Exynos. The Samsung Exynos (stylized as SΛMSUNG Exynos), formerly Hummingbird (), is a series of Arm-based system-on-chips developed by Samsung Electronics' System LSI division and manufactured by Samsung Foundry. It is a continuation of Samsung's earlier S3C, S5L and S5P line of SoCs.

The first debut of Samsung's indigenously developed SoC is Samsung Hummingbird (S5PC110/111), later renamed as Exynos 3 Single 3110. Samsung announce it on July 27, 2009. In 2011, Samsung announced Exynos 4 Dual 4210 that was later equipped on Samsung Galaxy S II. Since then, Samsung has used Exynos as a representative brand name of their SoC, based on Arm Cortex cores. In 2017, Samsung launched their proprietary Arm ISA-based customized core designs, codenamed "Exynos M". Exynos M series core made a debut with Exynos M1 nicknamed "Mongoose", which was used for Exynos 8 Octa 8890. The Exynos M-series have been implemented throughout the flagship lineup of Samsung Exynos 9 series, until Exynos 990. From 2021 onwards, Exynos M6 and M7 microarchitecture developments have been cancelled and instead Samsung adopts Arm Cortex-X core series as the primary core.

In 2022, Samsung started adoption of AMD RDNA GPU microarchitecture into their SoC, beginning on Exynos 2200 with Xclipse 920, which used customized "mobile RDNA" based on RDNA 2. In 2024, Samsung expanded AMD RDNA 3-based GPU into their midrange chips, since Exynos 1480 (Xclipse 530).

History

2010–2016: Pre-Mongoose Era 
In 2010, Samsung launched the Hummingbird S5PC110 (now Exynos 3 Single) in its Samsung Galaxy S smartphone, which featured a licensed Arm Cortex-A8 CPU. This Arm Cortex-A8 was code-named Hummingbird. It was developed in partnership with Intrinsity using their FastCore and Fast14 technology.

In early 2011, Samsung first launched the Exynos 4210 SoC in its Samsung Galaxy S II mobile smartphone. The driver code for the Exynos 4210 was made available in the Linux kernel and support was added in version 3.2 in November 2011.

On 29 September 2011, Samsung introduced Exynos 4212 as a successor to the 4210; it features a higher clock frequency and "50 percent higher 3D graphics performance over the previous processor generation". Built with a 32 nm high-κ metal gate (HKMG) low-power process; it promises a "30 percent lower power-level over the previous process generation".

On 30 November 2011, Samsung released information about their upcoming SoC with a dual-core ARM Cortex-A15 CPU, which was initially named "Exynos 5250" and was later renamed to Exynos 5 Dual. This SoC has a memory interface providing 12.8 GB/s of memory bandwidth, support for USB 3.0 and SATA 3, can decode full 1080p video at 60 fps along with simultaneously displaying WQXGA-resolution (2560 × 1600) on a mobile display as well as 1080p over HDMI. This SoC was used in some Chromebooks from 2013. Samsung Exynos 5 Dual has been used in a 2015 prototype supercomputer, while the end-product will use a chip meant for servers from another vendor.

On 26 April 2012, Samsung released the Exynos 4 Quad, which powers the Samsung Galaxy S III and Samsung Galaxy Note II. The Exynos 4 Quad SoC uses 20% less power than the SoC in Samsung Galaxy S II. Samsung also changed the name of several SoCs, Exynos 3110 to Exynos 3 Single, Exynos 4210 and 4212 to Exynos 4 Dual 45 nm, and Exynos 4 Dual 32 nm and Exynos 5250 to Exynos 5 Dual.

On 2010 Samsung founded a design center in Austin called Samsung's Austin R&D Center (SARC). Samsung has hired many ex-AMD, ex-Intel, ex-ARM and various other industry veterans. The SARC develop high-performance, low-power, complex CPU and System IP (Coherent Interconnect and memory controller) architectures and designs. In 2012, Samsung began development of GPU IP called "S-GPU".

2016–2020: Mongoose Era 
After a three-year design cycle, SARC's first custom CPU core called the M1 was released in the Exynos 8890 in 2016. In 2017 the San Jose Advanced Computing Lab (ACL) was opened to continue custom GPU IP development. In the same year, Samsung announced Exynos M2, a minor revision of Exynos M1.

