I9 was first introduced in June of 2017 with 7th Gen Core X
i9s are simply faster processors than are i7s – more cores, higher clock, more cache.
Core i9 Pros
#Higher core count
#More L2/L3 cache
#Highest core speeds – though usually only 100-200Mhz
#All have Hyperthreading
Best for – multithreaded and/or higher demand applications, extreme multitasking
