Radeon RX 6400 vs Radeon RX 7950 XT
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 20GB VRAM Radeon RX 7950 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6400 's Advantages
Lower TDP (53W vs 300W)
Radeon RX 7950 XT 's Advantages
Boost Clock has increased by 29% (3000MHz vs 2321MHz)
More VRAM (20GB vs 4GB)
Larger VRAM bandwidth (800.0GB/s vs 128.0GB/s)
4608 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6400
3565
Radeon RX 7950 XT
+1709%
64510
Graphics Card
Jan 2022
Release Date
Unknown
Navi II
Generation
Navi III
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 4.0 x16
Clock Speeds
1923 MHz
Base Clock
2000 MHz
2321 MHz
Boost Clock
3000 MHz
2000 MHz
Memory Clock
2500 MHz
Memory
4GB
Memory Size
20GB
GDDR6
Memory Type
GDDR6
64bit
Memory Bus
320bit
128.0GB/s
Bandwidth
800.0GB/s
Render Config
12
Compute Units
84
768
Shading Units
5376
48
TMUs
336
32
ROPs
192
12
RT Cores
84
128 KB per Array
L1 Cache
256 KB per Array
1024 KB
L2 Cache
6 MB
16 MB
L3 Cache
80 MB
Theoretical Performance
74.27 GPixel/s
Pixel Rate
576.0 GPixel/s
111.4 GTexel/s
Texture Rate
1008 GTexel/s
7.130 TFLOPS
FP16 (half)
129.0 TFLOPS
3.565 TFLOPS
FP32 (float)
64.51 TFLOPS
222.8 GFLOPS
FP64 (double)
2.016 TFLOPS
Board Design
53W
TDP
300W
250 W
Suggested PSU
700 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
None
Power Connectors
2x 8-pin
Graphics Processor
Navi 24
GPU Name
Navi 31
Navi 24 XL
(215-135000046)
GPU Variant
Navi 31 XT+
RDNA 2.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
6 nm
Process Size
5 nm
5.4 billion
Transistors
57.7 billion
107 mm²
Die Size
529 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.2
OpenCL
2.2
1.3
Vulkan
1.3
6.7
Shader Model
6.7
