This change was intended to provide a more accurate representation of how much work the system is handling, and the utility counters do just that. A processor that’s running 50% of the time and clocked down to 50% frequency performs only half the work of a processor that’s running 100% of the time at 100% frequency. Before this change, under the time-based performance counters (used in Windows 7 Task Manager), those two processors clocked differently. Both appear to be doing the same amount of work: 100% of their capacity. With the redesigned Task Manager, the first processor is shown to be running at 50% capacity, whereas the second processor is shown to be running at 100% capacity. And Turbo Boost drives the processor above 100% of its nominal speed, and allows the processor to exceed 100% capacity.
Article ID: 3200459 - Last Review: 25 Oct 2016 - Revision: 1