4ghz its just a psychological barrier... If you reach 3.8 3.9ghz should be great too and maybe way less voltage and heat.
It's funny that almost all of of this architecture CPUs are hitting a wall at around 4ghz...even the ryzen7 with way less cores.
Wonder what is holding them.
Yeah, I did stupid shit and kept trying for 4GHz. Getting 3.8 was a cinch. Getting 3.9 took a couple hours of tweaking. 4.0 required wasting a shitload of time and pushing the voltage right to the edge of safety. But as Dan said, this is [H]ard shit here. No [L]imp, my dude.