So it still looks like for multithreaded loads that the i9 performs no better or worse than the i7?
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
2018 i7 MacBook Pro throttling discussion.
- Thread starter iamMacPerson
- Start date
- Sort by reaction score
So I was getting pretty promising results on benchmarks today, with the CPU staying over 3ghz on my i7 2.6 15". Now, however, I'm trying to actually render something in Final Cut Pro, and performance keeps spiking up and down around 2ghz, going as low as 1.6 or 1.7. Temps aren't even close to 100c so I'm not sure why it's throttling.
Is this how it's supposed to be?
Is this how it's supposed to be?
You're getting <40% CPU Utilization. This is one of those (actual) cases where the software isn't optimized or incapable of using your CPU.
[doublepost=1532466438][/doublepost]
Thanks, I really appreciate the feedback
[doublepost=1532466438][/doublepost]
Thanks, I really appreciate the feedback
I have the 2.6 and with a few apps open (Slack, Safari, Chrome) and my idle temps are ~40C. This is pretty much the same as before the patch.
@Daveiggy @iamMacPerson @Sparkel @maflynn @karanlyons
Could any of you run this benchmark in After Effects post patch? I'd love to get a real-world example of the differences we're looking at between models.
Here's a video of how to do it
. Here's the file: mediafire.com/file/qgoacxne6567wxn/AE_Test_2016.zip
Could any of you run this benchmark in After Effects post patch? I'd love to get a real-world example of the differences we're looking at between models.
Here's a video of how to do it
Its not throttling. Its simply not using your CPU. I would guess that much of the workflow is GPU-based.
[doublepost=1532466984][/doublepost]
Its very much possible that it can't utilise the CPU more, simply because the rendering is done on the GPU.
This. My 12 core Mac Pro running FCPX never uses all cores for my H.264 timeline, let alone at full speed. I think we have reached a point where faster CPUs won't make a big difference if you have an H.264, maybe even H.265, timeline. Instead that will come from the GPU.
FWIW, I see the same CPU clock speeds when I'm using FPCX on my 2.6 i7 2018 MBP.
[doublepost=1532467361][/doublepost]
If I had AE or any CC apps I would be happy to. I only use FCPX here though. Maybe someone else can chime in?
It might be asking too much but there is a free trial of AE available here: https://www.adobe.com/products/aftereffects/free-trial-download.html
If no one has done it later tonight when I have some free time, I'll see about installing it and running the test.
i7 2.6Ghz 32GB RAM received today.
After installing the update i went from 800ish too 996. That's the best I got so far. Pretty disappointing in my opinion. Sure, ambient temps are pretty high atm with 28 degrees celsius, but I dont think it will go to 1100ish just with lower ambient temps.
Gonna check tomorrow again but so far I consider returning it for the base i7, which would cost 270€ less in this config (higher boost clocks for the 560 vs the 555 aren't that important to me anyways)
Btw.: Idle temps are pretty high too with 55 degrees celsius
![]()
After installing the update i went from 800ish too 996. That's the best I got so far. Pretty disappointing in my opinion. Sure, ambient temps are pretty high atm with 28 degrees celsius, but I dont think it will go to 1100ish just with lower ambient temps.
Gonna check tomorrow again but so far I consider returning it for the base i7, which would cost 270€ less in this config (higher boost clocks for the 560 vs the 555 aren't that important to me anyways)
Btw.: Idle temps are pretty high too with 55 degrees celsius
You CPU utilization is 20-40% before and after the test. You might have some indexing or something going on in combination with this benchmark. Let all those jobs finish and see what your temps look like at idle, as well as what your benchmark results are.
I just gave it a shot, and got a render time of 6min 23sec - is that what you were looking for?
Running on a 2018 2.6 i7, 16 ram.
Attachments
I am installing this now on my 2.2/16/256/555X (base 15") model.
I'll update this post soon with the results.
Edit: Took 6m27s. I noticed that my CPU usage only average 65-70%. I am guessing this app is only currently using 4 of the 6 cores.
Last edited:
I benched a 1020 on my 2.6 i7 then it just continued to tank into the 500's after five runs.
Something is ducky. I didn’t get performance that bad even pre patch. I’m fact my 2014 machine doesn’t even go that slow.
Thanks! Indeed there have been background processes that I have canceled. New score is 1020. Still, I dont see see need for the mid tier-cpu. Gonna wait a few days to see more samples but so far the uplift in pricing isn't justified really.