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AMD headquarters, Sunnyvale, California [1]

Advanced Micro Devices, Inc. or AMD,
an American multinational semiconductor company based in Sunnyvale, California, and behind Intel the second-largest global supplier of microprocessors based on the x86 architecture and also one of the largest suppliers of graphics processing units [2] . In 2003, AMD launched the Athlon 64 (Hammer, AMD64, K8) and pioneered the x86-64 instruction set. Until Intel introduced the Core 2 microarchitecture in 2006, AMD64 was the dominating architecture for computer chess in the 2000s. With the Zen micro-architecture and the release of the Ryzen processor in early 2017, it seems that AMD can recover lost ground. However, early Ryzen's BMI2 performance is worse [3] [4] , in particular using BMI2 PEXT in chess programs - one should conditionally compile using magic bitboards instead of PEXT bitboards, otherwise preferable for compatible Intel processors [5] .




Christophe Jolly and Walter Bannerman, Paris WMCCC 1997 [6]


Rebel vs Viswanathan Anand, Ischia, July 1998 - back of Ed Schröder and Jeroen Noomen [7] [8]


Jochen Peussner and Roland Pfister, BELCT 2001 [9]

x86 Architectures


Year Architecture
1991 x86 Am386
1993 Am486
1996 AMD K5
1997 AMD K6
1998 AMD K6-2
1999 AMD K7 Athlon
2003 x86-64 AMD K8 Athlon 64, Opteron
2007 AMD K10
2011 Bulldozer
2012 Piledriver
2014 Steamroller
2015 Excavator
2017 Zen

SIMD Extensions

General Purpose Extensions

See also

Forum Posts

External Links


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