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Hi their I have a laptop with Core i7 2630QM (Base freq 2GHz TurboBoost2 upto 2.9 GHz). I was always curious about to view the dynamic overclocking that occurs in i-series when it is subjected to heavy loads. Initially I tried Intel Turbo boost monitor. It shows single bar for current clock frequency and doesnt look cool.

Q1. My doubt is that whether the dynamic overclocking occurs for all cores together or each core is dynamically overclocked at different frequencies as needed.

So if different cores are actually overclocked at different frequency then why Intel's Turbo boost monitor shows single graph.

Now my favorite gadget All Cpu Meter is updated to show turbo boost. However I cant find it very well.

Check this image - All Cpu Meter

Q2. Does the increase in clock frequency above the base clock is the only way this gadget shows the turbo boost? If yes then again they are showing the single textual increase in frequency value as turbo boost.

Q3. Is there any better tool.

share|improve this question
TurboBoost does not overclock all cores (effectively). When one core is at full load and the other cores are idle, the CPU will boost the clock frequency. The idle cores might be technically boosted, but then again-- they're idle. As soon as they start doing work, the CPU will drop back to the rated speed. I also believe SpeedStep clocks the CPU down as a whole when all of the cores are idle or under light load-- Any core under full load will cause the entire processor to return to rated speed. – Darth Android Oct 18 '12 at 14:16
@DarthAndroid can you please confirm the Clock (2594 MHz) shown in the gadget under "CPU Usage" greater than the base frequency 2001MHz (shown on left processor information ) is the only Turbo Boost indication the gadget provides? – Mahesha999 Oct 18 '12 at 19:11
I can't confirm that that is the only indication that the gadget provides (it may display it elsewhere), but TurboBoost and SpeedStep both work by altering the CPU multiplier (you can watch this in realtime with a program called CPU-Z), and the CPU multiplier affects all cores on the CPU. – Darth Android Oct 18 '12 at 19:52

The standard windows resource monitor shows the CPU speed as a % of rated speed. So if you see it at 115% then it is doing to turbo boost thing.


You get there from the task manager


share|improve this answer
well I have to observe 100+% – Mahesha999 Feb 29 at 19:55
Note: my E5-1650v3 Xeon processor won't go over 102%. My friends laptop with a lesser processor regularly goes to 115%. Go figure. – ja72 Feb 29 at 20:09

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