PC-8500 vs PC-12800 RAM, Macbook Pro 15' 2010

[dobrin]

Hello, I have a MacBook Pro (15-inch, Mid 2010) 2.8 GHz, with 2x 2GB memory modules. The machine's maximum supported memory is PC-8500. I have tested it with PC-12800 and it works just fine.

I would like to ask, should I buy 2x 4GB PC-12800 memory instead of the PC-8500 memory, to use in my current Macbook Pro (with the purpose that in the future when I buy a newer Macbook model, I can use this PC-12800 that will be supported by the newer device)...

Do you think this PC-12800's higher CAS-latency of 11 will be visibly slower on my current Macbook Pro, compared to if it was with the PC-8500 modules with CAS-latency of 9?

[Raikka]

I'd buy cheeper version, because the new MacBooks and MacBook Pros have memory solded onto the logic board and can not be replaced.