There has been much interest in our stats page (osstats) detailing different OS's and the FLOPS they produce:

We've been trying to come up with a way to standardize these numbers so that they can be more easily compared to each other.  That has resulted in a new FAQ:

We also plan on updating the osstats page to include both the Native FLOPS (which is on there now) and the more common x86 FLOPS, which allows for a more "apples to apples" comparison of FLOPS.  

Note that since x86 FLOPS are generally higher, this would increase our FLOPS estimate for FAH overall.  Our initial goal with our FLOP count was to try to be very conservative with FLOP counting on GPUs, but the motivation for x86 FLOPS is to try to be more consistent with other FLOP counting.