Quote Originally Posted by stone_cold_Jimi
high OCs on air = the better Rev 5 step B1 ES chips

hot = X6800 retail (Rev 6 step B2) so far.

It was only a fix for RAID5 afaik, but it seems to have hamstrung these chips quite a bit.

More data still desired.
How many step 5's did you see run prime @ 4ghz though? Almost all of them were only single thread loaded so much less heat.