Question about dual channel ram.

Defcon5 · 3 Jul 2006 at 00:06

1gb sticks generally have higher latencies than 512 sticks

Minstadave · 3 Jul 2006 at 00:23

Energize said:
Oh and another question does more ram = possibly more latency because the pc has to search a larger amount of ram to find the data needed?

Nope I don't think so.

Minstadave · 3 Jul 2006 at 00:24

Defcon5 said:
1gb sticks generally have higher latencies than 512 sticks

Thats to do with the chips used though, not because there is more memory present on the module.

james.miller · 3 Jul 2006 at 16:01

lol. thats pretty good.

I think it enables info to be sent on the rise and fall of each clock cycle

well, you were right about that. ddr does nothing other than allowing the memory to send/recieve twice per cycle rather than once. Hence the name Double Data Rate.

Dual channel itself is where the memory and cpu/nb can communicate with each other at the same time rather than cpu -> mem then mem -> cpu.

That's completely wrong however lol. ddr doesnt change the way the cpu and the memory controller comminicate with the ram toerh than what i've explained above

Defcon5 · 4 Jul 2006 at 22:43

james.miller said:
That's completely wrong however lol. ddr doesnt change the way the cpu and the memory controller comminicate with the ram toerh than what i've explained above

i see, but why is it called dual channel? i assumed it gave 2 'channels'? :confused:

james.miller · 4 Jul 2006 at 22:46

yes it does. it gives you 2 channels instead of one, so the cpu can access two sticks at once. It doesnt alter how those sticks are accessed though