Atari VCS 400 GPU vs Radeon HD 6550A

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Primary details

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

Place in the ranking919not rated
Place by popularitynot in top-100not in top-100
Power efficiency3.64no data
ArchitectureTeraScale 2 (2009−2015)GCN 5.0 (2017−2020)
GPU code namePinewoodBanded Kestrel
Market segmentLaptopDesktop
Release date7 February 2011 (13 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 cores480192
Core clock speed550 MHz300 MHz
Boost clock speedno data1201 MHz
Number of transistors627 million4,940 million
Manufacturing process technology40 nm14 nm
Power consumption (TDP)35 Watt15 Watt
Texture fill rate13.2014.41
Floating-point processing power0.528 TFLOPS0.4612 TFLOPS
ROPs84
TMUs2412

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).

InterfaceMXM-A (3.0)IGP
Lengthno data295 mm
Widthno dataIGP
Supplementary power connectorsno dataNone

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 typeGDDR3DDR4
Maximum RAM amount2 GB4 GB
Memory bus width128 Bit128 Bit
Memory clock speed800 MHz1200 MHz
Memory bandwidth25.6 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 ConnectorsNo outputsNo outputs

API compatibility

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

DirectX11.2 (11_0)12 (12_1)
Shader Model5.06.4
OpenGL4.44.6
OpenCL1.22.1
VulkanN/A1.2

Pros & cons summary


Recency 7 February 2011 14 December 2020
Maximum RAM amount 2 GB 4 GB
Chip lithography 40 nm 14 nm
Power consumption (TDP) 35 Watt 15 Watt

Atari VCS 400 GPU has an age advantage of 9 years, a 100% higher maximum VRAM amount, a 185.7% more advanced lithography process, and 133.3% lower power consumption.

We couldn't decide between Radeon HD 6550A and Atari VCS 400 GPU. We've got no test results to judge.

Be aware that Radeon HD 6550A is a notebook card while Atari VCS 400 GPU is a desktop one.


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 HD 6550A
Radeon HD 6550A
AMD Atari VCS 400 GPU
Atari VCS 400 GPU

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