Radeon 550 and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon 550 vs Radeon RX 6400
Radeon 550
2018
Radeon RX 6400
7778
Radeon 550
Radeon RX 6400
Architecture
GCN 4.0 (2016−2020)
RDNA 2.0 (2020−2022)
GPU code name
Lexa
Navi 24
Market segment
Desktop
Desktop
Release date
April 2017
January 2022
Interface
PCIe 3.0 x8
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
1183 MHz
2321 MHz
Core clock speed
1100 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
53 Watt
Texture fill rate
37.86
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
4 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
7 GB/s
16 GB/s
Memory bandwidth
56 GB/s
128.0 GB/s
Display Connectors
1x DVI, 1x HDMI 2.0b, 1x DisplayPort 1.4a
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
+
+
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.1
2.2
OpenGL
4.6
4.6
Shader Model
6.7
6.6
Vulkan
1.3
1.3