Differences in RAM Speed

ahdickter

macrumors 6502
Original poster
Jun 12, 2011
293
0
Pittsburgh, Pennsylvania
I've been thinking up upgrading to 16GB of RAM in my 2011 15" MacBook Pro (I like screwing with Windows using VM Ware too much). Does it matter whether I purchase 1333mhz or 1600mhz RAM? I know the logic board will accept both, but will the faster clocked memory improve performance noticeably?
 

Intell

macrumors P6
Jan 24, 2010
18,883
372
Inside
I'm not sure, but I believe 1600mhz doesn't go much faster then 1%-2%. The current limitation is the CPU.
 

Hellhammer

Moderator emeritus
Dec 10, 2008
22,166
580
Finland
The performance difference is negligible. Unless 1600MHz is only a few bucks more expensive, go with the 1333MHz.
 

ml.sail1

macrumors regular
Aug 23, 2010
148
0
Pittsburgh
As stated above, the performance gain is minimal, however it is to my understanding that the one thing that will benefit from the increased speed is the iGPU, since is uses shared memory.