Apple Storerob-ART morgan reports for Bare Feats, “The ‘mid 2010′ iMac Core i7 is rated at 2.93GHz. That’s ony 5% faster than the ‘late 2009′ iMac Core i7. But the memory rating is 25% higher (1066 vs 1333MHz).”

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“Let’s see what difference those to stats make when running multi-core aware apps,” morgan writes.

“The ‘mid 2010′ iMac Core i7 was 3% to 23% faster than the ‘late 2009′ iMac Core i7 in our various CPU intensive tests,” morgan reports. “If you are comparing it to the MacBook Pro with a ‘mobile’ Core i7, the new iMac Core i7 is 43% to 120% faster running our ‘multi-core aware’ suite.”

morgan reports, “Our comparison to the 8-core Mac Pro Nehalem is a bit unfair. But suffice to say that if you are comparing the ‘mid 2010′ iMac Core i7 to the 4-core Mac Pro Nehalem running at the same core frequency (2.93GHz), the Mac Pro is at most 20% faster. Good news if you don’t need the expandabilty of the Mac Pro.”

Much more benchmarking goodness in the full article here.

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The new muscle inside Apple’s new iMac and Mac Pro lines – July 28, 2010
OWC announces memory upgrades up to 16GB for new mid-2010 Apple iMacs – July 28, 2010
Apple updates iMac and debuts new Multi-Touch Magic Trackpad, Apple Battery Charger – July 27, 2010