lakimens :
Wait, what? Wasn't Cannonlake supposed to be built on 10mm architecture?
And also, Intel will release a few new CPUS with very small, insignificant clock speed increases.
7740k is the i7.
Guess "minor" was a bit more of a downplay then intended. Thay are switching to 10nm and will see slighly higher boost then skylake to kabylake, but doesnt sound like too much more.
Bottom line would not wait 10 months for a hopefull 15% improvement.