UHD Graphics 620 and GeForce GT 420 OEM - video card comparison
UHD Graphics 620
GeForce GT 420 OEM
Architecture
Gen. 9.5 (2017)
Fermi (2010−2014)
GPU code name
Kaby-Lake-Refresh GT2
GF108
Market segment
Laptop
Desktop
Release date
September 2017
September 2010
Interface
PCIe 3.0 x1
PCIe 2.0 x16
Supplementary power connectors
-
None
Boost clock speed
1150 MHz
-
Core clock speed
300 MHz
700 MHz
Floating-point performance
-
134.4 gflops
Manufacturing process technology
14 nm
40 nm
Number of transistors
189 million
585 million
Pipelines / CUDA cores
24
48
Power consumption (TDP)
15 Watt
50 Watt
Texture fill rate
27.60
2.800
Memory type
LPDDR3/DDR4
DDR3
Maximum RAM amount
32 GB
1 GB
Memory bus width
System Shared
128 Bit
Memory clock speed
System Shared
1800 MHz
Memory bandwidth
-
28.8 GB/s
Shared memory
+
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
12 (12_1)
12 (11_0)
CUDA
-
2.1
OpenCL
2.1
1.1
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.1.103
N/A
Quick Sync
+
-