In Hot Chips 2018, Samsung announced a new custom core named Exynos M3, codenamed Meerkat. M3 has widened decoder width from 4-wide to 6-wide, and introduced L3 cache structure. Also, it achieved over 50% IPC increase versus Exynos M1 and M2. SPEC2006 benchmark result showed that it has performance advantage comparing with counterparts of Snapdragon 845 (Cortex-A75) at their respective peak clock speed, and by lowering the clock speed to 1.79 GHz it matched the power efficiency versus Cortex-A75 of Snapdragon 845. However, Samsung Galaxy S9 with Exynos 9810 was criticized in early period of their release due to the poor CPU core scheduler settings.

In 2019, Samsung revealed Exynos 9820 with fourth-generation custom core named Exynos M4 (Cheetah). It has been manufactured on Samsung 8nm LPP process. Unlike the past flagship Exynos series with 4+4 dual-cluster settings, Exynos 9820 implemented 2+2+4 core cluster configurations. Benchmark result presented that Exynos 9820 had performance parity but worse efficiency over Snapdragon 855. Later, Samsung announced Exynos 9825, a revised SoC manufactured on their first 7nm manufacturing process named 7LPE. Exynos 9825 came equipped with Samsung Galaxy Note10 series and Samsung Galaxy F62/M62.

In 2020, Samsung released last Mongoose-based SoC, named Exynos 990. Exynos 990 came with their fifth-generation custom core (Exynos M5) codenamed Lion. However, M5 showed less performance and worst power efficiency against Cortex-A77 of Snapdragon 865.

On 1 October 2019, rumors emerged that Samsung had laid off their custom CPU core teams at SARC. On 1 November 2019, Samsung filed a WARN letter with the Texas Workforce Commission, notifying of upcoming layoffs of their SARC CPU team and termination of their custom CPU core development. SARC and ACL will still continue development of custom SoC, AI, and GPU.

2021–present: Cortex and RDNA Era 
On 3 June 2019, AMD and Samsung announced a multi-year strategic partnership in mobile graphics IP based on AMD Radeon GPU IP. NotebookCheck reported that Samsung are targeting 2021 for their first SoC with AMD Radeon GPU IP. However, AnandTech reported 2022. In August 2019, during AMD's Q2 2019 earnings call, AMD stated that Samsung plans to launch SoCs with AMD graphics IP in roughly two years. The first SoC to use Radeon GPU were Exynos 2200, introduced in January 2022, with a custom Xclipse 920 based on AMD's RDNA 2 microarchitecture.

In June 2021, Samsung hired engineers from AMD and Apple to form a new custom architecture team.

In October 2021, Google released their Pixel 6 series of phones based on Google's Tensor SoC, which was made in collaboration with Samsung.

In 2024, Samsung officially announced Exynos 2400, with RDNA 3 microarchitecture-based Xclipse 940. In the same year, along with Exynos 2400, Samsung released Exynos 1480, with RDNA 3 based Xclipse 530, marking the end of Arm Mali GPU era in their mid-range processors.

Current Exynos SoCs (2020–present)
Starting in 2020 Samsung introduced a new series of Exynos SoCs with lower numbers than in the past. This indicates a cut between the past Exynos SoCs at least in naming.

Exynos 800 series

Exynos 900 series

Exynos 1000 series

Exynos 2000 series

Past Exynos SoCs (2010–2019)

List of Exynos Wearable SoCs

List of Exynos modems 
Exynos Modem 303

 Supported modes LTE FDD, LTE TDD, WCDMA and GSM/EDGE
 LTE Cat. 6
 Downlink: 2CA 300 Mbit/s 64-QAM
 Uplink: 100 Mbit/s 16-QAM
 28 nm HKMG Process
Paired with: Exynos 5 Octa 5430 and Exynos 7 Octa 5433
 Devices using: Samsung Galaxy Note 4, Samsung Galaxy Note Edge and Samsung Galaxy Alpha

