GeForce GT 620M and Radeon 540X - video card comparison
Passmark - benchmark score GeForce GT 620M vs Radeon 540X
GeForce GT 620M
447
Radeon 540X
1472
GeForce GT 620M
Radeon 540X
Architecture
Fermi (2010−2014)
GCN 4.0 (2016−2020)
GPU code name
N13P-GLP / N13M-GS
Lexa
Market segment
Laptop
Laptop
Release date
March 2012
August 2019
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
715 MHz
1219 MHz
Core clock speed
Up to 625 MHz
-
CUDA cores
96
-
Floating-point performance
253.4 gflops
-
Manufacturing process technology
40 nm
14 nm
Number of transistors
585 million
2,200 million
Pipelines / CUDA cores
96
512
Power consumption (TDP)
15 Watt
50 Watt
Texture fill rate
Up to 10.0 billion/sec
33.47
Memory type
DDR3
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
Up to 128bit
64 Bit
Memory clock speed
1800 MHz
6000 MHz
Memory bandwidth
Up to 28.8 GB/s
112.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_0)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.4
Vulkan
N/A
1.2.131
3D Blu-Ray
+
-
Optimus
+
-