Radeon 660M and Steam Deck GPU - video card comparison
Radeon 660M
Steam Deck GPU
Architecture
RDNA 2 (2020−2022)
RDNA 2.0 (2020−2022)
GPU code name
RDNA 2 Rembrandt
Van Gogh
Market segment
Laptop
Desktop
Release date
January 2022
February 2022
Interface
PCIe 4.0 x8
-
Supplementary power connectors
None
None
Boost clock speed
1900 MHz
1600 MHz
Manufacturing process technology
6 nm
7 nm
Number of transistors
13,100 million
2,400 million
Pipelines / CUDA cores
384
512
Power consumption (TDP)
45 Watt
15 Watt
Texture fill rate
45.60
51.20
Memory type
-
LPDDR5
Maximum RAM amount
System Shared
16 GB
Memory bus width
-
128 Bit
Memory clock speed
-
5.5 GB/s
Memory bandwidth
-
88 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x USB Type-C
DirectX
12 (12_1)
12 (12_1)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2
1.2