GeForce GTX 680M and GeForce GT 555M - video card comparison
Passmark - benchmark score GeForce GTX 680M vs GeForce GT 555M
GeForce GTX 680M
3312
GeForce GT 555M
674
GeForce GTX 680M
GeForce GT 555M
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
N13E-GTX
N12E-GE-B
Market segment
Laptop
Laptop
Release date
June 2012
January 2011
Bus support
PCI Express 3.0
PCI Express 2.0
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
-
SLI options
+
+
Boost clock speed
758 MHz
753 MHz
Core clock speed
720 MHz
Up to 753 MHz
CUDA cores
1344
Up to 144
Floating-point performance
2,038 gflops
388.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
1,170 million
Pipelines / CUDA cores
1344
144
Power consumption (TDP)
100 Watt
35 Watt
Texture fill rate
80.6 billion/sec
Up to 16.2 billion/sec
Memory type
GDDR5
DDR3\DDR5
Maximum RAM amount
4 GB
3 GB
Memory bus width
256 Bit
Up to 192 bit/128 Bit
Memory clock speed
1800 MHz
Up to 1569 MHz
Memory bandwidth
115.2 GB/s
Up to 50.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
-
+
3D Gaming
-
+
Optimus
+
+