The first benchmarking tests are in on the new 2011 iMacs, and early results show a fairly consistent 25 percent improvement across the board over the previous models, and a 70 percent average improvement over the last of the Core2Duo iMac models, Primate Labs reports. It should be noted that the company used its own Geekbench 2 to obtain their results, which does not measure video card or storage improvements, being limited to just processor and RAM performance.