Radeon R9 M390X and GeForce 940MX - video card comparison
Passmark - benchmark score Radeon R9 M390X vs GeForce 940MX
Radeon R9 M390X
3705
GeForce 940MX
1561
Radeon R9 M390X
GeForce 940MX
Architecture
GCN 3 (2014−2016)
Maxwell (2014−2018)
GPU code name
Amethyst (XT) / Tonga
N16S-GTR-B/S
Market segment
Laptop
Laptop
Release date
June 2015
March 2016
Bus support
PCIe 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
-
1242 MHz
Core clock speed
723 MHz
1122 MHz
Floating-point performance
2,961 gflops
762.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
1,870 million
Pipelines / CUDA cores
2048
384
Power consumption (TDP)
100 Watt
23 Watt
Texture fill rate
92.54
23.83
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
-
4000 MHz
Memory bandwidth
160.0 GB/s
40.1 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 12
12 (11_0)
CUDA
-
+
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.5
Shader Model
6.3
5.1
Vulkan
+
1.1
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
GameWorks
-
+
GPU Boost
-
2.0
HD3D
+
-
Optimus
-
+
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-