Radeon R9 M390 and Mobility Radeon HD 5870 Crossfire - video card comparison
Radeon R9 M390
Mobility Radeon HD 5870 Crossfire
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Pitcairn
Broadway-XT
Market segment
Laptop
Laptop
Release date
June 2015
January 2010
Bus support
PCIe 3.0
-
Core clock speed
-
700 MHz
Manufacturing process technology
28 nm
40 nm
Number of transistors
5000 Million
-
Pipelines / CUDA cores
1024
1600
Power consumption (TDP)
-
120 Watt
Memory type
GDDR5
DDR3, GDDR3, GDDR5
Maximum RAM amount
2 GB
2x1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
1000 MHz
Shared memory
-
-
Eyefinity
1
-
DirectX
DirectX® 12
11
Mantle
+
-
OpenCL
Not Listed
-
OpenGL
4.4
-
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-