Atari VCS 400 GPU vs Radeon RX 550X

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Primary details

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

Place in the ranking586not rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 4.0 (2016−2020)GCN 5.0 (2017−2020)
GPU code nameLexaBanded Kestrel
Market segmentDesktopDesktop
Release date16 December 2018 (5 years ago)14 December 2020 (3 years ago)
Launch price (MSRP)no data$249

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores512192
Core clock speed1100 MHz300 MHz
Boost clock speed1183 MHz1201 MHz
Number of transistors2,200 million4,940 million
Manufacturing process technology14 nm14 nm
Power consumption (TDP)50 Watt15 Watt
Texture fill rate37.8614.41
Floating-point processing power1.211 TFLOPS0.4612 TFLOPS
ROPs164
TMUs3212

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 3.0 x8IGP
Length145 mm295 mm
Width2-slotIGP
Supplementary power connectorsNoneNone

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 typeGDDR5DDR4
Maximum RAM amount4 GB4 GB
Memory bus width128 Bit128 Bit
Memory clock speed6000 MHz2.4 GB/s
Memory bandwidth96 GB/s38.4 GB/s

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 Connectors1x DVI, 1x HDMI, 1x DisplayPortNo outputs
HDMI+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_0)12 (12_1)
Shader Model6.46.4
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.2.1311.2

Pros & cons summary


Recency 16 December 2018 14 December 2020
Power consumption (TDP) 50 Watt 15 Watt

Atari VCS 400 GPU has an age advantage of 1 year, and 233.3% lower power consumption.

We couldn't decide between Radeon RX 550X and Atari VCS 400 GPU. 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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AMD Radeon RX 550X
Radeon RX 550X
AMD Atari VCS 400 GPU
Atari VCS 400 GPU

Comparisons with similar GPUs

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Community ratings

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