Why is there no i6 processor?

(1) This is only because of Intel's naming system. There are only i3, i5 and i7, just like naming people. There is no reason, but the namer (company) set it up artificially.

(2) At present, Intel's layout in the home cpu market is the junior Celeron series (such as G 1840), the advanced Pentium series (such as G3240) and the advanced I series, while Core I is divided into three grades: low, medium and high, i3 is the entry performance level, i5 is the mainstream performance level and i7 is the high-end heating performance level.

(3) Naming concept (metaphysics)

There is a saying that all 3 5 7 are prime numbers, which is the preference of Intel's decision-making level. Interestingly, Intel's competitor AMD chose A4, A6, A8 and A 10 when naming its APU family. The naming of two competitors' cross numbers is also a tacit understanding.

There are many cases named according to this interval number, such as BMW's 7, 5 and 3 series, steak's 3, 5 and 7 rare and so on.