clearly in i7's favor? you gotta look at those numbers again. they fluctuate a lot, in one test i7 went higher, in next test i7 went lower. run it in the morning and noon, you got different result. whatever the favor you got, it's not accountable.
That's why I'm confused. ;-) What is the average are the testing conditions reproducible - were the i5 and i7 versions tested under the same conditions at the same time with the exact same software/configuration installed. I'm not so bothered about fluctuations from time to time by the same machine.