Radeon RX 580 and Radeon R9 M390 Mac Edition - video card comparison
Radeon RX 580
Radeon R9 M390 Mac Edition
Architecture
Polaris (2016−2019)
GCN 1.0 (2012−2020)
GPU code name
Polaris 20
Pitcairn
Market segment
Desktop
Desktop
Release date
April 2017
May 2015
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1340 MHz
-
Core clock speed
1257 MHz
958 MHz
Floating-point performance
6,175 gflops
-
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
2,800 million
Pipelines / CUDA cores
2304
1024
Power consumption (TDP)
185 Watt
80 Watt
Texture fill rate
193.0
61.31
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
8000 MHz
5.5 GB/s
Memory bandwidth
256.0 GB/s
174.7 GB/s
Display Connectors
1x HDMI, 3x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.2