The Intel Core i5-6400 is a Skylake based processor, released Jul 2nd, 2015. The Intel Core i5-6400 is a 177 mm² CPU on the 14 nm Intel node. It's 4 cores @ 2.70 Ghz (up to Ghz boost) alongside 6MB (shared) cache puts this CPU at about 23.35% compared to our reference processor; the Intel Core i9-9900K.
4 Cores
2.70 - 3.30 GHz