Radeon R9 M390 and Radeon RX 580 2048SP - video card comparison
Radeon R9 M390
Radeon RX 580 2048SP
Architecture
GCN (2011−2017)
GCN 4.0 (2016−2020)
GPU code name
Pitcairn
Polaris 20
Market segment
Laptop
Desktop
Release date
June 2015
October 2018
Bus support
PCIe 3.0
-
Interface
-
PCIe 3.0 x16
Supplementary power connectors
-
1x 8-pin
Boost clock speed
-
1284 MHz
Core clock speed
-
1168 MHz
Manufacturing process technology
28 nm
14 nm
Number of transistors
5000 Million
5,700 million
Pipelines / CUDA cores
1024
2048
Power consumption (TDP)
-
150 Watt
Texture fill rate
-
164.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
7000 MHz
Memory bandwidth
-
224.0 GB/s
Shared memory
-
-
Display Connectors
-
1x DVI, 1x HDMI, 3x DisplayPort
Eyefinity
1
-
HDMI
-
+
DirectX
DirectX® 12
12 (12_0)
Mantle
+
-
OpenCL
Not Listed
2.0
OpenGL
4.4
4.6
Shader Model
-
6.4
Vulkan
-
1.2.131
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-