Request, for New 15" Macbook Pro Owners - Run CPU-Z or Equivalent

[Kris.K]

Can someone run CPU-Z or MacCPUid? Thank you!

Preferable Setup to test it on:
MacBook Pro (15-inch Late 2016)
With the i7-6920HQ

Short Why:
Long story short, if the timing on the ram is very high then it would explain why the 2016 is much slower than 2015.

Long Why:
Apple wanted to preserve battery life so they made some compromises at the expense of performance. They have upped the Mhz on the RAM even though Intel says it only officially supports upto 1866Mhz on DDR3, Apple has gone 2133mhz but increased the latency and subsequently slowed down the memory for battery life which has effectively created a bottleneck for the machine.

Reason to think this:
2015 memory latency GeekBenchmark: 12.5 Moperations/sec
2016 memory latency GeekBenchmark: 7.64 Moperations/sec

More Reading:
All the current possible reasons why the 2016 is slower than others.
https://forums.macrumors.com/thread...n-so-far-and-questions.2015665/#post-23935486

 

[xmonkey]

I ran MacCPUID on my 15" (6820HQ) and it doesn't show anything regarding RAM timings.

 

[Kris.K]

I ran MacCPUID on my 15" (6820HQ) and it doesn't show anything regarding RAM timings.

You're awesome!! Thank you, I didn't know it didn't provide it.

Could you try memtest? http://www.memtest86.com/download.htm

 

[deadworlds]

I believe this is what you are looking for.

 

[Kris.K]

I believe this is what you are looking for. View attachment 673501 View attachment 673502

YOU ARE AWESOME! Thank you deadworlds! Now I am going to track down a 2015 benchmark and see if it lives upto what we think.
[doublepost=1479692807][/doublepost]Yep seems the 2015 has......

http://www.notebookcheck.info/Breve-Analise-do-Apple-MacBook-Pro-Retina-15-Meados-2015.144775.0.html

 

[deadworlds]

YOU ARE AWESOME! Thank you deadworlds! Now I am going to track down a 2015 benchmark and see if it lives upto what we think.
[doublepost=1479692807][/doublepost]Yep seems the 2015 has......

http://www.notebookcheck.info/Breve-Analise-do-Apple-MacBook-Pro-Retina-15-Meados-2015.144775.0.html

I see that the timing on the 2015 are tighter. However the 2016 RAM runs at a faster DRAM frequency, it is my understanding that the faster speed could offset the timing issues, but I'm no expert.

 

[Kris.K]

I see that the timing on the 2015 are tighter. However the 2016 RAM runs at a faster DRAM frequency, it is my understanding that the faster speed could offset the timing issues, but I'm no expert.

Thank you man! I have given you thanks in a new thread. I think this may have been the reason why, i've put forth my theory. https://forums.macrumors.com/thread...macbook-pro-2016-is-slower-than-2015.2016640/

And yes the higher Mhz should offset the slower timing but in this case it doesn't.

The 2016 ram is slower. The next Macbook pro will be much faster when they get a better match between CPU and Ram (and power requirements).

 

[xmonkey]

I can try and run memtest to see if that matches up with what CPU-Z shows in Windows. Need to find some time to do it however, may not be today.

 

[xmonkey]

So I was able to run memtest finally. The memory latency reported when the program loaded up was 25.749ns (not sure how important that is) and the speed as 18,425 MB/s. It correctly reported my CPU as the 6820HQ along with all the right cache amounts (and speeds if anyone is curious). I then tried to pick the "View Detailed RAM (SPD) info" option under System Info and it reported that it was unable to gather this information for my device so no luck on timings or anything like that

Didn't get to run any tests besides the standard RAM benchmark. It correctly showed it as 2133MHz LPDDR3. My CPU temp was starting to climb at this point (to 91C) and the fans were kicking in so I decided to reboot after that.

 

[sebseb82]

I believe this is what you are looking for. View attachment 673501 View attachment 673502

@deadworlds ...... can you, please, exp.. how you instal/use CPU-z on mac os.. please

 

[JasonHB]

@deadworlds ...... can you, please, exp.. how you instal/use CPU-z on mac os.. please

Resurrecting an 8 year old thread!! Good luck with getting a reply

 

[viking_01]

@deadworlds ...... can you, please, exp.. how you instal/use CPU-z on mac os.. please

Suspect it was running Windows through Boot Camp.
One benefit of the Intel CPUs.

 

[sebseb82]

Suspect it was running Windows through Boot Camp.
One benefit of the Intel CPUs.

yes, i solved problem with BOOTcamp
viking, any way, tnx for help

 

[sebseb82]

Resurrecting an 8 year old thread!! Good luck with getting a reply

if you do not ask, you don't know if give you answer

btw, i solved problem