Facts On AMD64 Processors

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Source: AMD website.

The Athlon64 and its bigger brother Athlon64 FX have been around for over a year. They have since become that much more attractive with the release of Socket 939. Now, the most important difference with the Opteron's Socket 940 is that no registered memory is required. Also, while Socket 754 only supports 64 Bit single channel DDR400 memory, Socket 939 Athlon64 processors run in 128 bit dual channel mode. The integrated memory interface is, in fact, one of the most important architectural keys that unlocks the Socket 939 Athlon64's performance.

Here is a quick comparison of all processors:

  Model Clock L2 Cache Socket Price
Athlon64 3000+ 2.0 GHz 512 kB 754 $ 173
Athlon64 3000+ 1.8 GHz 512 kB 939 $ 173
Athlon64 3200+ 2.0 GHz 1 MB 754 $ 227
Athlon64 3200+ 2.0 GHz 512 kB 939 $ 227
Athlon64 3400+ 2.2 GHz 512 kB 754 $ 288
Athlon64 3500+ 2.2 GHz 512 kB 939 $ 346
Athlon64 3700+ 2.4 GHz 1 MB 754 $ 507
Athlon64 3800+ 2.4 GHz 512 kB 939 $ 643
Athlon64 4000+ 2.4 GHz 1 MB 939 $ 729
Athlon64 FX-53 2.4 GHz 1 MB 939 $ 729*
Athlon64 FX-55 2.6 GHZ 1 MB 939 $ 827
*will be phased out soon

All the basic information around AMD64 and the Athlon64 processors can be found here:

AMD's Athlon 64 Has Arrived: the Athlon 64 FX and Athlon 64 (and Intel's P4 Extreme) AMD's Socket 939 Offers More with Much of the Same

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