macbook promemoryupgrade
I want to upgrade my RAM of Macbook Pro Early 2011 15 inch. On apple website it says to use 1333 Mhz, unfortunately I cant find it in my local market , they are offereing 1666 Mhz of 8GB and saying that it is backward compatible.
Can I use 1666Mhz in my Mac?
Thanks
It's not possible to use RAM running at 1600MHz in your Macbook Pro 8.2, because it's not supported by the processor.
Your Macbook Pro has the Intel® Core™ i7-2635QM Processor which only allows DDR3-RAM running at 1066/1333MHz according to Intel. (see link for official specs)
While the 2635QM processor does not support 1600MHz memory, it does support 16GB RAM:
I upgraded the memory in my Early 2011 MacBook Pro from 4 GB (2x2) to 8 Gb (2x4) using the Crucial site, and haven't had any problems at all.
For the record, I also did the same with a brand new iMac, swapping out both memory modules with 2x4 GB from Crucial.
It worked out to be about 1/3 of the price that Apple charges for the same memory.
Best Answer
Yes you can use.
They need to be SO-DIMM DDR3, if your CPU doesn't support 1666 MHz they will be clocked down to 1333 MHz.
About your model (Macbook Pro Early 2011 15 inch) looks like the 2.0 GHz CPU version supports only 1333 MHz, versions with 2.2 GHz or 2.3 GHz CPU support 1666 MHz