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Samsung Exynos 7420 Octa

Samsung 7420 Octa

The Samsung Exynos 7420 Octa (also called Exynos 7 Octa) is a high-end system-on-a-chip (SoC) for smartphones and tablets. It was launched in March 2015 alongside the Samsung Galaxy S6 and features four Cortex-A57 cores clocked at up to 2.1 GHz. Furthermore, there are four additional Cortex-A53 cores at up to 1.5 GHz, an ARM Mali-T760 MP8 GPU and a 2x 32 bit LPDDR4-3104 memory controller (up to 24.8 GB/s). It is one of the first fully 64-bit capable ARM SoCs for Android devices.

Processor

Cortex-A57 and Cortex-A53 represent the successors of the Cortex-A15 and Cortex-A7 architecture. In addition to some small tweaks leading to a somewhat higher performance per clock, both Cortex-A57 and -A53 are now 64-bit capable ARMv8 designs (Cortex-A15 and -A7: 32 bit ARMv7). Thanks to its advanced 14 nm process, clocks and performance of the Exynos 7420 are quite stable even in long-lasting benchmarks. Overall, the cpu performance is above the Nvidia Tegra K1 or Qualcomm Snapdragon 810

While the powerful Cortex-A57 cores will handle complex software and games, the SoC can switch to the more efficient Cortex-A53 cluster in less demanding applications. If necessary, it's possible to activate individual cores from each cluster or even all eight cores at the same time. This concept developed by ARM is known as "big.LITTLE" and intended to improve the battery life.

Graphics

The Exynos 7420 integrates a Mali-T760 MP8 GPU, which offers eight shader clusters clocked at up to 772 MHz (302 GFLOPS). The Mali-T760 supports OpenGL ES 3.1, OpenCL 1.1 and DirectX 11 and offers a performance above the Adreno 430 (Snapdragon 810) or PowerVR GX6450 (Apple A8). Thus, the GPU is one of the high-end solutions as of 2015 and can handle even the most demanding Android games in high resolutions (Galaxy S6: 2560 x 1440 pixels) and detail settings.

Power Consumption

The Exynos 7 Octa is the first smartphone SoC to be manufactured in a 14 nm process with FinFETs (Samsung LPE). Therefore, the Exynos 7420 is one of the most energy efficient chips in early 2015 and runs much cooler than the competing Qualcomm Snapdragon 810.

SeriesSamsung Exynos
CodenameCortex-A57/-A53
Series: Exynos Cortex-A57/-A53
» Samsung Exynos 7420 Octa2100 MHz8 / 8
Samsung Exynos 5433 Octa (compare)1900 MHz8 / 8
Clock Rate2100 MHz
Number of Cores / Threads8 / 8
Manufacturing Technology14 nm
FeaturesARM Mali-T760 MP8 GPU (773 MHz), 4x Cortex-A57 (2.1 GHz) + 4x Cortex-A53 (1.5 GHz, big.LITTLE), 2x 32 Bit LPDDR4 Memory Controller
GPUARM Mali-T760 MP8 (700 - 772 MHz)
64 Bit64 Bit support
Announcement Date03/01/2015
Product Link (external)Samsung Exynos 7420 Octa

Benchmarks

3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
min: 16117     avg: 17761.2     median: 17400 (20%)     max: 19260 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 4843     avg: 4958     median: 4958 (16%)     max: 5073 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 1146     avg: 1237.5     median: 1237.5 (26%)     max: 1329 Points
Geekbench 3 - 64 Bit Multi-Core Score
min: 4207     avg: 4933     median: 4953 (13%)     max: 5619 Points
Geekbench 3 - 64 Bit Single-Core Score
min: 1202     avg: 1385.5     median: 1410 (29%)     max: 1520 Points
Mozilla Kraken 1.1 - Total Score *
min: 4037.4     avg: 4731.1     median: 5066.7 (9%)     max: 5089.2 ms
Sunspider - 1.0 Total Score *
min: 347.1     avg: 518     median: 546 (6%)     max: 688.5 ms
Octane V2 - Total Score
min: 7534     avg: 8335.8     median: 8518 (16%)     max: 9253 Points
Vellamo 3.x - Browser
min: 4666     avg: 4957     median: 4742 (63%)     max: 5463 Points
Quadrant Standard Edition 2.0
min: 33360     avg: 34836     median: 34729 (80%)     max: 36419 points
AnTuTu v5 - Total Score
min: 56852     avg: 65987.2     median: 68265.5 (69%)     max: 72094 Points
PassMark PerformanceTest Mobile V1 - CPU Tests
min: 162584     avg: 169599     median: 169794 (22%)     max: 176225 Points
PCMark for Android - Work performance score
min: 5050     avg: 5097.7     median: 5113 (26%)     max: 5130 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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