Radeon 660M and Radeon Steam Deck 8CU - video card comparison
Radeon 660M
Radeon Steam Deck 8CU
Architecture
RDNA 2 (2020−2022)
RDNA 2 (2020−2022)
GPU code name
RDNA 2 Rembrandt
RDNA 2 Sephiroth
Market segment
Laptop
Laptop
Release date
January 2022
November 2023
Interface
PCIe 4.0 x8
-
Supplementary power connectors
None
-
Boost clock speed
1900 MHz
1900 MHz
Manufacturing process technology
6 nm
6 nm
Number of transistors
13,100 million
-
Pipelines / CUDA cores
384
512
Power consumption (TDP)
45 Watt
-
Texture fill rate
45.60
-
Memory type
System Shared
-
Maximum RAM amount
System Shared
-
Memory bus width
System Shared
-
Memory clock speed
System Shared
-
Shared memory
-
-
Display Connectors
No outputs
-
DirectX
12 (12_1)
12_1
OpenCL
2.0
-
OpenGL
4.6
-
Shader Model
6.5
-
Vulkan
1.2
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