8
1
I just purchased a new x1 Carbon with all the bells and whistles. I got a Core i7-5600u which I really thought would be the better chipset to get. But now I'm looking at some benchmarks and the i5-5300u seems to outperform the i7 on every site. Now I understand that these benchmark softwares can't perfectly gauge the power of a chip but why is there a common advantage for the i5? Even though the i7 has a higher GHz rating it keeps scoring lower. Is there a technical reason or are the benchmark software created in such a way that it favors the current i5 architecture?
Here's two links: http://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i5-5300U+%40+2.30GHz&id=2459 http://cpuboss.com/cpus/Intel-Core-i7-5600U-vs-Intel-Core-i5-5300U
2It's down to thermal throttling. They note that the fans on the XPS with the "slower" CPU spin up and get loud very quickly and so it's able to sustain a boosted GPU speed of 900MHz throughout the benchmark. The X1 on the other hand gets boosted to 900MHz but then falls back to 750MHz after a while. This is indicative of thermal throttling. – CadentOrange – 2015-03-06T10:44:02.973