ARM Cortex-X2
General information
Launched	2021
Designed by	ARM Ltd.
Performance
Max. CPU clock rate	2.85 GHz^[1] to 3.00 GHz^[1]
Cache
L1 cache	128 KiB (64 KiB I-cache with parity, 64 KiB D-cache) per core
L2 cache	512–1024 KiB per core
L3 cache	512 KiB – 8 MiB (optional)
Architecture and classification
Microarchitecture	ARM Cortex-X2
Instruction set	ARMv9.0-A
Products, models, variants
Product code name(s)	Matterhorn ELP
Variant(s)	ARM Cortex-A710
History
Predecessor(s)	ARM Cortex-X1
Successor(s)	ARM Cortex-X3

The ARM Cortex-X2 is a central processing unit implementing the ARMv9-A 64-bit instruction set designed by ARM Holdings' Austin design centre as part of ARM's Cortex-X Custom (CXC) program.^[2] 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.^[3]

Architecture changes in comparison with ARM Cortex-X1

The processor implements the following changes:^[4]^[5]^[6]

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
ARMv9.0

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)

Usage

References

^ ^a ^b Dr. Ian Cutress (December 14, 2021). "The Snapdragon 8 Gen 1 Performance Preview: Sizing Up Cortex-X2". anandtech.com. AnandTech. Retrieved March 3, 2022.
^ Ltd, Arm. "Cortex-X Custom CPU program". Arm | The Architecture for the Digital World. Retrieved 2021-12-02.
^ "Arm Total Compute solutions powering decade of compute - Architectures and Processors blog - Arm Community blogs - Arm Community". community.arm.com. 2021-05-25. Retrieved 2023-09-16.
^ "Arm Launches Its New Flagship Performance Armv9 Core: Cortex-X2". WikiChip Fuse. 2021-05-25. Retrieved 2021-12-03.
^ Frumusanu, Andrei. "Arm Announces Mobile Armv9 CPU Microarchitectures: Cortex-X2, Cortex-A710 & Cortex-A510". www.anandtech.com. Retrieved 2021-12-03.
^ "Documentation – Arm Developer". developer.arm.com. Archived from the original on 2021-12-03. Retrieved 2021-12-03.
^ "Summit Dimensity9000| Latest 5G Snapdragon Processor | Qualcomm". i.mediatek.com. 17 November 2021. Retrieved 2021-12-02.
^ "Snapdragon 7+ Gen 2 Mobile Platform". Qualcomm. Retrieved 17 March 2023.
^ "Qualcomm Snapdragon 8 Gen 1 Mobile Platform | Latest 5G Snapdragon Processor | Qualcomm". www.qualcomm.com. 17 November 2021. Retrieved 2021-12-02.
^ "Exynos 2200 | Processor".

Application ARM-based chips

Application
processors
(32-bit)

ARMv7-A

Cortex-A5	Actions ATM702x Amlogic M805/S805, T82x Atmel SAMA5D3 InfoTM iMAPx820, iMAPx15 Qualcomm Snapdragon S4 Play, 200 RDA RDA8810PL Telechips TCC892x
Cortex-A7	Allwinner A2x, A3x, A83T, H3, H8 NXP i.MX7, QorIQ LS10xx, NXP i.MX6UL Broadcom VideoCore BCM2836, BCM23550 Leadcore LC1813, LC1860/C, LC1913, LC1960 Marvell Armada PXA1920, 1500 mini plus MediaTek MT65xx Qualcomm Snapdragon 200, 400
Cortex-A8	Allwinner A1x Apple A4 Freescale i.MX5 Rockchip RK291x Samsung Exynos 3110(S5PC110), S5PV210 Texas Instruments OMAP 3 Texas Instruments Sitara AM3xxx Texas Instruments DM38x ZiiLABS ZMS-08
Cortex-A9	Actions ATM702x, ATM703x Altera Cyclone V, Arria V/10 Amlogic AML8726, MX, M6x, M801, M802/S802, S812, T86x Apple A5, A5X Broadcom VideoCore BCM21xxx, BCM28xxx Freescale i.MX6 HiSilicon K3V2, 910's InfoTM iMAPx912 Leadcore LC1810, LC1811 Marvell Armada 1500 mini MediaTek MT65xx Nvidia Tegra, 2, 3, 4i Nufront NuSmart 2816M, NS115, NS115M Renesas EMMA EV2, R-Car H1, RZ/A Rockchip RK292x, RK30xx, RK31xx Samsung Exynos 4 421x, 441x ST-Ericsson NovaThor Telechips TCC8803 Texas Instruments OMAP 4 Texas Instruments Sitara AM4xxx VIA WonderMedia WM88x0, 89x0 Xilinx Zynq-7000 ZiiLABS ZMS-20, ZMS-40
Cortex-A15	Allwinner A80 HiSilicon K3V3 MediaTek MT8135/V Nvidia Tegra 4, K1 Renesas R-Car H2 Samsung Exynos 5 52xx, 54xx Texas Instruments OMAP 5, DRA7xx, AM57xx Texas Instruments Sitara AM5xxx
Cortex-A17	MediaTek MT6595, MT5595 MStar 6A928 Rockchip RK3288
Others	Cortex-A12
ARMv7-A compatible	Apple A6, A6X, S1, S1P, S2, S3 Broadcom Brahma-B15 Marvell P4J Qualcomm Snapdragon S1, S2, S3, S4 Plus, S4 Pro, 600, 800 (Scorpion, Krait)

