im using reaper so mem clocks dont make much difrents  1250 is the standard seting on my cards
it makes 4w difrents lowering the mem to 1000 on the 7950 vaporx oc edition but makes them less stable and gets 10kh less

( i have 20 rigs with 4 cards and 1 test rig with 3 cards )

picks of my test rig its only cpu watercooled because i game on that rig ( amd 1090t ) http://s1315.photobucket.com/user/zackclark70/library/