In my computer, I have 3GB of RAM. 2GB are a dual channel set of 1GB sticks, the other is an 1GB stick whose mate died. I have 4 RAM slots, so I’ve got one free. I was considering purchasing some more RAM, and I was just wondering what to get. I’m considering three options (I have Windows 7 x64):
2GB stick in free slot - cheapest
2x1GB sticks, remove unmatched stick - a little more expensive
2x2GB sticks, remove unmatched stick - most expensive
Obviously the most expensive option is best, but between the other two, is there a significant difference between having the extra 1GB vs having all memory in dual channel sets?