Quote:
Originally Posted by Atak_Snajpera
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Rysen use slow data fabric for internal L3 cache communication between each CCX module. You have really higher latence for intel with DDR4 and L3 too. Use multiple instance is not good idea for AMD.
If you make 4K encoding with X265, you don't saturate memory controler and in this case 1950X@stock will produce better result than 7900X@stock.
You have the same problem with R7 1800X and i7-6900K. In all test in 1080p, R7 1800X@stock and i7-6900K@stock are on par for x265 encoding but not in x265 fhd benchmark.
if possible, reduce the instance number (2x or perhaps 3x 1080p instance will be enough and you will see that relative speed will be really higher for AMD).