Radeon RX 6800M and GeForce RTX 4090 Mobile - video card comparison
Radeon RX 6800M
GeForce RTX 4090 Mobile
Architecture
RDNA 2 (2020−2022)
Ada Lovelace
GPU code name
Navi 22
GN21-X11
Market segment
Laptop
Laptop
Release date
June 2021
January 2023
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
None
-
Boost clock speed
2300 MHz
2040 MHz
Core clock speed
2116 MHz
-
Manufacturing process technology
7 nm
5 nm
Number of transistors
17,200 million
45,900 million
Pipelines / CUDA cores
2560
9728
Power consumption (TDP)
145 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
413.0
515.3
Memory type
GDDR6
GDDR6
Maximum RAM amount
12 GB
16 GB
Memory bus width
192 Bit
256 Bit
Memory clock speed
16000 MHz
20000 MHz
Memory bandwidth
384.0 GB/s
576.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
2.1
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3