Radeon 550X Mobile vs VIA S3G UniChrome Pro II

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
Architectureno dataGCN 4.0 (2016−2020)
GPU code nameZoetropePolaris 23
Market segmentLaptopLaptop
Release date1 October 2006 (17 years ago)11 April 2018 (6 years ago)
Current priceno data$467

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA coresno data640
Core clock speedno data1100 MHz
Boost clock speed200 MHz1287 MHz
Number of transistorsno data2,200 million
Manufacturing process technologyno data14 nm
Power consumption (TDP)no data50 Watt
Texture fill rateno data51.48
Floating-point performanceno data1,647 gflops

Form factor & compatibility

Information on VIA S3G UniChrome Pro II and Radeon 550X Mobile compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interfaceno dataPCIe 3.0 x8

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeno dataGDDR5
Maximum RAM amountno data4 GB
Memory bus widthno data64 Bit
Memory clock speedno data6000 MHz
Memory bandwidthno data48 GB/s
Shared memory+no data

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectorsno dataNo outputs

API compatibility

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectXno data12 (12_0)
Shader Modelno data6.4
OpenGLno data4.6
OpenCLno data2.0
Vulkanno data1.2.131

Pros & cons summary


Recency 1 October 2006 11 April 2018

550X Mobile has an age advantage of 11 years.

We couldn't decide between VIA S3G UniChrome Pro II and Radeon 550X Mobile. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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VIA S3G UniChrome Pro II
S3G UniChrome Pro II
AMD Radeon 550X Mobile
Radeon 550X Mobile

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