Answer (1 of 4) Usually no 4000MHz RAM will be slower unless you overclock your Infinity Fabric (FCLK/Fclock) and memory controller (UCLK/Uclock) Ryzen CPUs work best with RAM running synchronously with the CPU's "Infinity Fabric" and memory controller ByIntel Core I5 9600k Vs Amd Ryzen 5 3600x Vs 3600 Hardware Times DDR4 30 vs 3600 Memory AMD continues to push the multicore performance envelope benchmarks show that the 3600 has a 27% overclocked 64core lead over the 9600K but that the iK leads by 14% on single to hex core workloads which translates to 10% higher EFps in most of the today'sWhen I looked at high speed memory kits deal hunting for a high performance budget Ryzen build, I came across this GSkill Sniper X DDR4 3600MhzThat speed is crazy, and we already know that as long as you don't get binned out of the silicon lottery, you should be able to hit memory speeds far above what's rated by AMD
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