Hi men. I ordered the mid-range 24" iMac (2.93Ghz) with the Geforce GT 120 discrete chip. However, some benchmarks place the old Radeon 2600 Pro which was in the last gen's middle segment above the GT 120 (9500/8600)! Can this really be true as the new model is 300 more expensive, and downgrading from an old cheap GPU to an even slower makes absolutely no sense. Am I missing something with the markings, like a mobility modifier? Thanks.