Radeon 680M and Radeon RX 6450M - video card comparison
Radeon 680M
Radeon RX 6450M
Architecture
RDNA 2 (2020−2022)
RDNA 2 (2020−2022)
GPU code name
RDNA 2 Rembrandt
Navi 24
Market segment
Laptop
Laptop
Release date
January 2022
January 2023
Interface
PCIe 4.0 x8
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
2400 MHz
2220 MHz
Core clock speed
-
2000 MHz
Manufacturing process technology
6 nm
6 nm
Number of transistors
13,100 million
5,400 million
Pipelines / CUDA cores
768
768
Power consumption (TDP)
45 Watt
25 Watt (25 - 50 Watt TGP)
Texture fill rate
115.2
118.1
Memory type
System Shared
GDDR6
Maximum RAM amount
System Shared
4 GB
Memory bus width
System Shared
64 Bit
Memory clock speed
System Shared
18000 MHz
Memory bandwidth
-
128.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenCL
2.0
2.2
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3