- May 19, 2011
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I've bought a few Lenovo V15 laptops lately, all with the Intel Core i3-1005G1 processor: https://ark.intel.com/content/www/u...1005g1-processor-4m-cache-up-to-3-40-ghz.html
What I'm used to with modern processors is that the processor clock frequency goes way down when idle, then automatically and almost instantaneously goes up to either a higher clock, full clock or turbo frequency.
However, what I've been seeing on the Lenovo V15 is that even with a lot of sustained processor usage, it doesn't budge from about 1.2GHz. On the default settings (balanced profile, on mains) it will sometimes go to its full clock frequency but nowhere near as often/readily as with previous processor generations.
I found a setting in the BIOS (IIRC it was labelled something like 'processor performance management'), which I set from the default to something like 'full performance', and lo and behold the processor clock management went to what I expected it to be (low clock on idle, higher clocks soon after usage is increased).
As I said, I don't know whether this is a Core 10th gen thing (as in some new default behaviour and the manufacturer provides a workaround to those who look for it), or a Lenovo V15 thing, but I'd advise anyone with a 10th gen Intel chip (probably just mobile) to look for it.
While in hindsight I ought to have done some performance testing both before and after the setting change, I'd be extremely surprised if a saturated processor at a 1.2GHz clock at is going to perform anywhere as well as the same saturated processor at say a 3.4GHz clock.
What I'm used to with modern processors is that the processor clock frequency goes way down when idle, then automatically and almost instantaneously goes up to either a higher clock, full clock or turbo frequency.
However, what I've been seeing on the Lenovo V15 is that even with a lot of sustained processor usage, it doesn't budge from about 1.2GHz. On the default settings (balanced profile, on mains) it will sometimes go to its full clock frequency but nowhere near as often/readily as with previous processor generations.
I found a setting in the BIOS (IIRC it was labelled something like 'processor performance management'), which I set from the default to something like 'full performance', and lo and behold the processor clock management went to what I expected it to be (low clock on idle, higher clocks soon after usage is increased).
As I said, I don't know whether this is a Core 10th gen thing (as in some new default behaviour and the manufacturer provides a workaround to those who look for it), or a Lenovo V15 thing, but I'd advise anyone with a 10th gen Intel chip (probably just mobile) to look for it.
While in hindsight I ought to have done some performance testing both before and after the setting change, I'd be extremely surprised if a saturated processor at a 1.2GHz clock at is going to perform anywhere as well as the same saturated processor at say a 3.4GHz clock.
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