You are comparing i5-3470 @ 3.60 GHz vs i7-4510U @ 2.00 That U on the end says it's ultra low voltage CPU. They are not similar. One is a very limited few watt

You are comparing i5-3470 @ 3.60 GHz vs i7-4510U @ 2.00 That U on the end says it's ultra low voltage CPU. They are not similar. One is a very limited few watts CPU for mobile devices, the other one is a desktop variant allowed to pull all power it wants. Some semi-relevant information of how branding can produce confusion: https://www.laptopmag.com/articles/intel-renames-core-m-core-i https://www.laptopmag.com/articles/intel-renames-core-m-core...