Samsung Exynos 5420 Octa

Samsung 5420 Octa

The Samsung Exynos 5420 Octa (also called Exynos 5 Octa) is a system-on-a-chip (SoC) for smartphones and tablets. It was launched in mid-2013 alongside the Samsung Galaxy Note 3 and features four Cortex-A15 cores clocked at up to 1.9 GHz. Furthermore, there are four additional Cortex-A7 cores at up to 1.3 GHz, an ARM Mali-T628 MP6 GPU and a 2x 32 bit LPDDR3(E)-1866 memory controller up to 14.9 GB/s.


Compared to the commonly used Cortex-A9 and Cortex-A7 architecture, the A15 cores offer at least 50 percent higher performance per clock, which makes the Exynos 5420 one of the fastest ARM SoCs of 2013. On average, the CPU performance is roughly on par with the Qualcomm Snapdragon 800 or Nvidia Tegra 4

In addition, Samsung has integrated four Cortex-A7 cores clocked up to 1.3 GHz. Depending on the system load, the SoC will automatically switch between the more powerful A15 cores and the more efficient A7 cores to improve power consumption and battery life in a concept Samsung calls big.LITTLE". In contrast to the previous Exynos 5410, all eight cores can be used simultaneously, so that the chip can be described as the first "true" octa-core SoC in its class.


The Exynos 5420 integrates a Mali-T628 MP6 GPU, which offers six shader clusters clocked at up to 600 MHz (115 GFLOPS). The Mali-T628 supports OpenGL ES 3.0, OpenCL 1.1 and DirectX 11 and offers a performance that is just sligthly behind the Adreno 330 (Snapdragon 800) or a PowerVR G6430 (Apple A7). Thus, the GPU is one of the high-end solutions as of 2013 and can run even the most demanding Android games at high resolutions (up to 2560 x 1600 pixels) and detail settings.

Power Consumption

The Exynos 5 Octa should have an estimated maximum TDP of about 3 to 4 W on a smartphone. It is possible that sustained load will lead to throttling of the CPU or GPU, especially in smartphones.

SeriesSamsung Exynos
Series: Exynos Cortex-A7/-A15
Samsung Exynos 5430 Octa (compare)1800 MHz8 / 8
» Samsung Exynos 5420 Octa1800 - 1900 MHz8 / 8
Samsung Exynos 5410 Octa (compare)1600 - 1800 MHz8 / 8
Clock Rate1800 - 1900 MHz
Level 1 Cache8x 64 KB
Level 2 Cache512 + 2048 KB
Number of Cores / Threads8 / 8
Manufacturing Technology28 nm
FeaturesARM Mali-T628 MP6 GPU (600 MHz), 4x Cortex-A15 (1.8 - 1.9 GHz) + 4x Cortex-A7 (1.3 GHz, big.LITTLE), 2x 32 Bit LPDDR3(E)-1866 Memory Controller
Announcement Date09/25/2013
Product Link (external)Samsung Exynos 5420 Octa


3DMark - Ice Storm Extreme Physics 1920x1080
min: 11938     avg: 13575.8     median: 13957 (17%)     max: 14450 Points
Sunspider - 0.9.1 Total Score *
min: 1132     avg: 1152.4     median: 1136 (11%)     max: 1188 ms
AnTuTu v4 - Total Score
min: 34217     avg: 34703     median: 34666 (81%)     max: 35262 points
PassMark PerformanceTest Mobile V1 - CPU Tests
min: 17610     avg: 18235     median: 18111 (2%)     max: 19108 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

restrict list: