what is the double-precision flops rating of the gtx580?

Haven’t seen official figures, too, which was why I was asking. But if you compare your calculation to the tesla 2090 that also has the physically exactly same (I assume) GPU, the GF110, and it has 600+ DP Gflops. Also, the newest ATI consumer cards also manage to have 600+ DP gflops. If I remember, the GTX480 (GF100) also has 500+ DP gflops. How can the gtx 580 only have 190?