Chosen Solution
I ran Geek Bench to test on 2 types of RAM’s on my 13" MacBook Pro 2.9 GHz i7 (mid 2012). 1 - Crucial 16GB Kit (8GBx2) DDR3L-1600 SODIMM 32bit test: 2913 Single-Core Score: 2913Multi-Core Score: 6105 64 bit test: Single-Core Score: 3132Multi-Core Score: 6754 2 - Kingston HyperX Impact Black 8GB 1866MHz DDR3L Laptop RAM (Low Voltage - HX318LS11IB/8) 32bit test: Single-Core Score: 2715Multi-Core Score: 5814 64bit test: Single-Core Score: 2986Multi-Core Score: 6975 So I would like to know your opinion about RAM. Which is better for my MacBook Pro:
First with any test like this you need to know what your OS and the apps are running at. In this case the newer versions of OS-X are full 64bit and the applications are generally 64bit as well (with rare exception). In this case the performance difference between the manufactures is very little under 32bit but it makes little difference here as we’re running 64bit. Under 64bit test the difference is even less! So I would focus on what costs less here. The problem you’re facing is the systems memory bus is running at 1600 MHz so the faster 1866 MHz memory is not offering any benefit here.
