"unlike a real datacenter, it's only good for floats." That's actually not true. You'll find integer throughput is rather high on GPUs also. And the memory band

"unlike a real datacenter, it's only good for floats." That's actually not true. You'll find integer throughput is rather high on GPUs also. And the memory bandwidth is very high too. "miniature 4-function calculators": make that 5, where the fifth function is a really fast special function unit that can do very fast sin, cos, sqrt, 1/sqrt, and many other functions.