feature about graphic card and mobo

[woopypooky]

1.i SEE some graphic card had DDR3 and some DDR2 , what is the difference?

2. Some mobo have these:- ATX + 1394+S+L
i know S=integrated sound, L=lan card, but what is 1394 means? some even have 2X1394

2. is all kingston ram same timing? Say, if buy one 512mb pc3200 DDR400 half a year ago, and now buy another 512mb pc3200 DDR400 not at the same shop, will it be identical and can run dual channel?

 

[theMan]

1. ddr3 = faster. ddr3=better. ddr3= more expensive.

2. 1394 is firewire.

3. if it is the same model number, yes. if not, no.