Radeon 680M and GeForce RTX 4090 Mobile - video card comparison
Radeon 680M
GeForce RTX 4090 Mobile
Architecture
RDNA 2 (2020−2022)
Ada Lovelace
GPU code name
RDNA 2 Rembrandt
GN21-X11
Market segment
Laptop
Laptop
Release date
January 2022
January 2023
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
None
-
Boost clock speed
2400 MHz
2040 MHz
Manufacturing process technology
6 nm
5 nm
Number of transistors
13,100 million
45,900 million
Pipelines / CUDA cores
768
9728
Power consumption (TDP)
45 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
115.2
515.3
Memory type
System Shared
GDDR6
Maximum RAM amount
System Shared
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
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3