CAS 2.5 to 2 no difference?

eden

Champion
I decided to change the default my mobo gave to my OCZ PC2400 CAS 2 rated DDR from CAS2.5 to CAS2. I see absolutly no difference!
I changed the SDRAM Cycle Lengh option in BIOS to 2, is there something I'm missing, or why the heck ain't it showing improvement like most say?

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khha4113

Distinguished
Dec 31, 2007
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<b><A HREF="http://support.crucial.com/scripts/crucial.exe/solution?11=010409-0005&130=000986849882&14=&2715=&15=0&2716=0&57=search&58=&2900=Etg3eqXXDM&25=6&3=cas" target="_new"><font color=blue>What is the performance difference between CL2 and CL2.5 DDR modules?</A></b></font color=blue>

>><font color=red><i>CAS latency 2 parts process data a little quicker than CAS latency 2.5 parts in that you have to wait a half clock cycle less for the initial data. However, after the first piece of data is processed, the rest of the data is processed at equal speeds. Latency only affects the initial burst of data. Once data starts flowing, there is no effect.</font color=red></i><<

:smile: Good or Bad have no meaning at all, depends on what your point of view is.
 

eden

Champion
Thanks, so why the hell do people fuss over those speeds? Especially those saying that DDR333 CAS2.5 should be 2 to be running more performing, but if we can't notice it, why bother?

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For the first time, Hookers are hooked on Phonics!!
 

AMD_Man

Splendid
Jul 3, 2001
7,376
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You do get a 2-5% performance boost. You won't notice the difference in the real world, but you can see the difference in benchmarks.

AMD technology + Intel technology = Intel/AMD Pentathlon IV; the <b>ULTIMATE</b> PC processor