Intel Core i7-4578U: specs and benchmarks
Intel started Intel Core i7-4578U sales 21 July 2014 at a recommended price of $426. This is Haswell architecture notebook processor primarily aimed at office systems. It has 2 cores and 4 threads, and is based on 22 nm manufacturing technology, with a maximum frequency of 3500 MHz and a locked multiplier.
Compatibility-wise, this is FCBGA1168 processor with a TDP of 28 Watt. It supports DDR3L-1333, LPDDR3-1333 memory.
It provides poor benchmark performance at 4.16 percent of a leader's which is AMD Ryzen Threadripper 3990X.