Laptop Memory

peterasmith

Junior Member
Jun 1, 2004
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I have been shopping around lately for a Pentium-M notebook and have noticed that most makers use DDR-266 as the memory. Some (I think Toshiba) use DDR-333, but I have yet to see DDR-400 in a laptop. I would think that saturating the FSB with mem bandwidth would significantly increase performance.

Can anyone recommend a good website that outlines performace levels and battery life at different memory speeds for a centrino platform? Personal experiences with memory upgrades using a Pentium-M would also be welcome.


Finally can anyone recommend a good DDR400 SODIM. I know that most DDR400 runs at a pretty high voltage. Are there any low voltage (2.5V) DDR400 SODIMs out there.




Thanks
 

CrucialLabs

Member
Apr 8, 2004
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Well, laptops did not support the 400MHz FSB so 400 MHz memory was a waste of time for most of the laptops out there. Until recently they all ran off either PC2100 or PC2700 but the new laptops have reached the 400MHz memory bus speeds so 400MHz PC3200 will work fine in the new laptops. If you have an older laptop it will not run the PC3200 at 400MHz because of the limitation they had with the memory bus. So you can buy PC3200 but do not be too surprised if it works at 333MHz or 266MHz instead.
 

peterasmith

Junior Member
Jun 1, 2004
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0
Do you have any info on which new chipsets support 400MHz memmory? Also is there any significant performance gain, or does the large cache on the pentium-M make the increase negligible.