GeForce GTX 680M and GeForce 940MX - video card comparison
Passmark - benchmark score GeForce GTX 680M vs GeForce 940MX
GeForce GTX 680M
3312
GeForce 940MX
1561
GeForce GTX 680M
GeForce 940MX
Architecture
Kepler (2012−2018)
Maxwell (2014−2018)
GPU code name
N13E-GTX
N16S-GTR-B/S
Market segment
Laptop
Laptop
Release date
June 2012
March 2016
Bus support
PCI Express 3.0
PCI Express 3.0
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
None
SLI options
+
-
Boost clock speed
758 MHz
1242 MHz
Core clock speed
720 MHz
1122 MHz
CUDA cores
1344
-
Floating-point performance
2,038 gflops
762.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
1,870 million
Pipelines / CUDA cores
1344
384
Power consumption (TDP)
100 Watt
23 Watt
Texture fill rate
80.6 billion/sec
23.83
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1800 MHz
4000 MHz
Memory bandwidth
115.2 GB/s
40.1 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.2
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1
GameWorks
-
+
GPU Boost
-
2.0
Optimus
+
+