Radeon 660M vs Atari VCS 800 GPU

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Primary details

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

Place in the rankingnot rated329
Place by popularitynot in top-100not in top-100
Power efficiencyno data28.39
ArchitectureGCN 5.0 (2017−2020)RDNA 2.0 (2020−2024)
GPU code nameBanded KestrelRembrandt+
Market segmentDesktopLaptop
Release date14 December 2020 (3 years ago)3 January 2023 (1 year ago)
Launch price (MSRP)$399 no data

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 cores192384
Core clock speed300 MHz1500 MHz
Boost clock speed1201 MHz1900 MHz
Number of transistors4,940 million13,100 million
Manufacturing process technology14 nm6 nm
Power consumption (TDP)15 Watt40 Watt
Texture fill rate14.4145.60
Floating-point processing power0.4612 TFLOPS1.459 TFLOPS
ROPs416
TMUs1224
Ray Tracing Coresno data6

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).

InterfaceIGPPCIe 4.0 x8
Length295 mmno data
WidthIGPno data
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 typeDDR4System Shared
Maximum RAM amount8 GBSystem Shared
Memory bus width128 BitSystem Shared
Memory clock speed1200 MHzSystem Shared
Memory bandwidth38.4 GB/sno data
Shared memoryno 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 outputsPortable Device Dependent

API compatibility

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

DirectX12 (12_1)12 Ultimate (12_2)
Shader Model6.46.7
OpenGL4.64.6
OpenCL2.12.0
Vulkan1.21.3

Pros & cons summary


Recency 14 December 2020 3 January 2023
Chip lithography 14 nm 6 nm
Power consumption (TDP) 15 Watt 40 Watt

Atari VCS 800 GPU has 166.7% lower power consumption.

Radeon 660M, on the other hand, has an age advantage of 2 years, and a 133.3% more advanced lithography process.

We couldn't decide between Atari VCS 800 GPU and Radeon 660M. We've got no test results to judge.

Be aware that Atari VCS 800 GPU is a desktop card while Radeon 660M is a notebook 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 Atari VCS 800 GPU
Atari VCS 800 GPU
AMD Radeon 660M
Radeon 660M

Comparisons with similar GPUs

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Community ratings

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4.8 5 votes

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3.6 306 votes

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Questions & comments

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