HD Graphics 620 and Radeon RX 640 - video card comparison
Passmark - benchmark score HD Graphics 620 vs Radeon RX 640
HD Graphics 620
963
Radeon RX 640
2020
HD Graphics 620
Radeon RX 640
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
Polaris (2016−2019)
GPU code name
Kaby-Lake GT2
Polaris 12
Market segment
Laptop
Laptop
Release date
August 2016
August 2019
Interface
PCIe 3.0 x1
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
1050 MHz
1218 MHz
Core clock speed
300 MHz
1218 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
640
Power consumption (TDP)
15 Watt
50 Watt
Texture fill rate
25.20
38.98
Memory type
DDR3L/LPDDR3/LPDDR4
GDDR5
Maximum RAM amount
32 GB
4 GB
Memory bus width
64/128 Bit
64 Bit
Memory clock speed
System Shared
6000 MHz
Memory bandwidth
-
112.0 GB/s
Shared memory
+
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
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
FreeSync
-
+
Quick Sync
+
-