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@ 2011/06/24The Sapphire HD6670 Ultimate was able to give me a maximum clock of 870 MHz on the GPU core and 1140 MHz on the memory core, the Sapphire HD6750 was able to hit a maximum of 840 MHz on the GPU clock and the memory clock was a maximum of 1340 MHz. Finally the HD6770 had a maximum GPU Core clock of 960 MHz and 1320 MHz on the memory clock.
