nub with DDR2

[Ace Modder]

Hi guys

Can sum1 explain to me the actually differences between :

DDR-PC2-4200
DDR-PC2-5300
DDR-PC2-6400
DDR-PC2-7200
DDR-PC2-8000
DDR-PC2-8500


do difference mobo's run mem at different max speeds, or do you need to o/c u FSB to get the increased speeds!

 

[Cob]

DDR-PC2-4200 = 533mhz
DDR-PC2-5300 = 666mhz
DDR-PC2-6400 = 800mhz
DDR-PC2-7200 = 900mhz
DDR-PC2-8000 = 1000mhz
DDR-PC2-8500 = 1066mhz

Most motherboards will let you set your memory speed as a multiple of your fsb speed (eg- x2, x2.5, x3, x3.5, or 1:1, 4:5, 2:3, 1:3, ).

So say you have a Core 2 Duo running at its stock fsb of 266mhz, you could run your memory at 533mhz (x2, 1:1), 666mhz (x2.5, 4:5), 800mhz (x3, 2:3) etc etc.

Changing the fsb will ofcourse change what figure the memory multiplier will run the memory at.

 

[Ace Modder]

interesting then, but what difference do the eifferent speed make?

IE is it noticeable?

 

[Cob]

In games it can be quite noticeable in frames per min.

And the higher speed stuff is necessary if overclocking one of the newer Intel cpus.