GeForce GT 420 OEM and Radeon 540X - video card comparison
GeForce GT 420 OEM
Radeon 540X
Architecture
Fermi (2010−2014)
GCN 4.0 (2016−2020)
GPU code name
GF108
Lexa
Market segment
Desktop
Laptop
Release date
September 2010
August 2019
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
-
1219 MHz
Core clock speed
700 MHz
-
Floating-point performance
134.4 gflops
-
Manufacturing process technology
40 nm
14 nm
Number of transistors
585 million
2,200 million
Pipelines / CUDA cores
48
512
Power consumption (TDP)
50 Watt
50 Watt
Texture fill rate
2.800
33.47
Memory type
DDR3
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1800 MHz
6000 MHz
Memory bandwidth
28.8 GB/s
112.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (11_0)
12 (12_0)
CUDA
2.1
-
OpenCL
1.1
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
N/A
1.2.131