Maxwell GPU Surface Book (940M, GDDR5) and Steam Deck GPU - video card comparison
Maxwell GPU Surface Book (940M, GDDR5)
Steam Deck GPU
Architecture
Maxwell (2014−2018)
RDNA 2.0 (2020−2022)
GPU code name
Surface Book
Van Gogh
Market segment
Laptop
Desktop
Release date
October 2015
February 2022
Supplementary power connectors
-
None
Boost clock speed
993 MHz
1600 MHz
Core clock speed
954 MHz
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
-
2,400 million
Pipelines / CUDA cores
384
512
Power consumption (TDP)
-
15 Watt
Texture fill rate
-
51.20
Memory type
GDDR5
LPDDR5
Maximum RAM amount
1 GB
16 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5012 MHz
5.5 GB/s
Memory bandwidth
-
88 GB/s
Shared memory
-
-
Display Connectors
-
1x USB Type-C
DirectX
DirectX 12 (FL 11_0), Shader 5.0
12 (12_1)
CUDA
+
-
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.5
Vulkan
-
1.2
Optimus
+
-