Question about tech specs for Graviton 2

Each core can theoretically do 20GFLOPs of double precision math when using fused-multiply-adds.

Hello,
I am not really sure how you came up with that specific figure. If I assume a frequency of 2.9 GHz, it yields a bit less than 7 (double-precision) FLOPs per cycle. A value of 8 could be expected so my guess is that other limitations decrease the theoretical maximum value per core.
Thanks.

Edited by: afernandezody on May 13, 2020 6:38 PM

The cores each run at 2.5GHz. and can do 4 dual precision multiply accumulates/cycle.

Not sure why (maybe I read it somewhere) I thought that they run at 2.9 GHz even though the console lists them at 2.5 GHz. Thanks.