AMD Radeon RX 6400 vs AMD Radeon RX 7950 XT
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Unknown
Generation
Navi II
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x4
PCIe 4.0 x16
Clock Speeds
Base Clock
1923 MHz
2000 MHz
Boost Clock
2321 MHz
3000 MHz
Memory Clock
2000 MHz
2500 MHz
Memory
Memory Size
4GB
20GB
Memory Type
GDDR6
GDDR6
Memory Bus
64bit
320bit
Bandwidth
128.0GB/s
800.0GB/s
Render Config
Compute Units
12
84
Shading Units
768
5376
TMUs
48
336
ROPs
32
192
RT Cores
12
84
L1 Cache
128 KB per Array
256 KB per Array
L2 Cache
1024 KB
6 MB
L3 Cache
16 MB
80 MB
Theoretical Performance
Pixel Rate
74.27 GPixel/s
576.0 GPixel/s
Texture Rate
111.4 GTexel/s
1008 GTexel/s
FP16 (half)
7.130 TFLOPS
129.0 TFLOPS
FP32 (float)
3.565 TFLOPS
64.51 TFLOPS
FP64 (double)
222.8 GFLOPS
2.016 TFLOPS
Graphics Processor
GPU Name
Navi 24
Navi 31
GPU Variant
Navi 24 XL(215-135000046)
Navi 31 XT+
Architecture
RDNA 2.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
6 nm
5 nm
Transistors
5.4 billion
57.7 billion
Die Size
107 mm²
529 mm²
Board Design
TDP
53W
300W
Suggested PSU
250 W
700 W
Outputs
1x HDMI 2.11x DisplayPort 1.4a
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
None
2x 8-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
6.7