Default frequency
Note that most advantage in x264 and x265 are due to newer AVX and such.
Now on same 4.5Ghz frequency
Note that memory is not equal here, DDR4 memory is faster (3200Mhz vs 2133Mhz)
Actually, from this numbers it means that best upgrade for 2500K-2700K owners is.. modern Nvidia GPU.
Even GT 1030 will get you within 20-25% of 8700K in real project export time with
It looks like you're new here. If you want to get involved, click one of these buttons!