I have figured out that /sys/devices/system/cpu/cpu0/cpufreq is showing me the value 2700000. After this I have made a look in the BIOS again:
- Processor Speed is 2700 MHz - Processor Maximum Frequency is 3200 MHz - AMD Turbo Core is activated -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1071434 Title: Turbo Core doesn't work on an AMD Phenom II X6 1045T To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1071434/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs