Does 1024mbDual channel > 1512mb Single channel ?

[Buzdugan]

Hey

I have 2x 512 memory modules on dual channel(ddr400).

512(o) x 512(o) x

x - free slot, o - old memory module

Got 1x512 module of ddr400.

now it's

512(o) 512(o) 512 x

- new module


My question is that if this is better ? I know it's a bit slower but it should be better performance right ?

Should I stay 1512mb of ram single channel or go back to 1024mb dual channel.

ps. I don`t got the dollars for another 512 module

 

[rwaritsdario]

Dual channel gives you only about 5% increase in memory performance, its invisible for real world performance. Using all your modules will definetely grant you the most performance.

 

[Mondoman]

It really depends on your processor/chipset. In general, like dario said, it's probably better under Windows to have 1.5GB RAM, but you will need to test both configurations yourself for the programs you are using.

 

[Noya]

Definitely go for the three 512mb dimms. Check start up times, loading and page file usage.