GeForce GT 540M and GeForce GT 620 - video card comparison
Passmark - benchmark score GeForce GT 540M vs GeForce GT 620
GeForce GT 540M
493
GeForce GT 620
388
GeForce GT 540M
GeForce GT 620
Architecture
Fermi (2010−2014)
Fermi (2010−2014)
GPU code name
N12P-GS
GF108
Market segment
Laptop
Desktop
Release date
January 2011
May 2012
Bus support
-
PCI Express 2.0
Interface
MXM-A (3.0)
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
672 MHz
700 MHz
CUDA cores
96
96
Floating-point performance
258.05 gflops
268.8 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
585 million
585 million
Pipelines / CUDA cores
96
96
Power consumption (TDP)
35 Watt
49 Watt
Maximum GPU temperature
-
98 °C
Texture fill rate
10.8 billion/sec
11.2 billion/sec
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
900 MHz
1.8 GB/s
Memory bandwidth
28.8 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
Dual Link DVI-I, HDMI, VGA
Multi monitor support
-
+
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 API
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.2
Shader Model
5.1
5.1
Vulkan
N/A
N/A
3D Blu-Ray
+
+
3D Gaming
+
-
Optimus
+
-