GeForce 940MX and Radeon R7 M340 - video card comparison
Passmark - benchmark score GeForce 940MX vs Radeon R7 M340
GeForce 940MX
1561
Radeon R7 M340
679
GeForce 940MX
Radeon R7 M340
Architecture
Maxwell (2014−2018)
GCN (2011−2017)
GPU code name
N16S-GTR-B/S
Meso Pro DDR3
Market segment
Laptop
Laptop
Release date
March 2016
June 2015
Bus support
PCI Express 3.0
PCIe 3.0
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
1242 MHz
1021 MHz
Compute units
-
6
Core clock speed
1122 MHz
1021 MHz
Floating-point performance
762.6 gflops
549.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
950 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
23 Watt
-
Texture fill rate
23.83
17.16
Memory type
DDR3, GDDR5
DDR3
Maximum RAM amount
4 GB
4 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
4000 MHz
1000 MHz
Memory bandwidth
40.1 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
-
1
DirectX
12 (11_0)
DirectX® 12
CUDA
+
-
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.5
4.4
Shader Model
5.1
5.1
Vulkan
1.1
+
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
GameWorks
+
-
GPU Boost
2.0
-
HD3D
-
+
Optimus
+
-
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+