ARM Cortex-A73
| General information | |
|---|---|
| Launched | 2016 |
| Designed by | ARM Holdings |
| Max.CPUclock rate | to 2.8 GHz |
| Cache | |
| L1cache | 96–128KiB(64 KiB I-cache with parity, 32–64 KiB D-cache)per core |
| L2 cache | 1–8MiB |
| L3 cache | None |
| Architecture and classification | |
| Application | Mobile |
| Instruction set | ARMv8-A |
| Physical specifications | |
| Cores |
|
| Products, models, variants | |
| Product code name |
|
| History | |
| Predecessors | ARM Cortex-A72 ARM Cortex-A17 |
| Successor | ARM Cortex-A75 |
TheARM Cortex-A73is acentral processing unitimplementing theARMv8-A64-bitinstruction setdesigned byARM Holdings'Sophiadesign centre. The Cortex-A73 is a 2-wide decodeout-of-ordersuperscalarpipeline.[1]The Cortex-A73 serves as the successor of theCortex-A72,designed to offer 30% greater performance or 30% increased power efficiency.[2]
Design
[edit]The design of the Cortex-A73 is based on the32-bitARMv7-ACortex-A17,emphasizing power efficiency and sustained peak performance.[3]The Cortex-A73 is primarily targeted atmobile computing.[4]In reviews, the Cortex-A73 showed improvedintegerinstructions per clock (IPC),though lowerfloating pointIPC, relative to the Cortex-A72.[5]
Licensing
[edit]The Cortex-A73 is available asSIP coreto licensees, and its design makes it suitable for integration with other SIP cores (e.g.GPU,display controller,DSP,image processor,etc.) into onedieconstituting asystem on a chip(SoC).
The Cortex-A73 is also the first ARM core to be modified through ARM's semi-custom 'Built on ARM' license.[6][7]TheKryo 280was the first released semi-custom product, though the modifications made relative to the stock Cortex-A73 were not announced.[5]
Products
[edit]TheHiSiliconKirin 960,released in 2016, utilizes 4 Cortex-A73 cores (clocked at 2.36 GHz) as the 'big' cores in abig.LITTLEarrangement with 4 'little'ARM Cortex-A53cores.[8]
TheMediaTekHelio X30utilizes 2 Cortex-A73 cores (at 2.56 GHz) as the 'big' cores in deca-core big.LITTLE arrangement with 4Cortex-A53and 4Cortex-A35'little' cores.[9]
The Kryo 280, released in March 2017 byQualcommin theSnapdragon835,uses a modified Cortex-A73 core.[5][10]The SoC utilizes 8 Kryo 280 cores in a big.LITTLE arrangement as two 4-core blocks, clocked at 2.456 GHz and 1.906 GHz. The modifications made by Qualcomm relative to the stock Cortex-A73 core are unknown, and the resulting Kryo 280 core demonstrated increased integer IPC.[5]The Kryo 260 also used Cortex-A73 cores, though at lower clock speeds than the Kryo 280 and in combination withCortex-A53cores.[11]
The Cortex-A73 is also found in a wide range of mid-range chipsets such as theSamsungExynos7885, MediaTek Helio P series, and other HiSilicon Kirin models. Like the Snapdragon 636/660, most of these chipsets implement 4 A73 cores and 4 A53 cores in a big.LITTLE configuration, although some lower end models of Samsung chips implement only 2 A73 cores with 6 A53 cores.
See also
[edit]- ARM Cortex-A72,predecessor
- ARM Cortex-A75,successor
- Comparison of ARMv8-A cores,ARMv8 family
References
[edit]- ^"Cortex-A73 Processor".ARM Holdings.Retrieved2017-03-28.
- ^Cutress, Ian; Tallis, Billy (29 May 2016)."Computex 2016: ARM Press Conference Live Blog".Anandtech.Retrieved29 March2017.
- ^Frumusanu, Andrei (29 May 2016)."The ARM Cortex A73 - Artemis Revealed".Anandtech.Retrieved29 March2017.
- ^Sims, Gary (30 May 2016)."The Cortex-A73, a CPU that won't overheat – Gary explains".Android Authority.Retrieved29 March2017.
- ^abcdHummrick, Matt; Smith, Ryan (22 March 2017)."The Qualcomm Snapdragon 835 Performance Preview".Anandtech.Retrieved22 March2017.
- ^Frumusanu, Andrei (29 May 2016)."ARM Details Built on ARM Cortex Technology License".Anandtech.Retrieved29 March2017.
- ^Triggs, Robert (4 January 2017)."Qualcomm's Kryo 280 and 'Built on ARM Cortex Technology' explained".Android Authority.Retrieved29 March2017.
- ^"Huawei announces the HiSilicon Kirin 960: 4xA73 + 4xA53, G71MP8, CDMA".AnandTech.2016-10-19.
- ^Humrick, Matt (27 February 2017)."MediaTek Announces Helio X30 availability: 10 CPU cores at 10nm".Anandtech.Retrieved29 March2017.
- ^"Get small, go big: Meet the next-gen Snapdragon 835".Qualcomm. 2016-11-17.
- ^"Snapdragon 660 Processor".Qualcomm.