ARMv8-A

Others	Cortex-A32

Application
processors
(64-bit)

ARMv8-A

Cortex-A35	NXP i.MX8X MediaTek MT6799, MT8516 Rockchip RK3308
Cortex-A53	Actions GT7, S900, V700 Allwinner A64, H5, H64, R18 Altera Stratix 10 Amlogic S9 Family, T96x Broadcom BCM2837 EZchip TILE-Mx100 HiSilicon Kirin 620, 650, 655, 658, 659, 930, 935 Marvell Armada PXA1928, Mobile PXA1908/PXA1936 MediaTek MT673x, MT675x, MT6761V, MT6762/V, MT6763T, MT6765/G/H, MT6795, MT8161, MT8163, MT8165, MT8732, MT8735, MT8752 NXP ARM S32, QorIQ LS1088, LS1043, i.MX8M Qualcomm Snapdragon 215, 410, 412, 415, 425, 427, 430, 435, 429, 439, 450, 610, 615, 616, 617, 625, 626, 630 Renesas RZ/V2M Rockchip RK3328, RK3368 Samsung Exynos 7570, 7578, 7580, 7870, 7880 Texas Instruments Sitara AM6xxx UNISOC SC9820E, SC9832E, SC9860/GV Xilinx ZynqMP
Cortex-A57	AMD Opteron A1100-series NXP QorIQ LS20xx Nvidia Tegra X1 and Tegra X2 Qualcomm Snapdragon 808 and 810 Samsung Exynos 7 5433, 7420 HiSilicon Kirin Hi1610 and Hi1612
Cortex-A72	AWS Graviton Broadcom BCM2711 HiSilicon Kirin 950, 955, Kunpeng 916 MediaTek MT6797/D/T/X, MT8173, MT8176, MT8693 MStar 6A938 Qualcomm Snapdragon 650, 652, 653 Rockchip RK3399 NXP QorIQ LS2088, QorIQ LS1046A, QorIQ LX2160A, QorIQ LS1028A, i.MX8
Cortex-A73	Qualcomm Snapdragon 460, 636, 660, 632, 662, 665, 680, 685, 835 Samsung Exynos 7872, 7884, 7885, 7904, 9609, 9610, 9611 HiSilicon Kirin 710, 960, 970 MediaTek MT6771/V, MT6799, MT8183 Amlogic S922X
Others	Cortex-A34
ARMv8-A compatible	Ampere eMAG Apple A7, A8, A8X, A9, A9X, A10, A10X Applied Micro X-Gene Cavium ThunderX Nvidia Tegra K1 (Denver), Tegra X2 (Denver2) Qualcomm Kryo, Falkor Samsung Exynos M1 (Mongoose), M2 (Mongoose)

