HD Graphics 620 and GeForce RTX 4080 Mobile - video card comparison
HD Graphics 620
GeForce RTX 4080 Mobile
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
Ada Lovelace
GPU code name
Kaby-Lake GT2
GN21-X9
Market segment
Laptop
Laptop
Release date
August 2016
January 2023
Interface
PCIe 3.0 x1
PCIe 4.0 x16
Boost clock speed
1050 MHz
2280 MHz
Core clock speed
300 MHz
1860 MHz
Floating-point performance
403.2 gflops
-
Manufacturing process technology
14 nm
5 nm
Number of transistors
189 million
35,800 million
Pipelines / CUDA cores
24
7424
Power consumption (TDP)
15 Watt
150 Watt (60 - 150 Watt TGP)
Texture fill rate
25.20
386.3
Memory type
DDR3L/LPDDR3/LPDDR4
GDDR6X
Maximum RAM amount
32 GB
12 GB
Memory bus width
64/128 Bit
192 Bit
Memory clock speed
System Shared
20000 MHz
Memory bandwidth
-
432.0 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
+
1.3
Quick Sync
+
-