> I'll try to post my i7-8700K numbers tonight.
All right, as promised. Due to Turbo mode and such, I'm not quite sure how to quote the speed in GHz on this chip, so I just listed the multipliers. It came stock at x44, but will OC to x46 stably. At x48 it can run MAME fine but can't handle long periods maxed out on all cores, such as when building.
I also tried with both stock 0.192 as well as the mame0192 tag built with the options Vas mentioned above: ARCHOPTS=-msse4.2 -mpopcnt -fomit-frame-pointer