The 64-bit architecture is a microprocessor or computer architecture that has a datapath width or a highest operand width of 64 bits or 8 octets. These architectures typically have a matching register file with registers width of 64 bits.

64-bit microprocessors

x86

AMD

• A10
• A8
• Athlon 64
• Athlon 64 X2
• Athlon II X2
• Athlon II X3
• Athlon II X4
• Athlon MP
• Athlon X2
• Athlon X4
• Athlon XP
• Athlon XP-M
• Geode NX
• Mobile Athlon 64
• Opteron
• Phenom II X2
• Phenom II X3
• Phenom II X4
• Phenom X3
• Phenom X4
• Sempron
• Turion 64
• Turion 64 X2
• Turion II
• Turion II Ultra
• Turion X2 Ultra

Intel

• Atom
• Atom x3
• Atom x5
• Atom x7
• Celeron
• Core i3
• Core i5
• Core i7
• Core i7 Extreme Edition
• Pentium (2009)
• Xeon
• Xeon D
• Xeon E3
• Xeon E5
• Xeon E7

ARM

MediaTek

• Helio

Phytium

• FT-1500A

MIPS

Cavium

• OCTEON
• OCTEON Plus

Other

This list is incomplete; you can help by expanding it.

Research/University

• Princeton
  • Piton

This list is incomplete; you can help by expanding it.

64-bit microcontrollers

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