Some my benchmarks with x6 1090T@ 2800 MHz, turbo off, core 0 set 2800 MHz, others at 1600 MHz. OS is 32-bit win XP. So, look at this...

Cinebench R10 6646points


Cinebench R11.5 2.52points


superpi 1M 47.5s


Superpi with core afinity 2800MHz 28.937s


superpi with core affinity 1600 MHz 48.8s