1GB or 2*512 MB?

[Cool Joe]

which gives better performance? a single 1 GB stick or 2 512 MB sticks?

[clmlbx]

2 X 512 Mb Is Better

[Kl@w-24]

2x512 MB is better if your motherboard supports dual-channel operation.

[ilugd]

see if the two / four ram slots in your mother board has two slots of same color. If so and you use ram of same speed, the motherboard will use the ram in dual channel mode. If so, faster, otherwise 1GB stick is same.

[Bandu]

^But always refer to your mobo manual. I've heard of some boards that do not follow this color coding.

[D@rekills4]

I prefer 2*512 MB
Better and a bit fast

[amrawtanshx]

2* 512MB is better is better.

[Cool Joe]

m buyin another 512 MB to add to my current setup.

[amrawtanshx]

^^
Good.
Its better.