Look see: Compare the Mid 2013 i5 and i7 processors

[waitingallday]

Processors
Intel comparison chart of the i5 and i7 processors Apple has early access to:
http://ark.intel.com/compare/75028,75114

Intel Core i5-4250U
http://www.cpu-world.com/CPUs/Core_i5/Intel-Core i5-4250U Mobile processor.html

Intel Core i7-4650U
http://www.cpu-world.com/CPUs/Core_i7/Intel-Core i7-4650U Mobile processor.html

Machines (just a sample test)
MacBookAir6,2 Intel Core i5-4250U @ 1.30 GHz
2 cores, 4 threads
4Gb Memory
Overall Geekbench Score: 6051
http://browser.primatelabs.com/geekbench2/2030622

MacBookAir6,2 Intel Core i7-4650U @ 1.70 GHz
2 cores, 4 threads
8Gb Memory
Overall Geekbench Score: 7097
http://browser.primatelabs.com/geekbench2/2031166

 

[bp1000]

Benchmark results can vary so much

i7
http://browser.primatelabs.com/geek...e+i7-3667U"+frequency:2000+bits:64&sort=score

i5
http://browser.primatelabs.com/geek...e+i5-3427U"+frequency:1800+bits:32&sort=score

 

[paulrbeers]

Not sure your point on this thread? Apple used the fastest ULV processor in the i7 that had a decent GPU (I'm willing to give up 100mhz for the HD5000). Anything faster would have been a 28w part.