Quote:
The difference in i3-i7 is the number of processing cores.


Found this description on the web.

  • The CPU frequency and thermal output (TDW) is largely not determined by the Core i_ name
  • Core i5 and i7 both have Turbo Boost while the i3 does not
  • Core i5 and i7 CPUs have 4 cores, while i3 CPUs only have 2
  • Core i5 CPUs lack Hyperthreading
  • Core i7 CPUs have more Smart Cache than i5 CPUs, which in turn have more cache than i3 CPUs
  • Core i5 and i7 CPUs have the same graphics, although the speed of that graphics will depend on the individual CPU. Core i3 CPUs have variable graphics depending on the price-point of the CPU.

So while i7 CPUs do have overall better specifications than i5 CPUs, there is actually quite a bit of overlap between the two except that i5 CPUs do not support Hyperthreading. Especially in terms of frequency and thermal output, the two lines really are not very different. For i3 CPUs, the main difference is that they only have two cores, a smaller cache, do not support Turbo Boost and have overall lower thermal output than i5 and i7 CPUs.

John

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