UHD Graphics 620 and GeForce RTX 4090 Mobile - video card comparison
UHD Graphics 620
GeForce RTX 4090 Mobile
Architecture
Gen. 9.5 (2017)
Ada Lovelace
GPU code name
Kaby-Lake-Refresh GT2
GN21-X11
Market segment
Laptop
Laptop
Release date
September 2017
January 2023
Interface
PCIe 3.0 x1
PCIe 4.0 x16
Boost clock speed
1150 MHz
2040 MHz
Core clock speed
300 MHz
-
Manufacturing process technology
14 nm
5 nm
Number of transistors
189 million
45,900 million
Pipelines / CUDA cores
24
9728
Power consumption (TDP)
15 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
27.60
515.3
Memory type
LPDDR3/DDR4
GDDR6
Maximum RAM amount
32 GB
16 GB
Memory bus width
System Shared
256 Bit
Memory clock speed
System Shared
20000 MHz
Memory bandwidth
-
576.0 GB/s
Shared memory
+
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (12_1)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
2.1
3.0
OpenGL
4.6
4.6
Shader Model
6.4
6.7
Vulkan
1.1.103
1.3
Quick Sync
+
-