Maxwell GPU Surface Book (940M, GDDR5) and Radeon RX 550X Mobile - video card comparison
Maxwell GPU Surface Book (940M, GDDR5)
Radeon RX 550X Mobile
Architecture
Maxwell (2014−2018)
Polaris (2016−2019)
GPU code name
Surface Book
Polaris 12
Market segment
Laptop
Laptop
Release date
October 2015
January 2019
Interface
-
PCIe 3.0 x8
Boost clock speed
993 MHz
1287 MHz
Core clock speed
954 MHz
1176 MHz
Manufacturing process technology
28 nm
14 nm
Number of transistors
-
2,200 million
Pipelines / CUDA cores
384
640
Power consumption (TDP)
-
50 Watt
Texture fill rate
-
51.48
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
4 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5012 MHz
7000 MHz
Memory bandwidth
-
96 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
DirectX 12 (FL 11_0), Shader 5.0
12 (12_0)
CUDA
+
-
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.4
Vulkan
-
1.2.131
FreeSync
-
+
Optimus
+
-