NVIDIA RTX PRO 4000 Blackwell vs NVIDIA RTX A4000 Mobile
GPU Specs Compare
Graphics Card
Release Date
Mar 2025
Apr 2021
Generation
Blackwell PRO W
Ampere-MW
Type
Desktop
Professional
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1230 MHz
1140 MHz
Boost Clock
2055 MHz
1680 MHz
Memory Clock
1750 MHz
1500 MHz
Memory
Memory Size
24GB
8GB
Memory Type
GDDR7
GDDR6
Memory Bus
192bit
256bit
Bandwidth
672.0GB/s
384.0GB/s
Render Config
SM Count
70
40
Shading Units
8960
5120
TMUs
280
160
ROPs
96
80
Tensor Cores
280
160
RT Cores
70
40
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
48 MB
4 MB
Theoretical Performance
Pixel Rate
197.3 GPixel/s
134.4 GPixel/s
Texture Rate
575.4 GTexel/s
268.8 GTexel/s
FP16 (half)
36.83 TFLOPS
17.20 TFLOPS
FP32 (float)
36.83 TFLOPS
17.20 TFLOPS
FP64 (double)
575.4 GFLOPS
268.8 GFLOPS
Graphics Processor
GPU Name
GB203
GA104
Architecture
Blackwell 2.0
Ampere
Foundry
TSMC
Samsung
Process Size
5 nm
8 nm
Transistors
45.6 billion
17.4 billion
Die Size
378 mm²
392 mm²
Board Design
TDP
140W
115W
Suggested PSU
300 W
-
Outputs
4x DisplayPort 2.1b
Portable Device Dependent
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
3.0
Vulkan
1.4
1.3
CUDA
12.0
8.6
Shader Model
6.8
6.8
📊 Benchmark
Blender
-
2,825