GeForce GTX 680MX and GeForce 940MX - video card comparison
Passmark - benchmark score GeForce GTX 680MX vs GeForce 940MX
GeForce GTX 680MX
4266
GeForce 940MX
1561
GeForce GTX 680MX
GeForce 940MX
Architecture
Kepler (2012−2018)
Maxwell (2014−2018)
GPU code name
-
N16S-GTR-B/S
Market segment
Laptop
Laptop
Release date
October 2012
March 2016
Bus support
PCI Express 3.0
PCI Express 3.0
Interface
-
PCIe 3.0 x8
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
-
1242 MHz
Core clock speed
720 MHz
1122 MHz
CUDA cores
1536
-
Floating-point performance
-
762.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3540 Million
1,870 million
Pipelines / CUDA cores
1536
384
Power consumption (TDP)
122 Watt
23 Watt
Texture fill rate
92.2 billion/sec
23.83
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
2500 MHz
4000 MHz
Memory bandwidth
160 GB/s
40.1 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
12 API
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.2
OpenGL
4.5
4.5
Shader Model
-
5.1
Vulkan
-
1.1
3D Vision
+
-
GameWorks
-
+
GPU Boost
-
2.0
Optimus
+
+