I have 7560G, that simply same laptop, but 17". (Don't forget to update BIOS, by the way.)
http://support.amd.com/us/Processor_TechDocs/41131.pdf (18.104.22.168.1)Code:echo "OFF" > /sys/kernel/debug/vgaswitcheroo/switch
So boosted P-states (up to 2.4 GHz) is here, works (check CPB here /sys/devices/system/cpu/cpuN/cpufreq/cpb), you just doesn't see it. To see it use cpufreq-aperf or cpupowerutils (run "cpupower monitor").To ensure proper OS operation, boosted P-states should be hidden from the operating system.