Radeon 550X and Radeon RX 6450M - video card comparison
Radeon 550X
Radeon RX 6450M
Architecture
GCN 4.0 (2016−2020)
RDNA 2 (2020−2022)
GPU code name
Lexa
Navi 24
Market segment
Desktop
Laptop
Release date
March 2019
January 2023
Interface
PCIe 3.0 x8
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
1218 MHz
2220 MHz
Core clock speed
1082 MHz
2000 MHz
Manufacturing process technology
14 nm
6 nm
Number of transistors
2,200 million
5,400 million
Pipelines / CUDA cores
512
768
Power consumption (TDP)
50 Watt
25 Watt (25 - 50 Watt TGP)
Texture fill rate
38.98
118.1
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
7000 MHz
18000 MHz
Memory bandwidth
112.0 GB/s
128.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
Portable Device Dependent
HDMI
+
-
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.0
2.2
OpenGL
4.6
4.6
Shader Model
6.4
6.7
Vulkan
1.2.131
1.3