MacBook Pro GPUs seem to be underclocked

April 19th, 2006 · No Comments

I expect the full speed to be enabled by hack shortly, why were underclocked to begin with? Could this a safety issue, is the GPU producing too much heat for the MacBook to disapate?

Apple appears to have underclocked the ATI Radeon Mobility X1600 graphics chip in its MacBook Pro laptop. According to one online report, the GPU’s core runs 35 per cent slower than the clock speed recommended by ATI. The memory clock is 41 per cent below par.

The speed differential was spotted by a poster on French-language site MacBidouille, the site reports. The correspondent ran ATI’s ATI Tools utility - version 0.25, a beta release - running under Windows XP. The software revealed his MacBook Pro’s X1600 was clocked at 310MHz and the memory at 278MHz (556MHz effective).

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