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The difference between chip Amlogic Amlogic S905W2 and chip Amlogic S905W

  • Author:Tomato
  • Source:www.sztomato.com
  • Release on:2021-09-15
The difference between chip Amlogic S905W2 and chip Amlogic S905W


1. Comparison of chip manufacturing process
Amlogic S905W2: 12nm is defined as a low-power AP
S905W: 28nm

2. Comparison of Cortex-A35 and Cortex-A53:
Cortex-A35 and Cortex-A53 have many similarities, including the 64-bit Armv8-A architecture, the 8-segment sequence refers to the dual-command pipeline.
At the same main frequency, Cortex-A35 can reach 80%-100% performance of Cortex-A53 according to different loads;
In terms of power consumption, in theory, Cortex-A35 only consumes 68% of the power when Cortex-A53 performs the same task. Power consumption and temperature are further improved.

3. CPU frequency:
Amlogic S905W2 CPU highest frequency: 1.8GHz
S905W CPU highest frequency: 1.2GHz

4. GPU:
Amlogic S905W2 ARM MALI G31 MP2: Maximum operating frequency 800MHz
GPU: OpenGL ES 3.2, vulkan 1.1 and OpencL 2.0 support.
S905W MALI 450: Maximum operating frequency: 666MHz
GPU: OpenGL ES 1.1/2.0 and OpenVG 1.1 support

5.RAM
Amlogic S905W2 supports up to 4GB, and the 32BIT RAM memory is sufficient.
S905W supports up to 2GB, 16BIT RAM memory capacity is average

6. Resolution output:
Amlogic S905W2: Supports up to 4K, 60Hz resolution output, supports HDMI2.1 transmission protocol, does not support HDCP.
If the customer has demand, it is recommended to use S905Y4

S905W supports up to 4K 30Hz resolution output, supports HDMI2.0 transmission protocol, supports HDCP.

7. Video decoding:
Amlogic S905W2 supports AV1 decoding, supports the highest decoding: 4K*2K 60FPS
Support HDR10, HDR10+
S905W does not support AV1, supports the highest decoding: 4K*2K 30FPS
support HDR 10

The difference between chip Amlogic Amlogic S905W2 and chip Amlogic S905W