Exynos

thumb|Logo of Samsung Exynos thumb|An Exynos 4 Quad (4412), on the circuit board of a Samsung Galaxy S III smartphone 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 debut of Samsung's indigenously developed SoC is Samsung Hummingbird (S5PC110/111), later renamed as Exynos 3 Single 3110. Samsung announced 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.