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What is the performance loss on putting an AM3 CPU on a AM2+ Mobo?

Last response: in Motherboards
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October 11, 2009 5:35:51 PM

Title says it all really. Just how severe is the difference between using an AM2+ Socket Mobo instead of an AM3 Socket only Mobo?

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a b V Motherboard
a b à CPUs
October 11, 2009 8:44:57 PM

None for the processor.

AM3 boards will normally use DDR3 RAM, AM2+ use DDR2. So you can put faster RAM on a AM3 board - would recommend 1333 regardless of options.

That's how I understand it.

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October 12, 2009 4:51:29 PM

Ah, excellent. I was planning on using DDR2 anyway, as it is far cheaper and the performance difference is not worth the extra cost :D 
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October 12, 2009 5:18:06 PM

I am running an AM3 CPU on an AM2+ with PC6400 DDR 2 RAM.

Phenomenal performance. Go for it!
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October 12, 2009 8:48:58 PM

so wait can you use ddr 2 memory with amd3 cpu on a amd2+board?
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a b V Motherboard
a b à CPUs
October 13, 2009 12:36:32 AM

Yes...

AMD2+ = DDR2

AMD3 = DDR3

Same CPUs for both.

As far as I can see, an AM2+/AM3 is the same as an AM2+ motherboard. That is, all AM2+'s can use AM3 CPUs. The only difference is what type of RAM. And some chipsets allow different max RAM speeds.
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