ARMv8.1-A

ARMv8.1-A compatible	Cavium ThunderX2

ARMv8.2-A

Cortex-A55	Samsung Exynos 850 UNISOC SC9863/A, T603
Cortex-A75	Qualcomm Snapdragon 670, 710, 712, 845, 850 Samsung Exynos 9820, 9825 MediaTek MT6769H/T/V/Z, MT6768, MT6779V UNISOC T310, T606, T610, T616, T618, T619, T700, T710, T740
Cortex-A76	Google Tensor HiSilicon Kirin 810, 820, 980, 985, 990 Qualcomm Snapdragon 480(+), 675, 678, 720G, 730(G), 732G, 765(G), 768G, 855(+) and 860, 7c, 7c Gen 2, 8c, 8cx and 8cx Gen 2 Microsoft SQ1 and SQ2 MediaTek MT6781, MT6785V, MT6789, MT6833V/P, MT6853V/T, MT6873, MT6875, Dimensity 6020, 6080, 6100+, MT8192 Samsung Exynos 990 UNISOC T760, T770, T820
Cortex-A77	MediaTek Dimensity 1000(+) Qualcomm Snapdragon 690, 750G, 865(+) and 870 HiSilicon Kirin 9000 Samsung Exynos 880, 980
Cortex-A78	Google Tensor G2 MediaTek MT6877, MT6878, MT6879, MT6891, MT6893, Dimensity 7020, 7030, 7050, 8000, 8020, 8050, 8100, 8200, Kompanio 900T, 1200, 1380, 1300T Qualcomm Snapdragon 4 Gen 1, 4 Gen 2, 695, 6 Gen 1, 778G(+), 780G, 782G, 888(+) Samsung Exynos 1080, 1280, 1330, 1380, 2100
Cortex-X1	Google Tensor, Tensor G2 Qualcomm Snapdragon 888(+) Samsung Exynos 2100
Neoverse N1	Ampere Altra, Altra Max AWS Graviton2
Others	Cortex-A65, Cortex-A65AE, Cortex-A76AE, Cortex-A78C, Cortex-X1C, Neoverse E1
ARMv8.2-A compatible	Apple A11 Fujitsu A64FX HiSilicon TaiShan v110 Nvidia Tegra Xavier (Carmel) Samsung Exynos M3 (Meerkat), M4 (Cheetah), M5 (Lion)

ARMv8.3-A

ARMv8.3-A compatible	Apple A12, A12X/A12Z, S4, S5 Marvell ThunderX3

ARMv8.4-A

Neoverse V1	AWS Graviton3
ARMv8.4-A compatible	Apple A13, S6, S7, S8

ARMv8.5-A

ARMv8.5-A compatible	Apple A14, M1

ARMv8.6-A

ARMv8.6-A compatible	Apple A15, A16, M2, M3

ARMv9.0-A

Cortex-A510	MediaTek Dimensity 7200 (Ultra), 8300 (Ultra), 9000/9000+, 9200 Qualcomm Snapdragon 7 Gen 1, 7s/7+ Gen 2, 7 Gen 3, 8(+) Gen 1, 8 Gen 2 Samsung Exynos 2200
Cortex-A710	MediaTek Dimensity 9000/9000+ Qualcomm Snapdragon 7 Gen 1, 7s/7+ Gen 2, 8(+) Gen 1, 8 Gen 2 Samsung Exynos 2200
Cortex-A715	MediaTek Dimensity 7200 (Ultra), 8300 (Ultra), 9200 Qualcomm Snapdragon 7 Gen 3, 8 Gen 2
Cortex-X2	MediaTek Dimensity 9000/9000+ Qualcomm Snapdragon 7s/7+ Gen 2, 8(+) Gen 1 Samsung Exynos 2200
Cortex-X3	Google Tensor G3 MediaTek Dimensity 9200/9200+ Qualcomm Snapdragon 8 Gen 2
Neoverse N2	Microsoft Azure Cobalt 100
Neoverse V2	AWS Graviton4 Nvidia Grace

ARMv9.2-A

Cortex-A520	Qualcomm Snapdragon 8 Gen 3 Samsung Exynos 2400
Cortex-A720	MediaTek Dimensity 9300 Qualcomm Snapdragon 8 Gen 3 Samsung Exynos 2400
Cortex-X4	MediaTek Dimensity 9300 Qualcomm Snapdragon 8 Gen 3 Samsung Exynos 2400
Neoverse N3	-
Neoverse V3	-

Architecture changes in comparison with ARM Cortex-X1

Usage

See also

References