Heat test running Cinebench and Turboboost Switcher

[IngerMan]

I have a 2017 15" 2.9 560GPU 4GB. I have read about reduced heat on the machines using Turboboost Switcher so I downloaded it a few days ago and thought I would test it on Cinebench for performance vs heat.

Normal Mode
Open GL 91.88 fps
CPU 756 cb

Turbo Boost de-activated
Open GL 81.52
CPU 633 cb

Temperature
Normal mode hitting 100 C
Turbo boost de-activated about 20C cooler

Below is a graph of heat, I ran the test 2 x in each mode. The reason I researched this is running a simple malware scan was really maxing my temperature. Turboboost switcher took care of that.

Yes it does reduce the performance but to what extent, 10% performance decrease vs 20% temp decrease? You can turn it on or off by push of the icon. I think its a great feature.

I thought this would be interesting to see some tests on the 2018 models.

 

[Queen6]

Try Corona Renderer's benchmark, that will really illustrate any issues, as unlike CineBench R15 it's not a just a quick 30 second render, being closer to 3 minutes, even on a fast notebook...

https://corona-renderer.com/benchmark

Personally I'd simply far prefer Apple got it's act together and actually offered differing classes of computer including a powerful portable solution...

Q-6

 

[IngerMan]

Corona renderer showed about 15 C cooler disabling Turbo Boost and 5:23 minutes render compared to 4:12 minutes turbo enabled. I did not hear the fans when turbo boost was disabled but it was very audible when Turbo was active.

 

[leman]

Few comments:

1. Its not 10% performance for 20% temperature, its more like 10% for 10%. You need to take the idle temperatures (usually 40-50C) as zero.

2. The CPU+cooling system is configured in a way so that it is expected to stay at base frequency when running intense multi-core workloads like Cinebench. Any performance you see above that level is opportunistic and guaranteed. This means that disabling turbo boost shouldn't make much difference here, since your CPU is not really expected to boost that much in such situation (unless the cooling is powerful enough to allow it). Bottomline: you need to test out single-core, bursty workloads (where I expect you to see performance hit of 30-40%).

3. What you essentially do is take your expensive laptop/CPU and downgrade it a cheap, low-level i3 CPU. This just doesn't make much sense to me. If you don't care about having a fast machine, why didn't you get a cheaper, slower one, to begin with?
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Personally I'd simply far prefer Apple got it's act together and actually offered differing classes of computer including a powerful portable solution...

I don't think that would help OP, who seems to have some strange obsession with preventing fan noise. I am not aware of any portable powerful computer that would run quietly under load.

 

[IngerMan]

3. What you essentially do is take your expensive laptop/CPU and downgrade it a cheap, low-level i3 CPU. This just doesn't make much sense to me. If you don't care about having a fast machine, why didn't you get a cheaper, slower one, to begin with?


I did purchase a cheaper/slower Apple 15" Laptop, Discounted very well and received a few weeks back.

I downloaded the Turbo boost enabler just for scanning my disk for Malware. I don't really care about performance for that but feel it should not top 90C to run it. I ran those tests out of interest for the results of Temp vs Performance. I agree you take a hit on performance and does not make much sense for some one to use that in a professional work load. The test is not that accurate with the fans running at different speeds, but it showed me what I wanted to see.

 

[1096bimu]

So you’re saying because you “feel” 90 degree is too hot therefore it is too hot for the chip which is a solid chip of essentially glass/metal sandwich?
Screw the engineers, my feels are where it’s at in terms of material science and electrical engineering.

 

[mmomega]

Just let it go.

Some people drive the speed limit, some drive over it, some drive under it, some don't drive at all.

None of it matters.