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

Alpha

DEC

• Alpha

ARM

MediaTek

• Helio

Phytium

• FT-1500A

MIPS

Cavium

• OCTEON
• OCTEON Plus

POWER

IBM

• POWER8
• POWER9

x86

AMD

Am386 - AMD, Am486 - AMD, Am5x86 - AMD, K5 - AMD, K6 - AMD, K6-2 - AMD, K6-III - AMD, Athlon - AMD, K6-III+ - AMD, K6-2+ - AMD, Duron - AMD, Athlon 4 - AMD, Athlon MP - AMD, Athlon XP - AMD, Athlon XP-M - AMD, Opteron - AMD, Athlon 64 - AMD, Mobile Athlon 64 - AMD, Sempron - AMD, Turion 64 - AMD, Athlon 64 X2 - AMD, Turion 64 X2 - AMD, Turion X2 Ultra - AMD, Turion II Ultra - AMD, Turion II - AMD, A8 - AMD, A10 - AMD

Intel

80386 - Intel, 80486 - Intel, Mobile Pentium II - Intel, Atom - Intel, Core i7 Extreme Edition (i7EE) - Intel, Core i7 - Intel, Pentium - Intel, Core i5 - Intel, Core i3 - Intel, Xeon E7 - Intel, Xeon E5 - Intel, Xeon Phi - Intel, Core M - Intel, Xeon Silver - Intel, Xeon Gold - Intel, Xeon Platinum - Intel, Xeon Bronze - Intel, Xeon W - Intel, Pentium Gold - Intel, Pentium Silver - Intel, Xeon E - Intel

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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