http://ark.intel.com/Product.aspx?id=49653
The memory controller is on the CPU die, and is specified at 800/1066. There's no advantage to 1200/1333 RAM, and it's disadvantageous due to the likely higher CAS latency of higher speed RAM. Mixing 2 and 4 shouldn't hurt, but you might lose memory bandwidth. Don't quote me on this one, though, as I've only used AMD CPUs with the on-die memory controller and not Intel's variant yet. On Feb 24, 2011 7:54 AM, "Scott Matthews" <[email protected]> wrote: > If the CPU is: > i5-560M Processor, 2.66GHz, 3MB L3, 1066MHz FSB > > And RAM can be either of: > PC3-8500 DDR3 SDRAM 1067MHz > PC3-10600 DDR3 SDRAM 1333MHz > > Is there any benefit to having a 1333MHz stick paired to a 1066MHz FSB? > > Am I correct to think it's perfectly fine to mix sticks of different sizes? > ie, to have both 2GB and 4GB sticks in together? (I remember when they had > to be paired, so I just wanted to be sure...) > > Thanks kindly for your expertise! -Scott > > _______________________________________________ > Thinkpad mailing list > [email protected] > http://stderr.org/cgi-bin/mailman/listinfo/thinkpad _______________________________________________ Thinkpad mailing list [email protected] http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
