HD Graphics 620 and Radeon RX 6400 - video card comparison
Passmark - benchmark score HD Graphics 620 vs Radeon RX 6400
HD Graphics 620
963
Radeon RX 6400
7778
HD Graphics 620
Radeon RX 6400
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
RDNA 2.0 (2020−2022)
GPU code name
Kaby-Lake GT2
Navi 24
Market segment
Laptop
Desktop
Release date
August 2016
January 2022
Interface
PCIe 3.0 x1
PCIe 4.0 x4
Supplementary power connectors
-
None
Boost clock speed
1050 MHz
2321 MHz
Core clock speed
300 MHz
-
Floating-point performance
403.2 gflops
-
Manufacturing process technology
14 nm
6 nm
Number of transistors
189 million
5,400 million
Pipelines / CUDA cores
24
768
Power consumption (TDP)
15 Watt
53 Watt
Texture fill rate
25.20
111.4
Memory type
DDR3L/LPDDR3/LPDDR4
GDDR6
Maximum RAM amount
32 GB
4 GB
Memory bus width
64/128 Bit
64 Bit
Memory clock speed
System Shared
16 GB/s
Memory bandwidth
-
128.0 GB/s
Shared memory
+
-
Display Connectors
No outputs
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenCL
2.1
2.2
OpenGL
4.6
4.6
Shader Model
6.4
6.6
Vulkan
+
1.3
Quick Sync
+
-