HD Graphics 620 and Radeon RX 580 XTR - video card comparison
HD Graphics 620
Radeon RX 580 XTR
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
GCN 4.0 (2016−2020)
GPU code name
Kaby-Lake GT2
Polaris 20
Market segment
Laptop
Desktop
Release date
August 2016
April 2017
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Supplementary power connectors
-
1x 8-pin
Boost clock speed
1050 MHz
1340 MHz
Core clock speed
300 MHz
1257 MHz
Floating-point performance
403.2 gflops
6,175 gflops
Manufacturing process technology
14 nm
14 nm
Number of transistors
189 million
5,700 million
Pipelines / CUDA cores
24
2304
Power consumption (TDP)
15 Watt
185 Watt
Texture fill rate
25.20
193.0
Memory type
DDR3L/LPDDR3/LPDDR4
GDDR5
Maximum RAM amount
32 GB
8 GB
Memory bus width
64/128 Bit
256 Bit
Memory clock speed
System Shared
8000 MHz
Memory bandwidth
-
256.0 GB/s
Shared memory
+
-
Display Connectors
No outputs
1x HDMI, 3x DisplayPort
HDMI
-
+
DirectX
12 (12_1)
12.0 (12_0)
OpenCL
2.1
-
OpenGL
4.6
4.5
Shader Model
6.4
-
Vulkan
+
-
Quick Sync
+
-