Amlogic S905X4 vs Amlogic S905Y4

Amlogic S905X4 on Amazon USA
Amlogic S905Y4 on Amazon USA

Comparison of the technical characteristics between the processors, with the Amlogic S905X4 on one side and the Amlogic S905Y4 on the other side. The first is dedicated to the tv box sector, It has 4 cores, 4 threads, a maximum frequency of 1.9GHz. The second is used on the tv box segment, it has a total of 4 cores, 4 threads, its turbo frequency is set to 2.0 GHz. The following table also compares the lithography, the number of transistors (if indicated), the amount of cache memory, the maximum RAM memory capacity, the type of memory accepted, the release date, the maximum number of PCIe lanes, the values ​​obtained in Geekbench 4 and Cinebench R15.


Processor Amlogic S905X4 Amlogic S905Y4
Market (main) TV Box TV Box
ISA ARMv8.2-A (64-bit) ARMv8-A (64-bit)
Microarchitecture Cortex-A55 Cortex-A35
Family S9 Gen 4 S9 Gen 4
Part number(s), S-Spec S905X4 S905Y4
Release date Q1 2021 Q2 2021
Lithography 12 nm 12 nm
Cores 4 4
Threads 4 4
Base frequency 1.9 GHz 2.0 GHz
Turbo frequency - -
High performance cores 4x ARM Cortex-A55 @ 1.91 GHz 4x ARM Cortex-A35 @ 2.0 GHz
Cache memory 1 MB 1 MB
Max memory capacity 4 GB 4 GB
Memory types DDR3/3L/4, LPDDR3/4 1066 MHz DDR3/4, LPDDR3/4, DDR3200
TDP 5 W 5 W
GPU integrated graphics ARM Mali-G31 MP2 ARM Mali-G31 MP2
GPU execution units 2 2
GPU shading units 32 32
GPU clock 850 MHz 850 MHz
GPU FP32 floating point 20.8 GFLOPS 20.8 GFLOPS
Socket SoC SoC
Drystone MIPS 21,800 DMIPS 16,500 DMIPS
Crypto engine AES, TDES, SHA-1/SHA-2/HMAC,
Security TrustZone, Secure boot TrustZone, Secure boot
Max display resolution 4K@120fps 4K@60fps
Video decoding H.265 4K@120fps, H.264 4K@75fps H.265 4K@60fps, H.264 4K@30fps
Video encoding H.265/H.264 1080p@60fps H.265/H.264 1080p@60fps
Modem 10/100/1000 MAC, 10/100 PHY 10/100/1000 MAC, 10/100 PHY
Connectivity USB 2.0, USB 3.0, HDMI2.1 Micro USB, HDMI 2.1
Wi-Fi 2.4GHz/5GHz, Wi-Fi 5 802.11 a/b/g/n/ac Wi-Fi 2.4GHz/5GHz 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.2 Bluetooth 4.2
Audio DAC, SPDIF, I2S, PDM -
(Android 64-bit)
Geekbench 4 single core
769 717
(Android 64-bit)
Geekbench 4 multi-core
2,154 1,794
GFLOPS performance
(Multi-core / watt performance)
Performance / watt ratio
431 pts / W 359 pts / W

We can better compare what are the technical differences between the two processors.

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We see that the two processors have an equivalent number of cores, the turbo frequency of Amlogic S905Y4 is bigger, that their respective TDP are of the same order. Both were produced in the same year.

Performances :

Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench 4.

On Android 64-bit:

Geekbench 4 - Multi-core & single core score - Android 64-bit
Amlogic S905X4 769
Amlogic S905Y4 717

In single core, the difference is 7%. In multi-core, the differential gap is 20%.

Geekbench 4 is a complete benchmark platform with several types of tests, including data compression, images, AES encryption, SQL encoding, HTML, PDF file rendering, matrix computation, Fast Fourier Transform, 3D object simulation, photo editing, memory testing. This allows us to better visualize the respective power of these devices. For each result, we took an average of 250 values on the famous benchmark software.


Amlogic S905X4 Intel equivalentAmlogic S905X4 AMD equivalentAmlogic S905Y4 Intel equivalentAmlogic S905Y4 AMD equivalent

See also:

Amlogic S905XAmlogic S905X-HAmlogic S905X2Amlogic S905X2-BAmlogic S905X3Amlogic S905X3-B

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