NVIDIA B300 vs NVIDIA PG506 242
GPU · Specs Compare
Graphics Card
Release Date
Sep 2025
Apr 2021
Generation
Server Blackwell
Tesla
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1665 MHz
930 MHz
Boost Clock
2032 MHz
1440 MHz
Memory Clock
2000 MHz
1215 MHz
Memory
Memory Size
144GB
24GB
Memory Type
HBM3e
HBM2
Memory Bus
4096bit
3072bit
Bandwidth
4.10TB/s
933.1GB/s
Render Config
SM Count
148
56
Shading Units
18944
3584
TMUs
592
224
ROPs
24
96
Tensor Cores
592
224
L1 Cache
256 KB (per SM)
192 KB (per SM)
L2 Cache
50 MB
24 MB
Theoretical Performance
Pixel Rate
48.77 GPixel/s
138.2 GPixel/s
Texture Rate
1202.9 GTexel/s
322.6 GTexel/s
FP16 (half)
1231.8 TFLOPS
10.32 TFLOPS
FP32 (float)
76.99 TFLOPS
10.32 TFLOPS
FP64 (double)
1202.9 GFLOPS
5.161 TFLOPS
Graphics Processor
GPU Name
GB110
GA100
Architecture
Blackwell Ultra
Ampere
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
104 billion
54.2 billion
Die Size
Unknown
826 mm²
Board Design
TDP
1400W
165W
Suggested PSU
1800 W
450 W
Outputs
No outputs
No outputs
Power Connectors
—
8-pin EPS
Graphics Features
DirectX
N/A
N/A
OpenGL
N/A
N/A
OpenCL
3.0
3.0
Vulkan
N/A
N/A
CUDA
10.3
8.0
Shader Model
N/A
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.