I started yesterday testing the 2009 iMac 24" 3.06 with GeForce 130 GT. I've also got the 2008 iMac 24" 3.06 with GeForce 8800 GS in the lab.
Here are some results at 1920 x 1200 "High Quality":
CoD4
2008 = 34 fps
2009 = 38 fps
ET:QW
2008 = 60 fps
2009 = 82 fps
Halo UB 2.03
2008 = 127 fps
2009 = 137 fps
Prey
2008 = 78 fps
2009 = 88 fps
Both beat the Mac Pro Nehalem with GeForce 120 GT but lose to a 2008 Mac Pro with a GeForce 8800 GT.
The 2009 with Radeon HD 4850 should be in the lab in a few weeks. I'll report back with those numbers when I have them.
Here are some results at 1920 x 1200 "High Quality":
CoD4
2008 = 34 fps
2009 = 38 fps
ET:QW
2008 = 60 fps
2009 = 82 fps
Halo UB 2.03
2008 = 127 fps
2009 = 137 fps
Prey
2008 = 78 fps
2009 = 88 fps
Both beat the Mac Pro Nehalem with GeForce 120 GT but lose to a 2008 Mac Pro with a GeForce 8800 GT.
The 2009 with Radeon HD 4850 should be in the lab in a few weeks. I'll report back with those numbers when I have them.