which performs better?

Mondoman

Splendid
Since you would need a 64-bit Windows OS to use all 4GB, that's a bit of a trick question. However, 2GB is normally plenty for Win XP (32bit). I'd stick with that, then add a pair of 2GB DIMMs down the road to go to 6GB total when I upgraded to 64-bit Vista.
 

jackluo923

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Depends on which real life applications and games and Ram setup. 4GB 3200 dual channel is better than 2GB 6400 single channel. Also, Timing for the 3200 could be a lot better than6400 thus better performance.
 
G

Guest

Guest
Also remember that not all CPU Architecture need that much bandwith. The move from DDR1 to DDR2 for AMD is a perfect example, twice the bandwith, doesnt really help.

Where the hell do you get DDRII-400?
 

jackluo923

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Yes.... they're too expensive, Nobody would buy them. DDR2 667mhz is way cheaper. 30$CND/GB 4 4 4 12 1.8v


CL3 @ PC2-3200 = CL6 @ PC2-6400.
Is there any reason why CL3 @400mhz equals to CL6 @ PC2 800mhz.

If its like that, then is CL2 ddr 400mhz is faster than CL6 800mhz DDR2 RAM?
 

Mondoman

Splendid
Is there any reason why CL3 @400mhz equals to CL6 @ PC2 800mhz.
Yes, latencies are expressed in terms of clock cycles. As the memory bus speed goes up, clock cycles get shorter.
then is CL2 ddr 400mhz is faster than CL6 800mhz DDR2 RAM?
Its CL latency is faster, but its sustained throughput is lower.