UHD Graphics 620 and HD Graphics 400 - video card comparison
UHD Graphics 620
HD Graphics 400
Architecture
Gen. 9.5 (2017)
Generation 8.0 (2014−2015)
GPU code name
Kaby-Lake-Refresh GT2
Braswell GT1
Market segment
Laptop
Desktop
Release date
September 2017
April 2015
Interface
PCIe 3.0 x1
PCIe 3.0 x1
Boost clock speed
1150 MHz
640 MHz
Core clock speed
300 MHz
320 MHz
Floating-point performance
-
134.4 gflops
Manufacturing process technology
14 nm
14 nm
Number of transistors
189 million
189 million
Pipelines / CUDA cores
24
96
Power consumption (TDP)
15 Watt
6 Watt
Texture fill rate
27.60
7.680
Memory type
LPDDR3/DDR4
DDR3L
Maximum RAM amount
32 GB
8 GB
Memory bus width
System Shared
System Shared
Memory clock speed
System Shared
System Shared
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (11_1)
OpenCL
2.1
2.0
OpenGL
4.6
4.3
Shader Model
6.4
5.1
Vulkan
1.1.103
1.1.80
Quick Sync
+
-