They sip power compared to the titans (which I had limited). I paid $110/card to my door. I only have a 2u chassis. I just got rid of my old Dell 900 series machines. Next affordable chassis for me is either an r740 or r7425 if I decide to go that route. I also need a new workstation too, was looking at the precision 7920 rigs as well. I found a pair of 2nd gen Xeons that should out perform the 3900x I have now.