Radeon RX 6400 and Radeon RX 7950 XT - video card comparison
Radeon RX 6400
Radeon RX 7950 XT
Architecture
RDNA 2.0 (2020−2022)
RDNA 3.0 (2022)
GPU code name
Navi 24
Navi 31
Market segment
Desktop
Desktop
Release date
January 2022
-
Interface
PCIe 4.0 x4
PCIe 4.0 x16
Supplementary power connectors
None
2x 8-pin
Boost clock speed
2321 MHz
3000 MHz
Manufacturing process technology
6 nm
5 nm
Number of transistors
5,400 million
57,700 million
Pipelines / CUDA cores
768
5376
Power consumption (TDP)
53 Watt
300 Watt
Texture fill rate
111.4
1,008
Memory type
GDDR6
GDDR6
Maximum RAM amount
4 GB
20 GB
Memory bus width
64 Bit
320 Bit
Memory clock speed
16 GB/s
20 GB/s
Memory bandwidth
128.0 GB/s
800.0 GB/s
Display Connectors
1x HDMI 2.1, 1x DisplayPort 1.4a
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.2
2.2
OpenGL
4.6
4.6
Shader Model
6.6
6.7
Vulkan
1.3
1.3