I am not sure where you get those numbers. Both a Knights Landing Xeon Phi and a Tesla K80 are about 3 teraflops for $5000. Comparing GPUs with Xeons makes no

I am not sure where you get those numbers. Both a Knights Landing Xeon Phi and a Tesla K80 are about 3 teraflops for $5000. Comparing GPUs with Xeons makes no sense.