Your arithmetic is in the ballpark -- the article says this machine has 40k processors. But, firstly, these are double precision numbers, I believe that lowers

Your arithmetic is in the ballpark -- the article says this machine has 40k processors. But, firstly, these are double precision numbers, I believe that lowers nvidia performance substantially. Furthermore, scaling is not as trivial as putting them in the same room -- you need massive networking, cooling and power supply. Also, while the LAPACK benchmark can work pretty well on GPUs, the stuff that the computers actually is used for might not.