AMD has apparently been shipping B3 Phenom samples, because the chaps over at
AnandTech got their hands on one and ran some tests. They tested the 2.2GHz
engineering sample B3 stepping Phenom by running a quick WinRAR benchmark, first
on a B2 Phenom 9600, then on the same chip with the erratum fix disabled, and
finally on a B3 Phenom engineering sample clocked at the same speed. The results
show the B3 Phenom actually performing slightly better than the B2 chip with the
erratum disabled-1357KB/s versus 1348KB/s. So everything looks fine! By
contrast, the B2 chip with the fix enabled scored a measily 365KB/s-an extreme
case of the TLB-induced performance hit.