|Launched||September 23, 2003|
|Max. CPU clock rate||1.0 GHz to 3.2 GHz|
|HyperTransport speeds||800 MT/s to 1000 MT/s|
|Architecture and classification|
|Technology node||130nm to 65nm|
|Instruction set||MMX, SSE, SSE2, SSE3, x86-64, 3DNow!|
|Successor||Athlon 64 X2|
The Athlon 64 is an ninth-generation, AMD64-architecture microprocessor produced by Advanced Micro Devices (AMD), released on September 23, 2003. It is the third processor to bear the name Athlon, and the immediate successor to the Athlon XP. The second processor (after the Opteron) to implement the AMD64 architecture and the first 64-bit processor targeted at the average consumer, it was AMD's primary consumer microprocessor, and primarily competed with Intel's Pentium 4, especially the Prescott and Cedar Mill core revisions. It is AMD's first K8, eighth-generation processor core for desktop and mobile computers. Despite being natively 64-bit, the AMD64 architecture is backward-compatible with 32-bit x86 instructions. Athlon 64s have been produced for Socket 754, Socket 939, Socket 940, and Socket AM2. The line was succeeded by the dual-core Athlon 64 X2 and Athlon X2 lines.