Radeon Steam Deck 8CU vs 660M

VS

Primary details

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

Place in the ranking329not rated
Place by popularitynot in top-100not in top-100
Power efficiency28.19no data
ArchitectureRDNA 2.0 (2020−2024)RDNA 2 (2022−2023)
GPU code nameRembrandt+RDNA 2 Sephiroth
Market segmentDesktopLaptop
Release date3 January 2023 (1 year ago)9 November 2023 (1 year ago)

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 cores384512
Core clock speed1500 MHzno data
Boost clock speed1900 MHz1900 MHz
Number of transistors13,100 millionno data
Manufacturing process technology6 nm6 nm
Power consumption (TDP)40 Wattno data
Texture fill rate45.60no data
Floating-point processing power1.459 TFLOPSno data
ROPs16no data
TMUs24no data
Ray Tracing Cores6no data

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 4.0 x8no data
WidthIGPno data
Supplementary power connectorsNoneno data

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 typeSystem Sharedno data
Maximum RAM amountSystem Sharedno data
Memory bus widthSystem Sharedno data
Memory clock speedSystem Sharedno data
Shared memory--

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 ConnectorsPortable Device Dependentno data

API compatibility

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

DirectX12 Ultimate (12_2)12_1
Shader Model6.7no data
OpenGL4.6no data
OpenCL2.0no data
Vulkan1.3-

Pros & cons summary


Recency 3 January 2023 9 November 2023

Steam Deck 8CU has an age advantage of 10 months.

We couldn't decide between Radeon 660M and Radeon Steam Deck 8CU. We've got no test results to judge.

Be aware that Radeon 660M is a desktop card while Radeon Steam Deck 8CU 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 Radeon 660M
Radeon 660M
AMD Radeon Steam Deck 8CU
Radeon Steam Deck 8CU

Comparisons with similar GPUs

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Community ratings

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3.6 305 votes

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5 2 votes

Rate Radeon Steam Deck 8CU on a scale of 1 to 5:

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Questions & comments

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