I5 6200U does not boost to 2.8 GHz?

Ma
5

I know that this is actually only a tiny, insignificant deviation, but still my curiosity was piqued. So the following:

After playing around with my old laptop here, I noticed the following:

The CPU (I5 6200U) only ever boosts to a maximum of 2.69 GHz. However, it should be 2.8GHz.

Circumstances are as follows:

-GPU (Geforce 940MX) is overclocked via MSI Afterburner: + 135MHz core clock and +805 MHz memory clock (maximum stable OC, tested with Furmark). However, the GPU is not active during the Cinebench R23 test and therefore does not affect the temperatures.

-Thermal throttling can be excluded, the maximum temperature is 71 ° C on the first core and 69 ° C on the second core. Not perfect but acceptable for a notebook.

Ultimately, the question arises as to why he doesn't use his full boost. I have already set all energy settings to maximum output. The question I also ask myself is how much such a 100MHz difference can actually make in terms of performance. It is of course clear that it is not much.

LG KTM ^^ I appreciate all the answers.

Ja

You shouldn't notice the 100Mhz difference. The boost clock to 2.8GHz could possibly reach the CPU. Which tool did you use to determine your boost clock? If you have used the task manager as a readout tool, you will never see the absolute clock there, because the task manager reads out relatively slowly and always calculates the average clock between all cores.

Try HWInfo when reading out. There you can see all threads with their individual clocks on the cores. It is possible that it reaches its frequency of 2.8 GHz but only very briefly, does not hold it and then drops back to 2.6 GHz.

Even if it does not reach the full 2.8Ghz, this is still within the tolerance of the sale.

What can also be is that your mainboard does not manage to provide enough voltage and the CPU can't boost to the full 2.8.

Ja

P.S. Boostclock means that the CPU only uses 1-2 cores (depends on the CPU).

Ma

Thank you for the great answer.

I use Core Temps' included frequency reading tool to read them. It now seems to me as if the mainboard couldn't handle that on all cores. In a single-core test, it actually reaches 2.8GHz and an average of 2.76GHz every now and then for a fraction of a second. So it looks better here ^^

Edit: Indeed. Your comment confirms my assumption ^^ Learned again, thank you.

Ja

Always happy. I had to deal with the whole topic for my Ryzen 5.

Ma

I'm also just beginning to deal more specifically with such clock rates. And by the way to find in the OC ^^