How do I look at this from a BW point of view?And the 64 ROPs in Hawaii are already BW starved for FP16 writes and blends, so the extra juice from HBM could level off the utilization.
Is it simply: 64 ROPs x 32 bpp x 1050 GHz x RmW / 8 bits per byte = 537 GBps ?
That should be plenty to fill up the total BW offered? Or do you need more due to caching?