ARM Cortex-A72

Broadcom BCM2711, asystem on a chip with four ARM Cortex-A72 CPU cores
General information
Launched	2016
Designed by	ARM Holdings
Cache
L1cache	80 KiB (48 KiB I-cache with parity, 32 KiB D-cache with ECC)per core
L2 cache	512 KiB to 4 MiB
L3 cache	None
Architecture and classification
Technology node	16 nm
Instruction set	ARMv8-A
Physical specifications
Cores	1–4 per cluster, multiple clusters[1]
Products, models, variants
Product code name	Maya
History
Predecessor	ARM Cortex-A57
Successor	ARM Cortex-A73

TheARM Cortex-A72 is acentral processing unit implementing theARMv8-A 64-bitinstruction set designed byARM Holdings'Austin design centre. The Cortex-A72 is a 3-way decodeout-of-ordersuperscalar pipeline.^[1] It is available asSIP core to licensees, and its design makes it suitable for integration with other SIP cores (e.g.GPU,display controller,DSP,image processor, etc.) into onedie constituting asystem on a chip (SoC). The Cortex-A72 was announced in 2015 to serve as the successor of theCortex-A57, and was designed to use 20% less power or offer 90% greater performance.^[2][3]

• Pipelined processor with deeplyout-of-order,speculative issue 3-waysuperscalar execution pipeline
• DSP andNEONSIMD extensions are mandatory per core
• VFPv4 Floating Point Unit onboard (per core)
• Hardware virtualization support
• Thumb-2 instruction set encoding reduces the size of 32-bit programs with little impact on performance.
• TrustZone security extensions
• Program Trace Macrocell and CoreSight Design Kit for unobtrusive tracing of instruction execution
• 32 KiB data (2-way set-associative) + 48 KiB instruction (3-way set-associative) L1 cache per core
• Integrated low-latency level-2 (16-way set-associative) cache controller, 512 KB to 4 MB configurable size per cluster
• 48-entry fully associative L1 instruction translation lookaside buffer (TLB) with native support for 4 KiB, 64 KiB, and 1 MB page sizes
• 32-entry fully associative L1 data TLB with native support for 4 KiB, 64 KiB, and 1 MB page sizes
  • 4-way set-associative of 1024-entry unified L2 TLB per core, supports hit-under-miss
• Sophisticated branch prediction algorithm that significantly increases performance and reduces energy from misprediction and speculation
• Early IC tag –3-way L1 cache at direct-mapped power*
• Regionalized TLB and μBTB tagging
• Small-offset branch-target optimizations
• Suppression of superfluous branch predictor accesses

• Broadcom BCM2711 system on a chip with four A72 cores. Used in theRaspberry Pi 4.^[4]
• Qualcomm Snapdragon 650, 652, and 653
• NXP i.MX8, Layerscape LS1026A/LS1046A, LS2044A/LS2084A, LS2048A/LS2088A, LX2160A/LX2120A/LX2080A, LS1028A
• Texas Instruments Jacinto 7 family of automotive and industrial SoC processors.
• Rockchip RK3399, RK3576
• AWS Graviton

• ARM Cortex-A57, predecessor
• ARM Cortex-A73, successor
• Comparison of ARMv8-A cores, ARMv8 family

• Official website
• ARM Cortex-A72 Technical Reference Manuals

• ARM processors

• Articles with short description
• Short description is different from Wikidata