NVIDIA RTX PRO 4000 Blackwell vs AMD Radeon RX 6400
GPU Specs Compare
Graphics Card
Release Date
Mar 2025
Jan 2022
Generation
Blackwell PRO W
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x4
Clock Speeds
Base Clock
1230 MHz
1923 MHz
Boost Clock
2055 MHz
2321 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
24GB
4GB
Memory Type
GDDR7
GDDR6
Memory Bus
192bit
64bit
Bandwidth
672.0GB/s
128.0GB/s
Render Config
SM Count
70
-
Shading Units
8960
768
TMUs
280
48
ROPs
96
32
Tensor Cores
280
-
RT Cores
70
12
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
48 MB
1024 KB
Compute Units
-
12
L3 Cache
-
16 MB
Theoretical Performance
Pixel Rate
197.3 GPixel/s
74.27 GPixel/s
Texture Rate
575.4 GTexel/s
111.4 GTexel/s
FP16 (half)
36.83 TFLOPS
7.130 TFLOPS
FP32 (float)
36.83 TFLOPS
3.565 TFLOPS
FP64 (double)
575.4 GFLOPS
222.8 GFLOPS
Graphics Processor
GPU Name
GB203
Navi 24
Architecture
Blackwell 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
6 nm
Transistors
45.6 billion
5.4 billion
Die Size
378 mm²
107 mm²
GPU Variant
-
Navi 24 XL(215-135000046)
Board Design
TDP
140W
53W
Suggested PSU
300 W
250 W
Outputs
4x DisplayPort 2.1b
1x HDMI 2.11x DisplayPort 1.4a
Power Connectors
1x 16-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.2
Vulkan
1.4
1.3
CUDA
12.0
-
Shader Model
6.8
6.7