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

• K8
• K10
• Bulldozer
• Piledriver
• Steamroller
• Excavator
• Zen
• Zen+
• Zen 2
• Zen 3

Intel

• NetBurst
• Core
• Penryn
• Bonnell
• Nehalem
• Westmere
• Sandy Bridge (client)
• Saltwell
• Ivy Bridge
• Silvermont
• Haswell
• Broadwell
• Airmont
• Skylake (client)
• Kaby Lake
• Goldmont
• Skylake (server)
• Coffee Lake
• Goldmont Plus
• Knights Mill
• Palm Cove
• Whiskey Lake
• Amber Lake
• Cannon Lake
• Tremont
• Cascade Lake
• Snow Ridge
• Sunny Cove
• Lakefield
• Ice Lake (client)
• Willow Cove
• Cooper Lake
• Tiger Lake
• Gracemont
• Alder Lake
• Rocket Lake
• Ice Lake (server)
• Golden Cove
• Ocean Cove
• Raptor Lake
• Sapphire Rapids
• Meteor Lake
• Emerald Rapids
• Granite Rapids
• Sierra Forest
• Diamond Rapids

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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