Radeon RX 6400 and Radeon Instinct MI300X - video card comparison
Radeon RX 6400
Radeon Instinct MI300X
Architecture
RDNA 2.0 (2020−2022)
CDNA 3.0
GPU code name
Navi 24
Aqua Vanjaram
Market segment
Desktop
Desktop
Release date
January 2022
December 2023
Interface
PCIe 4.0 x4
PCIe 5.0 x16
Supplementary power connectors
None
None
Boost clock speed
2321 MHz
2100 MHz
Manufacturing process technology
6 nm
5 nm
Number of transistors
5,400 million
153,000 million
Pipelines / CUDA cores
768
19456
Power consumption (TDP)
53 Watt
750 Watt
Texture fill rate
111.4
2,554
Memory type
GDDR6
HBM3
Maximum RAM amount
4 GB
192 GB
Memory bus width
64 Bit
8192 Bit
Memory clock speed
16 GB/s
5 GB/s
Memory bandwidth
128.0 GB/s
5,171 GB/s
Display Connectors
1x HDMI 2.1, 1x DisplayPort 1.4a
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
N/A
OpenCL
2.2
3.0
OpenGL
4.6
N/A
Shader Model
6.6
N/A
Vulkan
1.3
N/A