NVIDIA B300 vs NVIDIA Quadro RTX 4000 Max Q
GPU · Specs Compare
Graphics Card
Release Date
Sep 2025
May 2019
Generation
Server Blackwell
Quadro Mobile
Type
Desktop
Professional
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1665 MHz
780 MHz
Boost Clock
2032 MHz
1380 MHz
Memory Clock
2000 MHz
1625 MHz
Memory
Memory Size
144GB
8GB
Memory Type
HBM3e
GDDR6
Memory Bus
4096bit
256bit
Bandwidth
4.10TB/s
416.0GB/s
Render Config
SM Count
148
40
Shading Units
18944
2560
TMUs
592
160
ROPs
24
64
Tensor Cores
592
320
L1 Cache
256 KB (per SM)
64 KB (per SM)
L2 Cache
50 MB
4 MB
RT Cores
—
40
Theoretical Performance
Pixel Rate
48.77 GPixel/s
88.32 GPixel/s
Texture Rate
1202.9 GTexel/s
220.8 GTexel/s
FP16 (half)
1231.8 TFLOPS
14.13 TFLOPS
FP32 (float)
76.99 TFLOPS
7.066 TFLOPS
FP64 (double)
1202.9 GFLOPS
220.8 GFLOPS
Graphics Processor
GPU Name
GB110
TU104
Architecture
Blackwell Ultra
Turing
Foundry
TSMC
TSMC
Process Size
5 nm
12 nm
Transistors
104 billion
13.6 billion
Die Size
Unknown
545 mm²
Board Design
TDP
1400W
80W
Suggested PSU
1800 W
—
Outputs
No outputs
No outputs
Power Connectors
—
None
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
CUDA
10.3
7.5
Shader Model
N/A
6.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.