These chips are ULTRA rare to find and using a EVGA SR-2 motherboard, they can still be the better and most powerfull CPU rig in the world. On Aida 64 CPU Queen test these 12 cores-24threads do 92k on default clocks!
I use them at 4.5ghz for daily use on Watercooling with 1.35v and for RIC mining, and at this speed, Aida64 CPU queen is "just" 122k, which when compared to a 16 core 32 thread E7-2670 cpu is only 100k!!!
I have about 1100cpm's on protoshares mining with thse cpu's and about 90 2ch's for Riecoin mining!
I have 4 of these, but will only sell 2 of them because now all things are just to low and I need to reduce the power for now.
These are really expensive chips, and on ebay they cost over 900 euros or $1250 a piece, just see for yourself: