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What do those extra numbers mean?

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Hey guys, :) :)

I have been wondering for a while, and just not gotten around to asking , but what are the numbers in the descriptions of hardware i.e. the "5600" in AMD Athlon 64 X2 5600+ dual-core @ 2.8GHz.

Also the same question for OCZ 4096MB PC6400 DDR2 Memory (2 x 2048MB), what is the PC6400? is this the speed, or something?

If these numbers I am referring to are indeed speed, or whatever the case may be, is there a guide or online source to find out how to know what these are?

Thanks a lot,

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In the two examples that you gave they are the speed, but that doesn't mean any "extra" numbers are the speed. They could represent any parameter that may vary, such as size in bits or bytes.
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Neil Jones

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All AMD model numbers are performance ratings towards equivalent Intel processors. A 5600 AMD processor does not mean it runs at 5.6Ghz though you could be forgiven because 2.8Ghz doubled = 5.6Ghz. It's an easier way to work out the core processor speed for the higher end processors.

PC6400 is the speed of the memory, the maximum amount of data throughput. Therefore the memory is able to shift 6.4Gbs of data per second, all other things being equal.
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