We can't really know, since we don't have something to compare it to. Only they know what the performance could have been if the fix were not implemented in sil

We can't really know, since we don't have something to compare it to. Only they know what the performance could have been if the fix were not implemented in silicon, and they won't be releasing new versions of old chips that ONLY have this hardware fix, so we will never be able to compare the two. Only they will ever know, however if we see comparable or worse performance (or just barely better) in these new chips then we can know that there was some performance hit.