NVIDIA RTX PRO 4000 Blackwell SFF vs NVIDIA RTX A5000-8Q
GPU Specs Compare
Graphics Card
Release Date
Aug 2025
Apr 2021
Generation
Blackwell PRO W
Quadro Ampere
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
577 MHz
1170 MHz
Boost Clock
1432 MHz
1695 MHz
Memory Clock
1125 MHz
2000 MHz
Memory
Memory Size
24GB
8GB
Memory Type
GDDR7
GDDR6
Memory Bus
192bit
384bit
Bandwidth
432.0GB/s
768.0GB/s
Render Config
SM Count
70
64
Shading Units
8960
8192
TMUs
280
256
ROPs
96
96
Tensor Cores
280
256
RT Cores
70
64
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
48 MB
6 MB
Theoretical Performance
Pixel Rate
137.5 GPixel/s
162.7 GPixel/s
Texture Rate
401.0 GTexel/s
433.9 GTexel/s
FP16 (half)
25.66 TFLOPS
27.77 TFLOPS
FP32 (float)
25.66 TFLOPS
27.77 TFLOPS
FP64 (double)
401.0 GFLOPS
433.9 GFLOPS
Graphics Processor
GPU Name
GB203
GA102
Architecture
Blackwell 2.0
Ampere
Foundry
TSMC
Samsung
Process Size
5 nm
8 nm
Transistors
45.6 billion
28.3 billion
Die Size
378 mm²
628 mm²
Board Design
TDP
70W
230W
Suggested PSU
250 W
550 W
Outputs
4x mini-DisplayPort 2.1b
4x DisplayPort 1.4a
Power Connectors
None
1x 8-pin
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
6.7