Radeon R9 M390X and GeForce GTX 680MX - video card comparison
Passmark - benchmark score Radeon R9 M390X vs GeForce GTX 680MX
Radeon R9 M390X
3705
GeForce GTX 680MX
4266
Radeon R9 M390X
GeForce GTX 680MX
Architecture
GCN 3 (2014−2016)
Kepler (2012−2018)
GPU code name
Amethyst (XT) / Tonga
-
Market segment
Laptop
Laptop
Release date
June 2015
October 2012
Bus support
PCIe 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
-
Supplementary power connectors
None
-
SLI options
-
+
Core clock speed
723 MHz
720 MHz
CUDA cores
-
1536
Floating-point performance
2,961 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
3540 Million
Pipelines / CUDA cores
2048
1536
Power consumption (TDP)
100 Watt
122 Watt
Texture fill rate
92.54
92.2 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
2500 MHz
Memory bandwidth
160.0 GB/s
160 GB/s
Shared memory
-
-
Display Connectors
No outputs
-
Eyefinity
1
-
DirectX
DirectX® 12
12 API
CUDA
-
+
Mantle
+
-
OpenCL
Not Listed
1.1
OpenGL
4.4
4.5
Shader Model
6.3
-
Vulkan
+
-
3D Vision
-
+
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
Optimus
-
+
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-