Radeon RX 6400 and RTX A400 - video card comparison
Radeon RX 6400
RTX A400
Architecture
RDNA 2.0 (2020−2022)
Ampere (2020−2022)
GPU code name
Navi 24
GA107
Market segment
Desktop
Desktop
Release date
January 2022
April 2024
Interface
PCIe 4.0 x4
PCIe 4.0 x8
Supplementary power connectors
None
None
Boost clock speed
2321 MHz
1762 MHz
Manufacturing process technology
6 nm
8 nm
Number of transistors
5,400 million
8,700 million
Pipelines / CUDA cores
768
768
Power consumption (TDP)
53 Watt
50 Watt
Texture fill rate
111.4
42.29
Memory type
GDDR6
GDDR6
Maximum RAM amount
4 GB
4 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
16 GB/s
12 GB/s
Memory bandwidth
128.0 GB/s
96 GB/s
Display Connectors
1x HDMI 2.1, 1x DisplayPort 1.4a
4x mini-DisplayPort 1.4a
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.6
OpenCL
2.2
3.0
OpenGL
4.6
4.6
Shader Model
6.6
6.7
Vulkan
1.3
1.3