20 Jul
2015
20 Jul
'15
5:48 p.m.
On 20 July 2015 at 12:05, Lennart Sorensen <lsorense@csclub.uwaterloo.ca> wrote:
You might have just made your machine slower by doing that. Maybe. Most modern CPUs are at least dual channel memory controller based, but can only use the dual channel mode to interleave accesses if the memory matches in size. So 2x4GB is fast, and 2x8GB is fast, but 4+8GB would be slow.
Probably not much slower, though. Perhaps just a few percent. This test is rather old but the situation is somewhat similar: <http://www.tomshardware.com/reviews/Intel-Core-i7-Nehalem,2057-13.html> -- Scott