2 gb or 3gb

[kiwiturkey]

Hey, I was wondering which would be faster. In my scenario, I have 2x512 gb of ddr2 5300 5-5-5-12 ram. I also have a 2x1gb of ddr2 6400 5-5-5-18 ram. If is use both at the same time, with both in their dual channel slots, will the dual channel still work, as in
Slot1: 6400 Slot2:6400
Slot3: 5300 Slot4: 5300

Is it faster just to have slots 1 and 2 with the 6400 ram, or will the performance be the same with both 5300 and 6400 ram?

 

[o1die]

You'll just have to try it; sometimes when mixing ram, the board won't post; your board will default to the slower ram speed, but you won't notice the difference. The 5300 has faster timings, but slower fsb. It's a tossup.

 

[kiwiturkey]

I put in all the rams together in the motherboard, how do I test them for their speed. I am using Passmark's Performance Test. Can you give me step by step details on how to compare and contrast one memory test from another?

 

[o1die]

No. Benchmarks don't mean that much. The difference is negligable. If you want to see a real difference, overclock your cpu. I set mine from 200 to 240 fsb and leave the ram in auto sometimes on my backup system.