Task manager reports 2.53 GHz, but CPU-Z reports 1192 MHz. My windows is a fresh install of the Windows 8 Pro Upgrade. When I used the Consumer Preview, task manager would report different frequencies, but in my current installation this doesn’t happen.
I’m currently running on battery, 64-bit, Intel Core i5 540M.
Solution:
I turned Virtualisation off in the BIOS, and now Task Manager shows a difference between the marketed speed and the actual speed. On a side note, I notice that CPU-Z seems to only show the clock speed of core 0, whereas perhaps Task Manager shows the average?
Thanks for @MartheenCahyaPaulo for providing this answer in the comments. Now the next question is why does Task Manager behave like that with Virtualisation turned on?
