Radeon RX 580 and Maxwell GPU Surface Book (940M, GDDR5) - video card comparison
Radeon RX 580
Maxwell GPU Surface Book (940M, GDDR5)
Architecture
Polaris (2016−2019)
Maxwell (2014−2018)
GPU code name
Polaris 20
Surface Book
Market segment
Desktop
Laptop
Release date
April 2017
October 2015
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 8-pin
-
Boost clock speed
1340 MHz
993 MHz
Core clock speed
1257 MHz
954 MHz
Floating-point performance
6,175 gflops
-
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
-
Pipelines / CUDA cores
2304
384
Power consumption (TDP)
185 Watt
-
Texture fill rate
193.0
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
8000 MHz
5012 MHz
Memory bandwidth
256.0 GB/s
-
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
-
HDMI
+
-
DirectX
12 (12_0)
DirectX 12 (FL 11_0), Shader 5.0
CUDA
-
+
OpenCL
2.0
-
OpenGL
4.6
-
Shader Model
6.4
-
Vulkan
1.2.131
-
Optimus
-
+