Actually, I realized that we were both wrong on the math. 2200 gflop or 3500 gflop are the specs for just one of the Fire Pro cards. Whoops, I was writing a lo

Actually, I realized that we were both wrong on the math. 2200 gflop or 3500 gflop are the specs for just one of the Fire Pro cards. Whoops, I was writing a lot of comments that day. So a Mac Pro with D700 GPUs has 7000 gflop/s and runs $4600 (list), whereas the Tesla K80 has 8740 gflop/s and runs $4900 or so. Since you still need a whole server to go with the K80, I stand by my thinking that it's not a great deal. We also don't need 12GB of VRAM for our use case, so that's a bit of a waste. In Nvidia's product line, price/gflop is not at its best in their highest end cards. AWS uses the Nvidia GRID K2, for instance. You're paying a lot for the double precision performance in the Teslas, and imaging doesn't need it.