Samsung Mobile Processor Exynos 7 Octa 7420

Mobile Processor

Exynos 7 Octa (7420)
The Industry’s First Mobile Processor Built on 14nm FinFET Process
The Exynos 7420 is the industry’s first mobile processor built on 14nm FinFET process for enhanced performance and better power efficiency. While octa-core CPU with big.LITTLE processing offers powerful processing power for seamless multitasking experience, the advanced GPU, MFC and ISP enables user to enjoy life-like multimedia experiences with realistic 3d contents, high-resolution videos and photos.
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14nm FinFET Process

Long lasting battery life
With the FinFET technology of 3-dimensional transistors, Exynos 7420 overcame the limitations of conventional 2-dimentional planar technology achieving further performance boost and power efficiency optimization. The vertical 3-dimensional structure creates more conducting channels allowing better current flow and substantially reduces current leakage resulting in enhanced performance and lower power consumption.
Infographic describing 20% More Performance Infographic describing 35% Less Power Consumption Top view of Exynos 7 Octa (7420) processor
Samsung’s 14nm process uses FinFET structure, unlike the previous process’ planar structure. In a planar structure, gate is attached to the transistor on only one surface, whereas in a FinFET structure, gate is attached on three sides of the channel allowing more effective control of the current leakage than planar. Also, in planar structure, electrons can only move from source to drain through one surface under the gate, whereas in FinFET structure, electrons can move across three surfaces of the fin-shaped 3D structure. Furthermore, with 14nm process’ shorter gate length, which means shorter distance between the source and the drain, electrons need to move shorter distance enabling transistors to switch on and off quickly. Simply put, if the channel is a road, there are more number of lanes that are shorter in length. With more paths that are shorter in length, more electrons can move faster through the channel resulting in enhanced performance.
Illustrative image of Planar and 3D FinFET

64-bit CPU

Computing Power
The Exynos 7420 is equipped with eight CPU cores consist of four big cores (ARM® Cortex®-A57™ up to 2.1GHz) for intensive workloads and four LITTLE cores (ARM Cortex-A53 up to 1.5GHz) for lighter tasks. By fully supporting a 64-bit architecture in both hardware and software, the Exynos 7420 enables running performance intensive tasks without any buffering.
Illustrative image of 64-bit architecture with Image Processing, Augmented Reality,  High-end Game and Face/Eye Recognition icons

Display, GPU and MFC

Life-like 3D Graphics
and Multimedia
The Exynos 7420 supports high resolution display up to WQUXGA (3840x2400) and Ultra HD (4K). With a newly added HEVC(H.265) encoder to its advanced Multi Format Codec (MFC) that features H.265(HEVC) decoder and VP9 decoder, the processor can record and playback 4K video at 30fps. And the Exynos 7420 employs the ARM Mali™-T760 GPU for realistic 3D gaming and graphic-intensive user interface.
Smartphone in in horizontal mode with 4K UHD and Exynos 7 Octa (7420) processor on its display


  • CPU
    2.1GHz Quad-Core (Cortex®-A57) +
    1.5GHz Quad-Core (Cortex®-A53)
  • GPU
    Mali™-T760 MP8
  • Process
    14nm FinFET Process
  • Display
    Up to WQUXGA (3840x2400),
    4K UHD (4096x2160)
  • Storage
    eMMC 5.1, UFS 2.0, SD 3.0
  • Memory
  • Camera
    Rear 20MP, Front 8MP
  • Video
    4K UHD 30fps encoding and
    decoding with HEVC (H.265),
    H.264, VP9 (decoding) Codec
  • * All functionality, features, specifications and other product information provided in this document including, but not limited to, the benefits, components, performance, availability, and capabilities of the product are subject to change without notice or obligation.