Yesterday, we noted that a 6-core version of Apple's upcoming Mac Pro had shown up in the results database of popular benchmarking tool Geekbench, the third variety of the machine to appear there since June. We compared performance of that machine to an 8-core version from late September but noted that a 12-core version from June was tested using an older version of Geekbench with a different baseline, making direct comparisons with that machine difficult. John Poole of Primate Labs, the company behind Geekbench, has