So my findings seem to confirm that when you look at mobile CPU performance, you need to check for a specific laptop that you want to buy because the performance differs quite a bit from device to device due to cooling & configuration differences.
I compared online Cinebench R15 scores of the Ryzen 5 2500U CPU (4C/8T) to my own from the Acer Nitro 5 and found that:
- In a multithreaded test, my 2500U scored 681cb points which is quite a bit more than scores from the HP Envy x360 with the same CPU which scored around 575cb.
- In a singlethreaded test the difference isn't as large due to the fact that thinner laptops do not get as power and thermally constrained when only one of the cores is fully loaded and boost it appropriately, my Nitro 5 scored 143cb when most scores circle around 137cb.
IMO over 100cb points is a massive difference when talking about identical CPUs, so it really depends on the particular laptop model and its power & cooling design.
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@Morgan MLGman W T F, I have that Envy. I get 610 CB on my own!
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@Silentprototipe There were some scores ranging around 600, however that's still quite far from 681 that I got on my Nitro 5, can I know what all-core clock speeds do you have when running Cinebench? Is the High/Ultimate performance plan enabled in Windows?
Of course, you have to test it when plugged in with your charger, not on battery. -
@Morgan MLGman I did everything I could to give my laptop the most power. Hell I took off the bottom pannel for extra airflow. Still 610 CB on wall power. Kind of BS
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@Silentprototipe I've never seen a score lower than 671 on any of the Cinebench runs I tried, and I've never even enabled the maximum fan profile because it's too loud for my taste.
Let me know the all-core clock speed during a Cinebench run on your x360 if you can. -
@Morgan MLGman All core of 2.7 Ghz under CPU load. 2 Ghz under full CPU and GPU load
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@Silentprototipe Here's the difference then, under prolonged CPU load my 2500U hovers from 3.0 to 3.1 GHz (usually around 3050MHz) without having the fans tuned to maximum, if I do that it might give me another 100MHz as Precision Boost 2 works somewhat like Nvidia's GPU Boost 3.0.
Not sure if that frequency difference is due to better cooling in the Nitro 5 or the configuration that HP did with the CPU. My bet goes to the cooling difference because the chip is also configured for 15W TDP in my NItro 5.
