AMD's Six-Core Phenom II X6 1090T & 1055T Reviewedby Anand Lal Shimpi on April 27, 2010 12:26 AM EST
None of the games here can take advantage of more than 4 cores. The Phenom II X6 ends up performing no different than a Phenom II X4. Thankfully due to Turbo Core you rarely see a drop in performance compared to the Phenom II X4 965.
If you want the better gaming chip, you want Lynnfield.