Does DDR2 memory run in dual channel mode? Is 2x512MB faster than 1x1024MB?

Answer 1

YES of course, as long as your motherboard supports dual channel mode. Dual channel offers a bigger memory bandwidth, so, theoretically, your PC should run faster. But sometimes, it also depends on the application. There are applications that do not take full advantage of the bigger memory bandwidth, so difference between single and dual channel is not noticeable.

Answer 2

RAM runs faster and performs better in dual! That's why computer manufactures always install a matched pair and not a single stick! DDR2 will only run in dual channel mode only if the motherboard supports it .

Answer 3

Whether DDR2 runs in dual channel or not, depends on your Northbridge Chipset type/model.

Yes, 2x512MB is faster than 1x1024MB. This is because your bit width is doubled, thus doubling your bandwidth.

For single channel, the bit width is 64bit, meanwhile the dual channel, the bitwidth is doubled to 128 bit.

Answer 4

Yes, that's a fact, since DDR & DDR2 dual memory is faster
than single channel.

Answer 5

Any duel chip of the same kind - DDR, DDR2, or just plan old Dimm memory runs faster in pairs, the problem comes when you want more memory and you have to buy two bigger chips to compensate for the older or lower two.