Radeon RX 480 and Radeon R9 M390 - video card comparison
Radeon RX 480
Radeon R9 M390
Architecture
Polaris (2016−2019)
GCN (2011−2017)
GPU code name
Polaris 10 Ellesmere
Pitcairn
Market segment
Desktop
Laptop
Release date
June 2016
June 2015
Bus support
n/a
PCIe 3.0
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 6-pin
-
Bridgeless CrossFire
1
-
Boost clock speed
1266 MHz
-
Compute units
36
-
Core clock speed
1120 MHz
-
Floating-point performance
5,834 gflops
-
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
5000 Million
Pipelines / CUDA cores
2304
1024
Power consumption (TDP)
150 Watt
-
Texture fill rate
182.3
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
8000 MHz
-
Memory bandwidth
224 GB/s
-
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
-
Eyefinity
1
1
HDMI
2.0
-
DisplayPort support
1.4HDR
-
DirectX
DirectX® 12
DirectX® 12
Mantle
n/a
+
OpenCL
2.0
Not Listed
OpenGL
4.5
4.4
Shader Model
6.4
-
Vulkan
+
-
AppAcceleration
n/a
-
CrossFire
1
-
DualGraphics
-
1
Enduro
n/a
-
FreeSync
+
1
FRTC
1
-
HD3D
n/a
+
LiquidVR
1
-
PowerTune
+
+
Switchable graphics
-
1
TressFX
1
-
TrueAudio
n/a
-
UVD
+
-
VCE
+
-
ZeroCore
+
+