NVIDIA B300 SXM6 AC vs NVIDIA H100 SXM5 94 GB
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Mar 2023
Generation
Server Blackwell
Server Hopper
Type
Desktop
AI GPU
Bus Interface
PCIe 6.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1665 MHz
1350 MHz
Boost Clock
2032 MHz
1980 MHz
Memory Clock
2000 MHz
1313 MHz
Memory
Memory Size
288GB
94GB
Memory Type
HBM3e
HBM3
Memory Bus
8192bit
5120bit
Bandwidth
8.19TB/s
3.36TB/s
Render Config
SM Count
148
132
Shading Units
18944
16896
TMUs
592
528
ROPs
24
24
Tensor Cores
592
528
L1 Cache
256 KB (per SM)
256 KB (per SM)
L2 Cache
126 MB
50 MB
Theoretical Performance
Pixel Rate
48.77 GPixel/s
47.52 GPixel/s
Texture Rate
1202.9 GTexel/s
1045.4 GTexel/s
FP16 (half)
76.99 TFLOPS
267.6 TFLOPS
FP32 (float)
76.99 TFLOPS
66.91 TFLOPS
FP64 (double)
1202.9 GFLOPS
33.45 TFLOPS
Graphics Processor
GPU Name
GB110
GH100
Architecture
Blackwell Ultra
Hopper
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
208 billion
80 billion
Die Size
1628 mm²
814 mm²
Board Design
TDP
1100W
700W
Suggested PSU
1500 W
1100 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
9.0
Shader Model
N/A
N/A