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x86-64 (also known as x64, x86_64, AMD64, and Intel 64) [note 1] is a 64-bit extension of the x86 instruction set architecture first announced in 1999. It introduces two new operating modes: 64-bit mode and compatibility mode, along with a new four-level paging mechanism.
Merom was the first Mac processor to support the x86-64 instruction set, ... MacBook Pro (16-inch, 2019) 2.6 12 May 2019 October 2021 Mac Mini (2018) 3.2 65
The central processing unit (CPU) consists of two x86-64 quad-core modules for a total of eight cores, [43] which are based on the Jaguar CPU architecture from AMD. [28] Each core has 32 kB L1 instruction and data caches, with one shared 2 MB L2 cache per four-core module. [44] The CPU's base clock speed is said [citation needed] to be 1.6 GHz.
Intel Core 2 is a processor family encompassing a range of Intel's mainstream 64-bit x86-64 single-, dual-, and quad-core microprocessors based on the Core microarchitecture. The single- and dual-core models are single-die, whereas the quad-core models comprise two dies, each containing two cores, packaged in a multi-chip module. [2]
This configuration may add over 5 inches to a server motherboard so it is instead more common to have 24 total DIMM slots (12 per socket) to stay within the 19 inch motherboard standard. [20] MCR memory is able to use both 64-byte ranks simultaneously with a data buffer that compiles the 64-byte data from each rank into one piece of 128-byte ...
Linux distributions refer to it either as "x86-64", its variant "x86_64", or "amd64". BSD systems use "amd64" while macOS uses "x86_64". Long mode is mostly an extension of the 32-bit instruction set, but unlike the 16–to–32-bit transition, many instructions were dropped in the 64-bit mode.
April 24, 2021, Apple released a 24-inch iMac based on the M1, replacing the 21.5-inch Intel iMac. [45] October 26, 2021, Apple announced the M1 Pro and M1 Max, and updated 14-inch and 16-inch MacBook Pro models based on them, replacing their Intel counterparts. [46] Apple discontinued all of their Intel-based laptops following the announcement ...
The term 64-bit also describes a generation of computers in which 64-bit processors are the norm. 64 bits is a word size that defines certain classes of computer architecture, buses, memory, and CPUs and, by extension, the software that runs on them. 64-bit CPUs have been used in supercomputers since the 1970s (Cray-1, 1975) and in reduced ...