UHD Graphics 620 and Radeon X1800 XT - video card comparison
UHD Graphics 620
Radeon X1800 XT
Architecture
Gen. 9.5 (2017)
R500 (2005−2007)
GPU code name
Kaby-Lake-Refresh GT2
R520
Market segment
Laptop
Desktop
Release date
September 2017
October 2005
Interface
PCIe 3.0 x1
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin
Boost clock speed
1150 MHz
-
Core clock speed
300 MHz
600 MHz
Manufacturing process technology
14 nm
90 nm
Number of transistors
189 million
321 million
Pipelines / CUDA cores
24
-
Power consumption (TDP)
15 Watt
113 Watt
Texture fill rate
27.60
9.600
Memory type
LPDDR3/DDR4
GDDR3
Maximum RAM amount
32 GB
512 MB
Memory bus width
System Shared
256 Bit
Memory clock speed
System Shared
1400 MHz
Memory bandwidth
-
44.8 GB/s
Shared memory
+
-
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
12 (12_1)
9.0c (9_3)
OpenCL
2.1
N/A
OpenGL
4.6
2.0
Shader Model
6.4
3.0
Vulkan
1.1.103
N/A
Quick Sync
+
-