on her mac(with windows bootcamp) when I have very inconsistent frames on my gaming PC. She can get up to 100+ FPS and can maintain a good 60 in most areas most of the time and never drops below 25 even in cities. She keeps her settings on high.

 

I have a gaming computer with windows and cant get more than 40 fps anywhere on the map and usually have below 30 in most places and have 15 - 25 in cities. I keep my settings medium-low

 

I just dont understand. How is she getting such amazing FPS on a Mac? Is this known? 

 

My Specs:

 

CPU - Intel i5 3570k 3.8 GHz

GPU - EVGA GTX 670 FTW

RAM - 8 GB Corsair Vengeance DDR3

 

GF's Specs on iMac:

 

CPU - Intel i5 3470S 2.90 GHz

GPU - Geforce GT 650M 511MB

RAM - 8GB DDR3

[IkaikaKekai 1957]

100+FPS?  I smell bullshit, and that's ignoring that you said it was on a Mac.