Radeon R9 M390X and Radeon R9 M485X - video card comparison
Passmark - benchmark score Radeon R9 M390X vs Radeon R9 M485X
Radeon R9 M390X
3705
Radeon R9 M485X
3770
Radeon R9 M390X
Radeon R9 M485X
Architecture
GCN 3 (2014−2016)
GCN 3 (2014−2016)
GPU code name
Amethyst (XT) / Tonga
Amethyst
Market segment
Laptop
Laptop
Release date
June 2015
May 2016
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
None
None
Core clock speed
723 MHz
723 MHz
Floating-point performance
2,961 gflops
2,961 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
5,000 million
Pipelines / CUDA cores
2048
2048
Power consumption (TDP)
100 Watt
250 Watt
Texture fill rate
92.54
92.54
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
8 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
5000 MHz
Memory bandwidth
160.0 GB/s
160.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 12
12 (12_0)
Mantle
+
-
OpenCL
Not Listed
2.0
OpenGL
4.4
4.6
Shader Model
6.3
6.3
Vulkan
+
1.2.131
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-