I sat on Hasvel i3-4010U - 1.7 GHz 2 cores and began to grieve how the android studio works. And it compiles slow, and even if she inserts a piece of code with a large number of errors into the editor, then the analysis can go until the morning.
I took i5-8250U and am very pleased. I can not yet say whether the code has become faster to highlight, but the project is now compiling faster than the laptop shows that it has been warmed up and turns on the fan only after compilation already :)
In my configuration (Dell 3490), the short turbo-bus manufacturer set to 44 watts 28 seconds, the long turbo-bus is limited to 22 watts.
A short turbo-buster produces 3.38GHz and overheats the processor (if it works with all the cores) in almost 3 seconds - the remaining time the ventilator and thermal throttling try to take the temperature curve from 100C.
However, disabling this mode is still not profitable - the overall performance drops.
A long turbobust for one or two cores holds a 3.38GHz frequency. One core - with a large headroom, two cores - just 22 watts are straight across the frame. Throttling no. The cooling system seems to take just 22 watts and is capable of me, if in the XTU to raise the TDP of a long turbo-bus, even to 23 watts, a slow rise in temperature begins.
For three simultaneously active cores, throttling is enabled in terms of power and they operate at full load at 3 GHz in order to climb at 22 watts.
Four active cores hold 2.66 GHz for a long time.
If the computer works for a long time without a margin of power (ie, TDP 22W), the temperature is kept at 80C.
One fully loaded core - approximately 65C
All of the above without graphics, if you use it, it will take a significant part of the power of the processor probably.
What else is interesting - I could not benefit from undervolting.
First of all, I don’t have time to drive the prime day like in my youth, and the computer is mistaken in calculations I don’t need.
Secondly, even such an aggressive underworld as -120mV without changing the TDP gives an increase in the frequency of a long turbo bus on 4 cores from 2.66 to 2.9 only.
And the risk of erroneous calculations is huge.
In fact, with such an undervolt, even though the Windows is working, Prime finds an error in the calculations in 15 minutes.
The second funny moment, which somehow doesn’t immediately fit in my head - undervolting does not make the computer cooler, it only allows you to work at a higher frequency.
Post has been editedriseman - 16.06.18, 12:30