How Does Memory Speed impact Performance?

[Cali3350]

Hey guys, im gonna skip a lot of the unneeded stuff and just get to it. Im curious what the performance penalty for lowering your memory divider is. Default for my board is 1:1.25, however i can achieve a moderately larger over clock if i switch that to 1:1. I obviously lose a lot of bandwidth though. Im curious how much this effects the system.

I do apologize for asking this question in such a format, but im in an extreme hurry atm and cant flesh it out more.

I apologize if this is a topic that has been covered. Please just delete/ignore in that case.

 

[visionviper]

It's better to run memory at 1:1 and work on overclocking the FSB.

 

[Dangman]

You won't see a performance decrease or increase going from 1:1.25 to 1:1. It's just that Intel C2D based systems simply do not benefit from anything higher than a 1:1 ratio. So that higher clock should make up for any bandwidth "loss".

 

[vanilla_guerilla]

memory speed and timings doesnt effect c2d and c2q systems the way it did with amd64 and x2 and some intel p4 systems.

 

[harpoon]

You won't see a performance decrease or increase going from 1:1.25 to 1:1. It's just that Intel C2D based systems simply do not benefit from anything higher than a 1:1 ratio. So that higher clock should make up for any bandwidth "loss".

Not entirely true, you lose a very slight amount of performance, anything over 1:1 will always perform slightly better, but the difference is usually only a couple of percent in real world apps.