Today I found one interesting thread on this forum

http://www.xtremesystems.org/forums/...38#post1881638

What is interesting that Venturi OCed those 2220SE Opties up to 3200MHz on AIR without Vcore increase! This is amazing result from 90nm K8, so I think that he might have F3 stepping.
I noticed that FX-74 CPUs used in reviews was from 35th week of this year. This means that Opterons produced after this week also might be based on F3 revision, because both are identical! Things are less optimistic for AM2 Athlons due to different core (2x512KB L2 instead of 2x1MB). Might be that later on AMD wil transfer whole 90nm production to F3 deriveration.

Anyone with Opterons or QuadFXs to check my suspicions??