Some Windows users have stated being able to underclock the memory by greater than 150 MHz below the core speed using MSI Afterburner. Is this simply an artifact of the software? That is, is the actual memory speed only 150 MHz below the core, but the software reads whatever the user sets it to?
I use MSI AB to lower the memory clock down to 375. This is confirmed in CGMiner, and in GPU-Z (on the sensors tab, which reads actual values). I also notice a temp and power drop when I do it. It does work.