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Billy Shears

macrumors member
Original poster
Sep 5, 2018
68
12
I'm having some concerns about my 2018 15inch i7 2.6 Macbook Pro. I'm starting to get sub 2000 scores on Cinebench R20, whilst getting 22500-23000 score on Geekbench easily. So, which test should I trust more? Is my CPU damaged or something?
 
You should trust the performance in the applications you are actually using. Are you experiencing issues of some sort? Did your work software slow down?
 
Geekbench doesn't stress the CPU, so basically a waste of time, it just presents big numbers to brag about. CineBench R20 will push the CPU, it also reveals weakness if any in the cooling system.

As stated best to look at the application you use, benchmarks are only really useful for comparisons. CPU is most likely ok, just getting too hot running R20 and throttling back. A change could be related to other software running in the background or possibly dust in the cooling system reducing the efficiency.

Q-6
 
Geekbench doesn't stress the CPU, so basically a waste of time, it just presents big numbers to brag about. CineBench R20 will push the CPU, it also reveals weakness if any in the cooling system.

As stated best to look at the application you use, benchmarks are only really useful for comparisons. CPU is most likely ok, just getting too hot running R20 and throttling back. A change could be related to other software running in the background or possibly dust in the cooling system reducing the efficiency.

Q-6

But shouldn't it reflect at least bit of the CPU thermal issues? I'm getting results of over 23000 on Geekbench, and just now I got this score on cinebench. I'm baffled.
 

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I like both to help gauge where my computer slots in compared to others. I don't take too much stock in either one, since neither really deliver real world usage and experience. Both produce a number for people to judge the speed of the computer - that's it.
 
I like both to help gauge where my computer slots in compared to others. I don't take too much stock in either one, since neither really deliver real world usage and experience. Both produce a number for people to judge the speed of the computer - that's it.
I agree, but don’t you agree that getting 1600 cinebench is strange. Laptop seems to be performing fine, but there must be a reason why it’s getting so low scores, only on cinebench
 
Why is it strange?
Because I got 2300 last week, and everyone with the same model as me gets around 2300.
[doublepost=1562340690][/doublepost]How can it not be strange that 6-core 8th gen i7 is outperformed by 4-core 6th gen i7
 
Because I got 2300 last week, and everyone with the same model as me gets around 2300.
Oh I see, sorry for the confusion.

Did you reboot and make sure nothing was processing in the background?

How can it not be strange that 6-core 8th gen i7 is outperformed by 4-core 6th gen i7
When I owned (I have since sold it), a 2018 2.2Ghz MBP that out performed the 2.6 and i9. At the time, it was due to the fact that the higher end machines were throttling. Its quite possible that if you were running the benchmarks while the internal temps were close to 100c you were not getting the optimal performance due to the temps. Tbh, I'm not sure and I'm just speculation ¯\_(ツ)_/¯
 
But shouldn't it reflect at least bit of the CPU thermal issues? I'm getting results of over 23000 on Geekbench, and just now I got this score on cinebench. I'm baffled.

Geekbench simply doesn't run the CPU hard and long enough to illustrate any thermal issue, just measures and produces a big number. In effect it's a pointless measurement as your generally are not able to use the performance it suggests, good got bar talk little else.

You need to see what's running on the system and or it's just getting too hot. The 8th Gen hex core CPU's are very potent, in a good chassis even the base 2.2GHz will pass 3000CB on Cinebench R20. I'd reboot, look and see what's running in the background. Intel Power Gadget is a useful tool to see what the CPU is doing, power, frequency etc.

CPU is either busy with other tasks up to and including malware, running too hot resulting in throttling, or artificially being held down (power limiters) etc. In general CPU's are tremendously robust, You should also try another bench test to see if it's solely related to R20, Corona Renderer will also push the CPU hard, as will an encode with Handbrake.

CPU will never reach full potential in the MBP chassis, however it should be comparable to other Mac's of the same spec.

Q-6
 
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Oh I see, sorry for the confusion.

Did you reboot and make sure nothing was processing in the background?


When I owned (I have since sold it), a 2018 2.2Ghz MBP that out performed the 2.6 and i9. At the time, it was due to the fact that the higher end machines were throttling. Its quite possible that if you were running the benchmarks while the internal temps were close to 100c you were not getting the optimal performance due to the temps. Tbh, I'm not sure and I'm just speculation ¯\_(ツ)_/¯

I got 2110 in Cinebench. baseline 2018 2.2Ghz Pro 15".
 
That's the price of inadequate cooling, is what it is 8th Gen 2.2GHz 8750H is capable of 3K in R20. Let's hope Apple wakes up to that for the redesign. Saving 3mm versus 30% performance I don't need, nor do many others...

Q-6

I like the laptop doing text because of the large screen.

I really like the political context of my iPhone. Everybody is listening to my conversations, so let the accountant please my peas.
 
Apple should really offer the Air in the 15" format similar to LG's 15" and now 17" Gram as not all need the performance of a 6/8 core CPU .

Q-6

I don't really know anymore. Buying a Lenovo next. Had my 2018 for almost a year now, may have it until this 16 inch laptop appears, then maybe break away from Apple completely. Looking at Android and Windows 10 now. They are at least making progress with optimising features and design rather than applying small stolen cosmetics and adding "fun" features I may or may not use.

I'm hitting the wall more often than not on my Apple products now, and I am using less Apple software. Safari browser is getting less and less support from the web, and I find myself having to fire up Chrome or Firefox to get full functionality from web pages. Most of the apps I use have versions for both Mac and Win, so switching won't be my biggest problem. I seldom download new Apps from the App store, and the amount of nag screens and restrictions on MacOS is getting painful to click through. It is also getting harder to circumvent these restrictions through terminal commands and nifty configurations. In Windows 10 there are more options to turn off warning notifications/windows off through menu options.

Mail.app is also feeling pretty old and has been ridden with cumbersome bugs. Will try out Catalina beta later, and iOS 13. iPadOS 13 was a step in the right direction, but it won't make me upgrade my iPad Air 2 to an iPad Pro. Fewer people are using iMessage as well, more and more people are going green on my contact list.
 
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I don't really know anymore. Buying a Lenovo next. Had my 2018 for almost a year now, may have it until this 16 inch laptop appears, then maybe break away from Apple completely. Looking at Android and Windows 10 now. They are at least making progress with optimising features and design rather than applying small stolen cosmetics and adding "fun" features I may or may not use.

I'm hitting the wall more often than not on my Apple products now, and I am using less Apple software. Safari browser is getting less and less support from the web, and I find myself having to fire up Chrome or Firefox to get full functionality from web pages. Most of the apps I use have versions for both Mac and Win, so switching won't be my biggest problem. I seldom download new Apps from the App store, and the amount of nag screens and restrictions on MacOS is getting painful to click through. It is also getting harder to circumvent these restrictions through terminal commands and nifty configurations. In Windows 10 there are more options to turn off warning notifications/windows off through menu options.

Mail.app is also feeling pretty old and has been ridden with cumbersome bugs. Will try out Catalina beta later, and iOS 13. iPadOS 13 was a step in the right direction, but it won't make me upgrade my iPad Air 2 to an iPad Pro. Fewer people are using iMessage as well, more and more people are going green on my contact list.

I fell your pain, Apple has dumbed down and disregarded the Mac so much that it's just becoming marginalised. I'll wait and see for the 16" beyond that I wont waste my time...

Q-6
 
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