COMPARISON: AMLogic S905W2 Vs all current SoCs

COMPARISON: AMLogic S905W2 Vs all current SoCs


Today we present the comparison of the new SoC AMLogic S905W2 Against the rest of the SoCs on the current market for TV-Boxes and all kinds of multimedia and streaming players, an interesting chip that we will surely see in countless products.

The SoC S905W2 it is a Quad Core with processors ARM Cortex-A35 that integrates a GPU Mali-G31 MP2 and allows native video decoding H.265, VP9 Y AV1 with support 4K @ 120fps And till 8K, also has support HDR basic. A product that comes to cover the low range, in the higher range we have the current S905X4 that has a bit more computing power in terms of CPU. Let’s see how it performs against the options of other manufacturers such as Allwinner, Nvidia or Rockchip.


AMLOGIC S905W2 SPECIFICATIONS

Testing hardware

To perform the performance tests we will use the X98 mini, a TV-Box that has the Amlogic SoC S905W2. The version that we will test integrates on the board 4 GB de RAM DDR3, 32 GB eMMc storage memory and a micro SD card reader, Dual band Wifi aC connectivity with internal antenna and Bluetooth 4.1. In the connectors section, this Smart Box includes 2 USB 2.0 ports, HDMI 2.0 port, SPDIF audio output, micro SD reader, 10/100 network connector, infrared port extension and finally an analog port for audio and video.

General specifications

The SoC AMLogic S905W2 looks like it’s made of 12 nm for consumption and thermals, but we do not have confirmation and has four cores CPU ARM Cortex-A35 until 1.8 GHz. It has native connections for HDMI 2.1 that goes to 4K @ 12fps, USB 3.0 support, internal storage up to eMMC, 10/100 Ethernet and audio capacity up to 8 audio input and output channels. In the graphic section we have the GPU Mali-G31 MP2 which has Vulkan support.

CPU

The AMLogic S905W2 Quad Core has four ARM cores Cortex-A35, is able to reach the 1.8 GHz and it surprises us with only 32 bit ABIs due to firmware limitations, if it supports ARMv8-A instruction set due to hardware.

  • As we see the system does NOT support ABI armeabi-v8a, we can only run applications in 32bit.
  • CPU id: serial 37 / revision r1p0

GPU

For the graphics there is a GPU Mali-G31 MP2 with a maximum speed of 650Mhz and performance up to 1.3 Gpix / s per core = 2.6Gpix / s (0.65 Gpix for the Mali-450). It has support for OpenGL ES 3.2 And till Volcano 1.2. We also have OpenCL 2.0 FP support, Render Script, L2 Cache support up to 512MB and AMBA 4 ACE-LITE bus. With this GPU we can play powerful titles like PUBG in medium settings.


VPU

In this SoC we find the video engine Advanced Video Engine for decoding that supports codecs h.265, VP9 and as a novelty AV1 format compatible HDR10, and support for REC709 / BT2020 profiles. This system allows us to take video up to resolutions UHD [email protected] y [email protected] hassle-free thanks to its video output HDMI 2.1 with support HDCP 2.3 which theoretically can be compatible with automatic refresh change synchronization, but this will depend on the implantation in the firmware and the technology of our TV.

Android system

The system that we find in this first Box that we are going to analyze is based on Android 11 (API 30), the core that controls the system is the kernel 5.4.86, a fairly modern version that luckily leaves behind the kernel 4 that we had in previous SoC models.

PERFORMANCE TEST

We perform several performance tests with the SoCs AMLogic S905W2, we make a comparison against the Tegra + SoC of the Nvidia Shield TV, Mediatek of the Fire TV Stick 4K, the extended Allwinner H616, Rockchip RK3566 and the latest most popular Amlogic in the sector.

Geekbench

A test that gives us very interesting values ​​of the gross power, tests mono core and multi core CPU in addition to GPU computing. As we see in the results, in general, they are at a similar level to that of other products in its sector, in terms of CPU we have less power than the S905X4, but it is not very significant either, for multimedia use it is similar.

3DMark

The test of graphics performance par excellence with a fairly solid continuity in terms of results which helps us when comparing the performance of GPUs historically. How we see the GPU Mali-G31 MP2 It has an identical performance to the S905X4, this is the aspect we have no limitations compared to its rival.

PCMark

This test gives us an idea of ​​the powerhouse in desktop applications of this hardware performing tasks such as video editing, handling text or audio files, something that is increasingly used on Android. The result is a sum of all these aspects and is influenced by the general hardware components. The figures from this test reveal that the new S905W2 It is somewhat below the S905X4 for having somewhat less computing power in terms of CPU.

VPU and Sound

We passed a series of performance tests regarding video playback on the AMLogic S905W2 to check the formats supported by the VPU integrated. As we can see the results are good with the codecs h.265 Y VP9 P2 up to resolutions 4K @ 120fps and included for 8K, we have support for the new codec AV1, but it seems that the firmware from issues and hardware acceleration is not enabled for this format. We have good performance with the formats 10bit color, we also have HDR support in the basic format.

  • Picture quality: Correct colors and acceptable processing / NO image quality adjustments.
  • HDR compatibility: Basic HDR supported / Firmware allows disable.
  • HDMI-CEC: Not available in base firmware.
  • Auto framerate: Not available by default.
  • Sound: By default it supports DD or DTS 5.1 sound. See review of the specific model.

Video and audio test results

Video Formats Result
h.264 / 1080i / 8bit (IPTV) Correct
h.264 / 1080p / 4K / 8bit Correct
h.264 / 1080p / 10bit (anime) Frame Break (SW)
h.265 / 1080p / 8bit Correct
h.265 / 1080p / 10bit (anime) Correct
h.265 / [email protected] / 8bit Correct
h.265 / [email protected] / 10bit HDR Correct
VP9 P1 / 4K @ 24fps / 8bit Correct
VP9 P2 / [email protected] / 10bit HDR Correct
VP9 P2 / [email protected] / 10bit HDR Correct
AV1 / 4K @ 24fps / 10bit It should be correct, but the Firmware does not activate the AV1 codec
Max. Bitrate 100 Mbps = 12,5 MB/s.
  • SW = does not have hardware acceleration and may have a specific jump in very large files.

CONCLUSIONS

After making our comparison we can say that the new SoC AMLogic S905W2 It offers us a power quite similar to the current S905X4. The raw monocore and multicore performance of the Cortex-A35 It is somewhat lower than the A55s that we find in the Amlogic S905X4, but it is not something very significant for normal use. Regarding graphic power the GPU Mali-G31 MP2 maintains a fairly good level and is perfectly functional, defends itself quite well and has good figures to allow gaming even in titles like PUBG at a low level.

This new SoC AMLogic S905W2 It is a good platform in terms of video playback, on the one hand we have support for the new codec AV1 even though it seems that the Android 11 firmware from problems for now in this regard. We can reproduce content h.265 or VP9 in quality 4K @ 120fps without problems and even reach 8K. We have support for HDR basic and is HDMI-CEC compliant. As a basis for this new SoC we have Android 11but it looks like it needs improvement.

How we have checked the new AMLogic S905W2 offers us a pretty good performance for its price, if we want a basic TV-Box for KODI and multimedia we will have a good experience, similar to that of the S905X4.

OTHER COMPARISONS

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