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3GB@544 vs. 2GB@680

post #1 of 3
Thread Starter 
I'm planning to run my CPU at 272 FSB. I was wondering if using a 4:5 "divider" on the DDR2 would give me enough of a performance boost to justify losing that extra gig of ram, provided that it would run at looser timings (3-3-3-6 vs 3-4-4-8).

I'm planning to turn off page file and run some pretty ram-heavy applications.

On a side note, if I DO go for the 3 gig route: would it be good to run it in dual-channel at 1.5 gigs a channel, provided that I'm grabbing up two sticks of 1GB from the same manufacturer and rated at the same voltage (but higher speed) as the 512MB sticks already in my system? I know it'll still only run at the same speed as the slower 512MB sticks, but I just wanted to know if it'd work.
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post #2 of 3
Not knowing which applications you're going to run, it's difficult to say which way to go. As you know, there's not too much out there that will benefit from 3 GB, but if you're going to run some of the few applications that actually can make good use of it, I would guess that the quantity would likely override the higher frequency. For everything else (even memory hungry games like BF2), I would guess that the higher frequency would trump the higher quanity.

The way four DIMM dual channel works is that you end up with two banks that run in dual channel. In your case, it sounds like it would be 2x512 MB and 2x1 GB. As long as each bank has matched pairs, you're good to go. As you mentioned, it will only run at the speed/timings of the lower performing pair.
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post #3 of 3
Thread Starter 
I'm likely going to be running Premier, Photoshop, Illustrator, and probably Poser. Sometimes running all four concurrently and repeatedly switching between them.

Although you probably bring up a good point. Most of the time, I probably won't benefit from the extra gig of ram.

Thanks for the help, especially with the dual channel Q
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