X64

x86-64 is the general name of a series of 64-bit processors and their associated instruction set architecture. These processors are compatible with legacy x86 software.

AMD and Intel are the major manufacturers, and VIA also supported it with VIA Nano processors. They call their own 64-bit processors AMD64, Intel64 and VIA x86-64 processors, respectively. Game consoles such as Microsoft Xbox One^[1] and Sony PlayStation 4^[2] use their own semi-customized AMD64-based APU as main processors.

x64 is another name used to refer to 64-bit extended systems^[3] based on this kind of processors. People often use x64 to refer to its associated instruction set architecture and processor.

Desktop Processors

AMD64

• AMD Athlon 64

• AMD Athlon X2

• AMD Athlon II

• AMD Sempron

• AMD Sempron X2

• AMD Phenom

• AMD Phenom II

• AMD FX

• AMD APU A4/A6/A8/A9/A10/A12

• AMD APU Athlon

• AMD APU Sempron

• AMD Ryzen

Intel 64 (EM64T)

• Intel Pentium 4

• Intel Pentium D

• Intel Celeron D

• Intel Pentium Dual Core

• Intel Celeron

• Intel Core 2

• Intel Core i3/i5/i7/i9

• Intel Atom

VIA x86-64

VIA Nano

Desktop Operating System

Windows XP Professional x64

Windows Vista/7/8/8.1/10 x64

Windows 11 (Only x64)

Mac OS X 10.4.7 and later

Solaris 10 and later

Linux 2.4.x and later

References

1. Marcus Yam (20 November 2013). "Xbox One Review: Unifying Your Living Room Experience". Tom's Hardware Guide™. Retrieved 2 January 2015.
2. "Specifications". Sony Computer Entertainment Asia. Archived from the original on 8 February 2015. Retrieved 2 January 2015.
3. "The latter two processor families are called 64-bit extended systems and in this book are referred to as x64." on page 37 of Windows® Internals 6th Part 1