Exynos Modem 333

 Supported modes LTE FDD, LTE TDD, WCDMA, TD-SCDMA and GSM/EDGE
 LTE Cat. 10
 Downlink: 3CA 450 Mbit/s 64-QAM
 Uplink: 2CA 100 Mbit/s 16-QAM
 28 nm HKMG Process
Paired with: Exynos 7 Octa 7420
 Devices using: Samsung Galaxy S6, Samsung Galaxy Note 5 and Samsung Galaxy A8 (2016)

Exynos Modem 5100

Supported Modes: 5G NR Sub-6 GHz, 5G NR mmWave, LTE-FDD, LTE-TDD, HSPA, TD-SCDMA, WCDMA, CDMA, GSM/EDGE
 Downlink Features:
 8CA (Carrier Aggregation) in 5G NR
 8CA 1.6 Gbit/s in LTE Cat. 19
 4x4 MIMO
 FD-MIMO
 Up to 256-QAM in sub-6 GHz, 2 Gbit/s
 Up to 64-QAM in mmWave, 6 Gbit/s
 Uplink Features:
 2CA (Carrier Aggregation) in 5G NR
 2CA in LTE
 Up to 256-QAM in sub-6 GHz
 Up to 64-QAM in mmWave
 Process: 10 nm FinFET Process
 Paired with: Exynos 9820 and Exynos 9825
 Devices using: Samsung Galaxy S10 and Samsung Galaxy Note 10

Exynos Modem 5123

Supported Modes: 5G NR Sub-6 GHz, 5G NR mmWave, LTE-FDD, LTE-TDD, HSPA, TD-SCDMA, WCDMA, CDMA, GSM/EDGE
Downlink Features:
 8CA 1024-QAM in LTE Cat. 24 (3.0 Gbit/s )
 Up to 256-QAM in sub-6 GHz (5.1 Gbit/s)
 Up to 64-QAM in mmWave (7.35 Gbit/s)
 Uplink Features:
 2CA 256-QAM in LTE Cat. 22 (422 Mbit/s )
 Up to 256-QAM in sub-6 GHz
 Up to 64-QAM in mmWave
 Process: 7 nm FinFET Process
 Paired with: Exynos 990, Exynos 2100, and Google Tensor
 Devices using: Samsung Galaxy S20, Samsung Galaxy Note 20, Samsung Galaxy S21, and Google Pixel 6

Exynos Modem 5300
Supported Modes: 3GPP Release 16 5G NR Sub-6 GHz & mmWave (SA/NSA), LTE-FDD, LTE-TDD, HSPA, TD-SCDMA, WCDMA, CDMA, GSM/EDGE
Downlink Features: Up to 10 Gbit/s
 5G sub-6 GHz
 Up to 256-QAM
 4x4 MIMO
 200 MHz carrier aggregation
 5G mmWave
 Up to 64-QAM
 2x2 MIMO
 800 MHz carrier aggregation
Uplink Features: Up to 3.9 Gbit/s
 5G sub-6 GHz
 Up to 256-QAM
 2x2 MIMO
 400 MHz carrier aggregation
 5G mmWave
 Up to 64-QAM
 2x2 MIMO
 800 MHz carrier aggregation
 Process: 4nm EUV
 Paired with: Exynos 2200, Google Tensor G2, and Google Tensor G3
 Devices using: Samsung Galaxy S22, Google Pixel 7, and Google Pixel 8

Exynos Modem 5400
Supported Modes: 3GPP Release 17 5G NR Sub-6 GHz & mmWave (SA/NSA/NTN), LTE-FDD, LTE-TDD, HSPA, WCDMA, GSM/EDGE, NB-IoT NTN
Downlink Features:
 5G FR1
 Up to 11.2 Gbit/s
 Up to 1024-QAM
 4x4 MIMO
 380 MHz carrier aggregation (5CA: 3x 100 MHz + 2x 40 MHz)
 5G FR2
 Up to 14.8 Gbit/s
 Up to 256-QAM
 2x2 MIMO
 1000 MHz carrier aggregation
Uplink Features: Up to 3.9 Gbit/s
 5G FR1
 Up to 256-QAM
 2x2 MIMO
 400 MHz carrier aggregation
 5G FR2
 Up to 64-QAM
 2x2 MIMO
 800 MHz carrier aggregation
 Process: 4nm EUV
 Paired with: Exynos 2400 and Google Tensor G4
 Devices using it: Samsung Galaxy S24 and Google Pixel 9

