The ARM Cortex-X2 is a
CPU
A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, log ...
implementing the
ARMv9-A
AArch64, also known as ARM64, is a 64-bit version of the ARM architecture family, a widely used set of computer processor designs. It was introduced in 2011 with the ARMv8 architecture and later became part of the ARMv9 series. AArch64 allows pr ...
64-bit
instruction set
In computer science, an instruction set architecture (ISA) is an abstract model that generally defines how software controls the CPU in a computer or a family of computers. A device or program that executes instructions described by that ISA, s ...
designed by
ARM Holdings
Arm Holdings plc (formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a British semiconductor and software design company based in Cambridge, England, whose primary business is the design of central processing ...
'
Austin
Austin refers to:
Common meanings
* Austin, Texas, United States, a city
* Austin (given name), a list of people and fictional characters
* Austin (surname), a list of people and fictional characters
* Austin Motor Company, a British car manufac ...
design centre as part of ARM's Cortex-X Custom (CXC) program.
It forms part of Arm's Total Compute Solutions 2021 (TCS21) along with Arm's
Cortex-A710,
Cortex-A510,
Mali-G710 and CoreLink CI-700/NI-700.
Architecture changes in comparison with ARM Cortex-X1
The processor implements the following changes:
*
ARMv9.0
* 10 cycle pipeline down from 11, created by reducing the dispatch stage from 2 cycles to 1
* Reorder buffer (ROB) increased by 30% from 224 entries to 288
* dTLB increased by 20% from 40 entries to 48
* SVE2 SIMD support
* Bfloat16 data type support
* Support for Aarch32 removed
* DSU-110
** Up to 12 cores (up from 8 cores)
** Up to 16M L3 cache (up from 8 MB)
* CoreLink CI-700/NI-700
** Up to 32MB SLC
Performance claims:
*Comparing the Cortex-X2 to the Cortex-X1 with the same process,
clock speed, and 4MB of L3 cache (also known as ISO-process):
**16% greater integer performance / IPC
**100% greater ML performance
*30% peak performance improvement over the Cortex-X1 in smartphones
:(3.3 GHz, 1MB L2, 8MB L3)
* 40% faster than an Intel Core i5-1135G7 at 15W (3.5 GHz, 1MB L2, 16MB L3)
Architecture comparison
:;"Prime" core
Usage
*
MediaTek
MediaTek Inc. (), sometimes informally abbreviated as MTK, is a Taiwanese fabless semiconductor company that designs and manufactures a range of semiconductor products, providing chips for wireless communications, high-definition television, h ...
•
Dimensity 9000(+)
*
Qualcomm
Qualcomm Incorporated () is an American multinational corporation headquartered in San Diego, California, and Delaware General Corporation Law, incorporated in Delaware. It creates semiconductors, software and services related to wireless techn ...
•
Snapdragon 7+ Gen 2 •
Snapdragon 8/8+ Gen 1
*
Samsung
Samsung Group (; stylised as SΛMSUNG) is a South Korean Multinational corporation, multinational manufacturing Conglomerate (company), conglomerate headquartered in the Samsung Town office complex in Seoul. The group consists of numerous a ...
•
Exynos 2200
See also
*
ARM Cortex-A710
The ARM Cortex-A710 is the successor to the ARM Cortex-A78, being the First-Generation Armv9 "big" Cortex CPU. It is the companion to the ARM Cortex-A510 "LITTLE" efficiency core. It was designed by ARM Ltd.'s Austin centre. It is the fourth a ...
, related high performance microarchitecture
*
Comparison of ARMv8-A cores
This is a comparison of ARM instruction set architecture application processor cores designed by Arm Holdings (ARM Cortex-A) and 3rd parties. It does not include ARM Cortex-R, ARM Cortex-M, or legacy ARM cores.
ARMv7-A
This is a table com ...
, ARMv8 family
References
ARM processors