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Cortex-A75 µarch
General Info
Arch Type	CPU
Designer	ARM Holdings
Manufacturer	TSMC
Introduction	May 29, 2017
Process	16 nm, 14 nm, 12 nm, 10 nm, 7 nm
Core Configs	1, 2, 4, 8
Pipeline
OoOE	Yes
Speculative	Yes
Reg Renaming	Yes
Stages	11-13
Decode	3-way
Instructions
ISA	ARMv8.2
Extensions	FPU, NEON
Cache
L1I Cache	8-64 KiB/core 4-way set associative
L1D Cache	8-64 KiB/core 4-way set associative
L2 Cache	64-256-512 KiB/core
L3 Cache	0-4 MiB/Cluster
Succession
Cortex-A73 Cortex-A76

Cortex-A75 (codename Prometheus) is the successor to Cortex-A73, a low-power high-performance ARM microarchitecture designed by ARM Holdings for the mobile market.

This microarchitecture is designed as a synthesizable IP core and is sold to other semiconductor companies to be implemented in their own chips. The Cortex-A75, which implemented the ARMv8.2 ISA, is the a performant core which is often combined with a number of lower power cores (e.g. Cortex-A55) in a DynamIQ big.LITTLE configuration to achieve better energy/performance.

Compiler support

Compiler	Arch-Specific	Arch-Favorable
Arm Compiler	-mcpu=cortex-a75	-mtune=cortex-a75
GCC	-mcpu=cortex-a75	-mtune=cortex-a75
LLVM	-mcpu=cortex-a75	-mtune=cortex-a75

If the Cortex-A75 is coupled with the Cortex-A55 in a big.LITTLE system,

GCC also supports the following option:

Compiler	Tune
GCC	-mtune=cortex-a75.cortex-a55

Architecture

See also: ARM and Cortex

Key changes from Cortex-A73

The ARM Cortex-A75 is a central processing unit implementing the ARMv8.2-A 64-bit instruction set designed by ARM Holdings. The Cortex-A75 is a 3-wide decode out-of-order superscalar pipeline. The Cortex-A75 serves as the successor of the Cortex-A73, designed to improve performance by 20% over the Cortex-A73 in mobile applications while maintaining the same efficiency.

Design

According to ARM, the Cortex-A75 is expected to offer 16–48% better performance than an Cortex-A73 and is targeted beyond mobile workloads. The Cortex-A75 also features an increased TDP envelope of 2 W, enabling increased performance. The Cortex-A75 and Cortex-A55 cores are the first products to support ARM's DynamIQ technology. The successor to big.LITTLE, this technology is designed to be more flexible and scalable when designing multi-core products.

Licensing

The Cortex-A75 is available as SIP 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 one die constituting a system on a chip (SoC). ARM has also collaborated with Qualcomm for a semi-custom version of the Cortex-A75, used within the Kryo 385 Gold CPU. This semi-custom core is also used in some Qualcomm's mid-range SoCs as Kryo 360 Gold.

Block Diagram

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Memory Hierarchy

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All Cortex-A75 Processors

	List of Cortex-A75-based Processors
	Main processor						Integrated Graphics
Model	Family	Launched	Process	Arch	Cores	Frequency	GPU	Frequency
9820	Exynos	January 2019	8 nm 0.008 μm 8.0e-6 mm	Cortex-A75, Cortex-A55, Exynos M4	8		Mali-G76
9825	Exynos	2019	7 nm 0.007 μm 7.0e-6 mm	Cortex-A75, Cortex-A55, M4	8	2.73 GHz 2,730 MHz 2,730,000 kHz , 2.4 GHz 2,400 MHz 2,400,000 kHz , 1.95 GHz 1,950 MHz 1,950,000 kHz	Mali-G76	754 MHz 0.754 GHz 754,000 KHz
G80	Helio	3 February 2020	12 nm 0.012 μm 1.2e-5 mm	Cortex-A75, Cortex-A55	8	1.8 GHz 1,800 MHz 1,800,000 kHz , 2 GHz 2,000 MHz 2,000,000 kHz	Mali-G52	950 MHz 0.95 GHz 950,000 KHz
P65	Helio	25 June 2019	12 nm 0.012 μm 1.2e-5 mm	Cortex-A75, Cortex-A55	8	2 GHz 2,000 MHz 2,000,000 kHz	Mali-G52	820 MHz 0.82 GHz 820,000 KHz
P90	Helio	13 December 2018	12 nm 0.012 μm 1.2e-5 mm	Cortex-A75, Cortex-A55	8	2.2 GHz 2,200 MHz 2,200,000 kHz , 2 GHz 2,000 MHz 2,000,000 kHz	PowerVR GM 9446	970 MHz 0.97 GHz 970,000 KHz
SDM670	Snapdragon 600	8 August 2018	10 nm 0.01 μm 1.0e-5 mm	Cortex-A75, Cortex-A55	8	1.7 GHz 1,700 MHz 1,700,000 kHz , 2.2 GHz 2,200 MHz 2,200,000 kHz	Adreno 615
SDM710	Snapdragon 700	23 May 2018	10 nm 0.01 μm 1.0e-5 mm	Cortex-A75, Cortex-A55	8	2.2 GHz 2,200 MHz 2,200,000 kHz , 1.7 GHz 1,700 MHz 1,700,000 kHz	Adreno 616	500 MHz 0.5 GHz 500,000 KHz
SDM712	Snapdragon 700	6 February 2019	10 nm 0.01 μm 1.0e-5 mm	Cortex-A75, Cortex-A55	8	2.3 GHz 2,300 MHz 2,300,000 kHz , 1.7 GHz 1,700 MHz 1,700,000 kHz	Adreno 616	550 MHz 0.55 GHz 550,000 KHz
SDM845	Snapdragon 800	February 2018	10 nm 0.01 μm 1.0e-5 mm	Cortex-A75, Cortex-A55	8	2.8 GHz 2,800 MHz 2,800,000 kHz , 1.7 GHz 1,700 MHz 1,700,000 kHz	Adreno 630 GPU	710 MHz 0.71 GHz 710,000 KHz
SDM850	Snapdragon 800, Snapdragon 8	5 June 2018	10 nm 0.01 μm 1.0e-5 mm	Cortex-A75, Cortex-A55	8	2.96 GHz 2,960 MHz 2,960,000 kHz , 1.77 GHz 1,770 MHz 1,770,000 kHz	Adreno 630	710 MHz 0.71 GHz 710,000 KHz
Count: 10