List of Exynos IoT SoCs 
Exynos i T200

 CPU: Cortex-M4 @ 320 MHz, Cortex-M0+ @ 320 MHz
 WiFi: 802.11b/g/n Single band (2.4 GHz)
 On-chip Memory: SRAM 1.4 MB
 Interface: SDIO/ I2C/ SPI/ UART/ PWM/ I2S
 Front-end Module: Integrated T/R switch, Power Amplifier, Low Noise Amplifier
 Security: WEP 64/128, WPA, WPA2, AES, TKIP, WAPI, PUF (Physically Unclonable Function)

Exynos i S111

 CPU: Cortex-M7 200 MHz
 Modem: LTE Release 14 NB-IoT
 Downlink: 127 kbit/s
 Uplink: 158 kbit/s
 On-chip Memory: SRAM 512 KB
 Interface: USI, UART, I2C, GPIO, eSIM I/F, SDIO(Host), QSPI(Single/Dual/Quad IO mode), SMC
 Security: eFuse, AES, SHA-2, PKA, Secure Storage, Security Sub-System, PUF
 GNSS: GPS, Galileo, GLONASS, BeiDou

List of Exynos Automotive SoCs

Exynos Auto series 

The Exynos Auto V9 comes with additional features such as:

 Automotive Safety Integrity Level (ASIL)-B standards
 Safety island core
 4× Tensilica HiFi 4 DSP
 Supports up to 6 displays, and up to 12 camera connections (4/4/4 MIPI CSI)
 Supports 4096x4096 120fps encoding and decoding with HEVC(H.265) 
 2x Gb Ethernet

The Exynos Auto V920 comes with additional features such as:
 3× Tensilica HiFi 5 DSP
 Supports up to 6 Displays (3x 5K (8K*2K) + 3x DFHD (3840*1440)), and up to 12 Cameras (3x MIPI CSI 4lanes)
 Supports 4K 240fps decoding (HEVC), 4K 120fps encoding
 2x USXGMII (10 Gbps) Ethernet

Controversies 
Some of Samsung's phone models released between 2019 - 2021 that used Exynos 9611 processor were widely reported by customers having random restarts, freezing and boot-loops. Specific phone models include the Galaxy A50, A50s, A51, M30s, M21, M31, M31s, F41 and Galaxy M21 (2021). Although the issue went unreported on mainstream media  and very few YouTube reviewers covered it based on user reports, the issues were widely documented on Samsung Members official community forum  as well as Reddit & other forums. The impact was significant with hundreds of user posts & comments between 2020 and 2023. Samsung did free board replacements for some early customers who had the phone in warranty. However, the majority of people faced the issue after the 12 month warranty period, mostly starting 1.5 - 3 years after purchase. Samsung never officially acknowledged the issue and no software update was released to solve the problem, although the phones received the promised minimum 4 year security updates. The only official solution available to customers was to purchase replacement board that cost around 60-70% of the phone's cost. Most users resorted to risky yet cheaper 3rd party repair that required re-soldering (also called reballing) the CPU & RAM PoP (Package on Package) which managed to solve issue according to dozens of user reports on said forums.

See also 

 Comparison of Armv8-A processors
 Comparison of Armv7-A processors

Similar platforms 

 A-Series by Allwinner
 Apple silicon (A/S/T/W/H/U/M series) by Apple Inc.
 Kirin by HiSilicon (Huawei)
 i.MX by NXP
 Jaguar and Puma by AMD
 MT by MediaTek
 NovaThor by ST-Ericsson
 OMAP by Texas Instruments
 RK by Rockchip Electronics
 Snapdragon by Qualcomm
 Tegra by Nvidia

References

External links 
 
 Samsung Exynos - Custom CPU
 Samsung Exynos - 5G

ARM-based systems on chips
Samsung Electronics products
System on a chip