ARM Cortex-A720

ARM Cortex-A720

General information
Launched	2023
Designed by	ARM Ltd.
Cache
L1 cache	64/128 KiB (32/64 KiB I-cache with parity, 32/64 KiB D-cache) per core
L2 cache	128–512 KiB per core
L3 cache	512 KiB – 32 MiB (optional)
Architecture and classification
Microarchitecture	ARM Cortex-A720
Instruction set	ARMv9.2-A
Products, models, variants
Product code name	"Hunter"
Variant	ARM Cortex-X4
History
Predecessor	ARM Cortex-A715
Successor	ARM Cortex-A730

The ARM Cortex-A720 is a CPU core model from Arm unveiled in TCS23, it serves as a successor of the CPU core ARM Cortex-A715, Cortex-A700 CPU cores series generally focuses on high performance and efficiency, the CPU core can be paired with other cores in its family like ARM Cortex-X4 or/and ARM Cortex-A520. It can be used as either "big" or "LITTLE".

Architecture changes in comparison with ARM Cortex-A715

• 15% peak performance improvement over the Cortex-A715
• Can down to same size as Cortex-A78 with 10% performance improvement
• Down L2 cache hit latency to 9 cycles (from 10 cycles)
• Down mispredict latency to 11 cycles (from 12 cycles)
• x2 L2 bandwidth
• Area optimize configuration for no area cost vs A78
• DSU-120
  • Up to 14 cores (up from 12 cores)
  • Up to 32 MiB of shared L3 cache (increased from 16 MiB)
• Update to ARMv9.2

Architecture comparison

uArch	Cortex-A78	Cortex-A710	Cortex-A715	Cortex-A720
Peak clock speed	~3.0 GHz
Decode width	4		5
Dispatch	6/cycle	5/cycle		?
Max In-flight	160	?	192+	?
L0 (Mops entries)	1536		0
L1-I + L1-D	32/64+32/64 KiB
L2	128–512 KiB
L3	0–8 MiB	0–16 MiB		0-32 MiB
AArch	32-bit and 64-bit		64-bit
Architecture	ARMv8.2-A	ARMv9.0-A		ARMv9.2-A

See also

• ARM Cortex-X4, related high performance microarchitecture
• ARM Cortex-A520, related high efficient microarchitecture
• Comparison of ARMv8-A cores