Originally posted by: jiffylube1024
Originally posted by: mordantmonkey
Originally posted by: brikis98
what about 4 sticks (4x512mb) versus 2 sticks (2x1gb)?
two sticks are better than four. but only marginally so... at least on socket 939.
When using high quality RAM, the difference is often 10-20% (synthetic RAM benchmarks) in favour of 2 sticks over four. This is in part because it's generally harder to overclock 4 sticks as high as 2, but the main performance killer for 4 sticks is that on every S939 board, you need to run 4 sticks at 2T command rate, whereas any good brand DDR will run at 1T. In terms of actual system performance it would probably only equate to 1-2% though.
So to answer your question, 2 sticks are the best configuration. They give you dual channel. There is no "quad channel" on mainstream boards so you get no advantage to having 4 sticks and indeed they run at slower timings.