Netkas notes that the 10.8.3 Beta released yesterday contains support for the ATI 7000 series graphics processors. The following was found inside the update:

ATI7000Controller.kext AMDRadeonX4000GLDriver.bundle

The new iMacs utilize Nvidia graphics, so these are likely for Mac Pro-level cards.  Netkas forum user Rominator, who discovered the ATI driver support, also claims to have gotten the ATI 7970 to work with OS 10.8.3 (above and below).

Time to start speculatin’ about new Pros?

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