NVIDIA RTX PRO 4000 Blackwell SFF vs NVIDIA GB10
GPU · Specs Compare
Graphics Card
Release Date
Aug 2025
Oct 2025
Generation
Blackwell PRO W
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
577 MHz
1665 MHz
Boost Clock
1432 MHz
2418 MHz
Memory Clock
1125 MHz
1067 MHz
Memory
Memory Size
24GB
128GB
Memory Type
GDDR7
LPDDR5X
Memory Bus
192bit
256bit
Bandwidth
432.0GB/s
273.2GB/s
Render Config
SM Count
70
48
Shading Units
8960
6144
TMUs
280
384
ROPs
96
48
Tensor Cores
280
384
RT Cores
70
48
L1 Cache
128 KB (per SM)
256 KB (per SM)
L2 Cache
48 MB
50 MB
Theoretical Performance
Pixel Rate
137.5 GPixel/s
116.1 GPixel/s
Texture Rate
401.0 GTexel/s
928.5 GTexel/s
FP16 (half)
25.66 TFLOPS
29.71 TFLOPS
FP32 (float)
25.66 TFLOPS
29.71 TFLOPS
FP64 (double)
401.0 GFLOPS
464.3 GFLOPS
Graphics Processor
GPU Name
GB203
GB20B
Architecture
Blackwell 2.0
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
3 nm
Transistors
45.6 billion
Unknown
Die Size
378 mm²
Unknown
Board Design
TDP
70W
140W
Suggested PSU
250 W
300 W
Outputs
4x mini-DisplayPort 2.1b
1x HDMI
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.4
N/A
CUDA
12.0
12.1
Shader Model
6.8
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.