0
I have a question about the graph of CPU utilization in the Task Manager's performance tab. What does, for example, 25% 1.8 GHz mean? What is the scaling for the percentage? If there is a thermal throttle occurring, is the percentage over the available power or the maximum possible power? Is turbo boost taken into account?
Thank you.
The percentage is usage, not scaling. Note that the usage is always a percentage of the current freq, not the total unscaled capacity. Scaling however is measured as a Multiplier. most CPUs are 100 or 166MHz, but use a clock modifier to perform multiple tasks per cycle. a 3.8GHz chip is usually a 100Mhz chip that performs 38 tasks per cycle, and is said to be running at x38. Multicore processors can even use fractional modifiers like x24.6. You can use CoreTemp or a number of other utils to view your current clock modifier. turbo boost is just a bigger multiplier. – Frank Thomas – 2016-06-28T05:53:26.843