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How is Windows Experience Index Calculated?

post #1 of 5
Thread Starter 
So I just upgraded my system from Crucial Ballistix DDR-800 4x1GB RAM to G.Skill DDR-1000 4x2GB RAM.

When I had the Ballistix set for 800 using 4-4-4-12 2T timing (linked and synced @3.2Ghz), I got 5.9 for RAM in Windows Experience Index.

Now when I set my G.Skill's at the same configuration, I only get 5.5. I was able to get the G.Skill's up to 5.8 by unlinking and unsyncing the memory from FSB and setting the memory to 1000.

Just curious why WEI would show different values when using the same setting on both RAM's.

Tae
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post #2 of 5
There's a lot more to RAM than just tCL, tRCD, tRP, & tRAS.

Many subtimings get changed when using different RAM, or even when using different ratios for RAM, etc.

Also, the WEI score is a big joke, since i've seen it report silliness like higher scores for slower systems, etc.

If you want to really see fine differences with RAM, run Everest or SuperPi.
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post #3 of 5
Agreed.

I know of people running a much slower system than I am and they are still able to post up stats the same as me. Besides, I know what my hardware is capable of.
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post #4 of 5
I get 5.9 all across, my memory is at 5-5-5-15 970 more stats in sig
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post #5 of 5
I think I'm at 5.2 with my setup. My memory of all things is showing as my lowest score and I'm only 10mhz lower than iggster with the same timings.
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