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Old 07-26-2006, 08:18 PM   #1 (permalink)
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Default Why are AMD processors incompatible with 533 and 667 mhz RAM?

I am in the process of building an AMD system to replace my P4 3.0C system and I was just curious as to why AMD processors do not support intermediate memory speeds such as 533 and 667.

I know that with AM2 there is now support for DDR2 800, but I don't know why their memory controllers are not upgraded like Intel's to meet new memory speeds more regularly.

What can you tell me?


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Old 07-26-2006, 08:20 PM   #2 (permalink)
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They aren't.

Socket AM2 added support for those rams.
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Old 07-26-2006, 08:23 PM   #3 (permalink)
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Well, I mean why did they wait until DDR2 800 came around to make an upgrade? Why skip over 533 and 667 while those were out and let Intel make their hardware compatible with faster RAM? Does it not make enough difference in performance to warrant the effort?
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Old 07-26-2006, 08:54 PM   #4 (permalink)
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Who knows? Guess they didn't feel like it.
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Old 07-26-2006, 09:30 PM   #5 (permalink)
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AMDs use up to DDR400. While the faster speeds can be used with no problem, they are actually only useful once you overclock the CPU.

You have to overclock DDR to match, but not the faster RAM. It is already there.
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Old 07-26-2006, 10:25 PM   #6 (permalink)
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Quote:
AMDs use up to DDR400. While the faster speeds can be used with no problem, they are actually only useful once you overclock the CPU.

You have to overclock DDR to match, but not the faster RAM. It is already there.
Ohhh. That sounds interesting. What speed is the memory you're using?
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Old 07-27-2006, 12:58 AM   #7 (permalink)
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I'm using high-end DDR400.

But, then, I don't overclock... yet.
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