Amlogic S905X3 vs Amlogic S905X4

In this guide, we compare the Amlogic S905X3 vs Amlogic S905X4 in terms of CPU performance, GPU capabilities, video decoding, memory, storage, Ethernet, and neural network capabilities. These two popular SoCs (chipsets) for TV boxes share many similarities, but there are a few key differences that set them apart, particularly in video decoding.

CPU Comparison – Amlogic S905X3 vs S905X4

The Amlogic S905X4 is designed for TV boxes with 4 CPU cores, 4 threads, and a clock speed of 1.9GHz. Meanwhile, the S905X3 also features 4 cores and 4 threads with a frequency of 1.9GHz. Both chipsets are built on 12nm lithography with no turbo frequency support and utilize 4x ARM Cortex-A55 cores clocked at 1.91GHz. Each SoC has 1MB cache memory and a maximum memory capacity of 4GB.

When it comes to neural network computing power, the Amlogic S905X3 offers 1.2 TOPS, while the S905X4 is expected to provide higher performance, making it more future-proof for AI-driven tasks.

GPU Comparison – Amlogic S905X3 vs S905X4

The Amlogic S905X4 boasts better GPU performance, excelling in data manipulation, parallel task processing, and display operations. It supports Vulkan 1.1, which enhances display quality for protected content. The S905X3, with Vulkan 1.0, is still capable of multitasking with single GPU support. Both SoCs use integrated ARM Mali-G31 MP2 GPUs, featuring 2 execution units and 32 shading units each. However, the S905X4 stands out in video decoding capabilities.

Video Decoding & Audio Processing – S905X3 vs S905X4

Video decoding is where the Amlogic S905X4 truly shines. It supports 4K 120fps 10-bit AV1 decoding and can handle 8K UHD content, which is crucial as streaming services like Netflix plan to adopt this technology. In comparison, the S905X3 lacks the same advanced video decoding capabilities.

For audio, the Amlogic S905X4 employs the 4th generation HiFi DSP for optimized audio and voice execution, delivering improved sound quality over the S905X3. Additionally, the S905X4 uses the HDCP 2.3 protocol for secure 4K and 8K UHD video output, making it compatible with select smart TV sets that support this protocol.

By optimizing content delivery, the Amlogic S905X4 is geared towards an enhanced video and audio experience, making it a better choice for high-performance TV boxes.

Amlogic S905X3 vs Amlogic S905X4 | Comparison Table