Mac Pro memory speed

adonis3k

macrumors 6502
Original poster
Apr 15, 2012
404
38
Hi all,

I have 2013 Mac Pro with 16GB or ram but want to upgrade to 64. The stuff inside runs at 1866mhz but have seen some 64GB which runs at 1600mhz, will this make a major difference in performance in day to day tasks, mainly photoshop/after effects.

Thanks
 

h9826790

macrumors G5
Apr 3, 2014
13,996
6,614
Hong Kong
Hi all,

I have 2013 Mac Pro with 16GB or ram but want to upgrade to 64. The stuff inside runs at 1866mhz but have seen some 64GB which runs at 1600mhz, will this make a major difference in performance in day to day tasks, mainly photoshop/after effects.

Thanks
I will be very surprised if you can tell any different.
 

AidenShaw

macrumors P6
Feb 8, 2003
18,602
4,607
The Peninsula
I will be very surprised if you can tell any different.
I agree. If you look at the subtests of benchmarks that stress memory bandwidth, you'll see a difference.

If you look at the subtests that measure performance of useful applications, the difference is small to noise.

The reason is that the memory subtests deliberately try to defeat the effects of memory caches to measure the raw bandwidth from DIMMs to/from CPU.

Applications, on the other hand, are usually written to make the best use of cache.
 

adonis3k

macrumors 6502
Original poster
Apr 15, 2012
404
38
So I should go for it instead of spending xx amount more for 1866 stuff?
 
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