intel is not as memory dependent as AMD but we are talking half speed here on AMD a 10% increase in speed relate to pretty much a 10% performance boos on ryzen up to 4GHz, intel will see very minimal differences from 3200 to 4000, but dual channel is a 100% difference in speed (1 channel at 4000MHz will access at 4000MHz, 2 channels at 4000 will make it equivalent to 8000MHz) so will make a tiny difference