MCR is a the same as the 320... no benefit from higher power fans so for a silent rig it is good
and still gets its ass kicked by a thermochill 3 fan rad im sure...
but.. I saw someone with a mcr320 and a 2x120 radon the same loop claiming 38C delta between water and CPU temp at laod... so its not all about the rads... block and mount is MOST important... guess I am doing okay there