AMD Radeon RX 6400 vs AMD Radeon RX 7400
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Aug 2025
Generation
Navi II
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x4
PCIe 4.0 x8
Clock Speeds
Base Clock
1923 MHz
1452 MHz
Boost Clock
2321 MHz
2300 MHz
Memory Clock
2000 MHz
2250 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR6
GDDR6
Memory Bus
64bit
128bit
Bandwidth
128.0GB/s
288.0GB/s
Render Config
Compute Units
12
28
Shading Units
768
1792
TMUs
48
112
ROPs
32
64
RT Cores
12
28
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
1024 KB
2 MB
L3 Cache
16 MB
64 MB
Theoretical Performance
Pixel Rate
74.27 GPixel/s
147.2 GPixel/s
Texture Rate
111.4 GTexel/s
257.6 GTexel/s
FP16 (half)
7.130 TFLOPS
32.97 TFLOPS
FP32 (float)
3.565 TFLOPS
16.49 TFLOPS
FP64 (double)
222.8 GFLOPS
515.2 GFLOPS
Graphics Processor
GPU Name
Navi 24
Navi 33
GPU Variant
Navi 24 XL(215-135000046)
Navi 33
Architecture
RDNA 2.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
6 nm
6 nm
Transistors
5.4 billion
13.3 billion
Die Size
107 mm²
204 mm²
Board Design
TDP
53W
43W
Suggested PSU
250 W
200 W
Outputs
1x HDMI 2.11x DisplayPort 1.4a
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
None
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
2.2
Vulkan
1.3
1.3
Shader Model
6.7
6.8