The third document is devoted to transition of Athlon 64 4000+ with CG stepping of the ClawHammer core to E4 stepping of the San Diego core (ADA4000BNBOX). This new stepping exists for both: Opteron and Athlon 64 processors with 1MB cache memory. The CPUID will change as follows: 00000F7Ah -> 00020F71h. Athlon 64 4200+ processor will have similar features and marking, however, its shipping schedule hasnâ€™t been finalized yet.
On the other hand, the shipping dates for 0.09micron processors with up to 4000+ performance ratings have already been revealed:
* Venice 3000+, Venice 3200+, Venice 3500+ and Venice 3800+ should start shipping on April 4, 2005;
* San Diego 4000+ should start shipping on April 15, 2005.
http://126.96.36.199/..... 4000+ &hl=en