HD Graphics 620 and Radeon 540 Mobile - video card comparison
HD Graphics 620
Radeon 540 Mobile
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
GCN 4.0 (2016−2020)
GPU code name
Kaby-Lake GT2
Lexa
Market segment
Laptop
Laptop
Release date
August 2016
March 2019
Interface
PCIe 3.0 x1
PCIe 3.0 x8
Boost clock speed
1050 MHz
1124 MHz
Core clock speed
300 MHz
-
Floating-point performance
403.2 gflops
-
Manufacturing process technology
14 nm
14 nm
Number of transistors
189 million
2,200 million
Pipelines / CUDA cores
24
512
Power consumption (TDP)
15 Watt
50 Watt
Texture fill rate
25.20
35.97
Memory type
DDR3L/LPDDR3/LPDDR4
GDDR5
Maximum RAM amount
32 GB
2 GB
Memory bus width
64/128 Bit
64 Bit
Memory clock speed
System Shared
6000 MHz
Memory bandwidth
-
48 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (12_0)
OpenCL
2.1
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.4
Vulkan
+
1.2.131
Quick Sync
+
-