GeForce GT 540M and GeForce GT 555M 3 GB - video card comparison
GeForce GT 540M
GeForce GT 555M 3 GB
Architecture
Fermi (2010−2014)
Fermi (2010−2014)
GPU code name
N12P-GS
GF106
Market segment
Laptop
Desktop
Release date
January 2011
March 2011
Interface
MXM-A (3.0)
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
672 MHz
590 MHz
CUDA cores
96
-
Floating-point performance
258.05 gflops
-
Manufacturing process technology
40 nm
40 nm
Number of transistors
585 million
1,170 million
Pipelines / CUDA cores
96
144
Power consumption (TDP)
35 Watt
35 Watt
Texture fill rate
10.8 billion/sec
14.16
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
3 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
900 MHz
1800 MBps
Memory bandwidth
28.8 GB/s
43.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 API
12 (11_0)
CUDA
+
2.1
OpenCL
1.1
1.1
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
N/A
N/A
3D Blu-Ray
+
-
3D Gaming
+
-
Optimus
+
-