Radeon RX 580 and HD Graphics 620 - video card comparison
Passmark - benchmark score Radeon RX 580 vs HD Graphics 620
Radeon RX 580
9140
HD Graphics 620
963
Radeon RX 580
HD Graphics 620
Architecture
Polaris (2016−2019)
Gen. 9.5 Kaby Lake (2015−2017)
GPU code name
Polaris 20
Kaby-Lake GT2
Market segment
Desktop
Laptop
Release date
April 2017
August 2016
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
1x 8-pin
-
Boost clock speed
1340 MHz
1050 MHz
Core clock speed
1257 MHz
300 MHz
Floating-point performance
6,175 gflops
403.2 gflops
Manufacturing process technology
14 nm
14 nm
Number of transistors
5,700 million
189 million
Pipelines / CUDA cores
2304
24
Power consumption (TDP)
185 Watt
15 Watt
Texture fill rate
193.0
25.20
Memory type
GDDR5
DDR3L/LPDDR3/LPDDR4
Maximum RAM amount
8 GB
32 GB
Memory bus width
256 Bit
64/128 Bit
Memory clock speed
8000 MHz
System Shared
Memory bandwidth
256.0 GB/s
-
Shared memory
-
+
Display Connectors
1x HDMI, 3x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (12_0)
12 (12_1)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.4
6.4
Vulkan
1.2.131
+
Quick Sync
-
+