dual channel ram efficiency?

[singularity2006]

I don't think it's supposed to do that. I read on certain boards that if u use dual channel mode, you're supposed to be using only a certain combination of slots for it to work. And another thing, sometimes mixing RAM manufacturer at different times might make a difference. Though a very stupid idea, sometimes you might just have an unlucky draw buying memory that had a very superior manufacturing process and then later on something that was kind of poor. So maybe one chip can't keep up w/ the other. It's sort of like the strength of a chain is defined only by its weakest link. But anyhow, I haven't used dual channel since my board doesn't even support it so I can't say w/ 100% certainty of what it should and should not do. Btw, what is your current bandwidth you are getting after the benchmarks?

[Rabid pitbull]

I guess I have read somewhere that the efficency goes down, but that seemed like alot. I have been happy with the performance, and have gotten good benchmarks, It is definitly working! Sisoft sandra bandwidth is reading about 4850Mbs. I have seen big improvements in rendering test too, shaved from a few seconds to thirty in LW benchmarks. :bounce:

[singularity2006]

wh0a, PC3200 and ur getting 4850MB/s?? That's a drop for u? What were u getting when running only one RAM stick? Isn't the max for PC3200 3200MB/sec anyway? wow, can't wait till I get my new 400FSB CPU... I want my PC3200 running at full capacity!

[imashination]

Originally posted by Rabid pitbull
Now in dual mode it is at 76%.

I am using two sticks of crucial pc 3200 with the timing set 3-2-2-5. The mobo is asus p4p800.

Forget the meaningless 'efficiency' benchmark and try something usefull. Dual CPUs are only 70% effecient, but that doesn't mean they are slower than a single cpu.

[MattClary]

I'm not even sure waht "efficiency" means in this context. The question is what kind of bandwidth do you see?

[singularity2006]

i would assume efficiency is measured by measured bandwidth / theoretical bandwidth. But yeah, what numbers are u getting and how are you reading them?

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