I have a late 2009 i5 27 inches model with 4gb 1066mhz RAM.
I was looking at an upgrade because I sometimes run a little low especially when a VM is running.
Speed wise it would be better to get 2x4gb sticks and have a total of 12gb or there would be no difference between that and a 1x4gb (so a total of 8gb RAM and 1 slot left empty)?
The price difference is not much but I really doubt I will need 12gb of RAM any time soon.
Any brand suggestions? I was looking for Corsair.