S905X2 vs S905X3 – Functional comparison of TV Boxes chipsets
TV Boxes with the new Amlogic S905X3 appeared in online store offers, including Beelink GT1mini-2 (at Gearbest for $73.99). With the announcement of the new GT1mini-2 TV Box, we’ve compared the S905X2 vs S905X3 SoC.
As you know Amlogic S905X3 compared to Amlogic S905X2, S905X3 SoC has better performance visible in benchmarks, and also supports Neural Network Accelerator (NNA) for AI. Cortex A55 has 15% to 20% performance improvement and simultaneously lower power consumption than Cortex A53.
The Neural Network Accelerator (NNA) is the most important change, as it should allow for better support for voice commands, language processing, or other workloads which AI will use. AI (artificial intelligence) is used for voice recognition in TV Boxes.
Below you will find a simple table comparing both Amlogic’s chipsets, prepared by SDMC.
Amlogic S905X2 vs S905X3 – Features Comparison
| SoC | Amlogic S905X2 | Amlogic S905X3 |
| CPU | 4x Arm Cortex-A53 @ 1.80 GHz | 4x Arm Cortex-A55 @ 1.91 GHz |
| Neural Network Accelerator | N/A | Optional 1.2 TOPS NNA (Supports all major deep |
| GPU | Mali-G31 MP2 with OpenGL ES 3.2, Vulkan 1.0, and OpenCL 2.0 | |
| Always-on MCU | Cortex-M3 & Cortex-M4 | (Optional ) Cortex-M3 & Cortex-M4 |
| DDR | DDR3-2133 /DDR3L-2133 / DDR4-2666 /LPDDR3-2133 /LPDDR4-3200 SDRAM up to 4G | DDR3-2133 /DDR3L-2133 / DDR4-3200 /LPDDR3-2133 / LPDDR4-3200 SDRAM up to 4G |
| Video Decoding | H.265, VP9, AVS2 up to 4Kp75 10bit H.264 4Kp30 | |
| HDMI Tx | HDMI 2.1 HDCP2.2 | |
| HDR | HLG/HDR10/ 10+ Dolby vison，TCH PRIME | |
| Process | 12nm | |
| Mic Input | 8 x PDM | |
| USB3.0/PCIE | USB3.0/PCI-E V2 (multiplexed) | |
| Package | 14 x 14mm BGA | |
| Embedded Temperature Sensor | Yes | |
It is not difficult to notice that the differences occur in DDR4 memory. The higher maximum frequency for DDR4 memory (3200 MHz vs 2666 MHz). The difference is that S905X3’s memory interface has improved with the new SoCs supporting DDR4 up to 3200 MHz.
In the picture new SDMC DV8819 Amlogic S905X3 Android TV OTT Box with AI processor. DV8819 is a 4K OTT TV Box running on Android TV 9.0 Pie OS, support Custom Android TV Operator Tier Launcher, designed for Telecom, Broadcasting and Pay TV operators.
Video Playback
In the video playback section, Amlogic S905X2 and S905X3 support full 4K decoding. Exactly, equipped with an up-to-date HDMI 2.1 interface, both of them can decode Ultra HD 4K video content at up to 75 frames per second for H.265, AVS2, and VP9, providing a fast way to send video and audio output.
Summary
Overall, there hasn’t a big difference between S905X2 and S905X3 except for the last one with cortex-A55 CPU, frequency for DDR4 memory and AI. Therefore, the cost of S905X3 SoC is higher than S905X2.
