Signs of Apple’s long-in-waiting Mac Pro update emerged in earnest after a discovery in the latest Mac OS X 10.7.3 betaNetkas found code references in the ATIRadeonX3000 driver extension to “Tahiti,” the known codename for AMD’s upcoming high-end desktop Radeon HD 7000 line. The chipsets are expected to be the first 28-nanometer chips and have a completely new, liquid-cooled graphics core meant to improve general-purpose computing tasks like those in OpenCL.

Since the Mac Pro is the only system in the lineup that uses desktop graphics cards (all others including the iMac use a mobile graphics chipset) I’d say this is a pretty good bet.

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