NVIDIA H100 PCIevsNVIDIA GB300
Comprehensive comparison for AI, machine learning, and high-performance computing workloads.
NVIDIA H100 PCIe
Hopper Architecture
NVIDIA GB300
Blackwell Architecture
Detailed Specifications
| Specification | NVIDIA H100 PCIe | NVIDIA GB300 |
|---|---|---|
| Architecture | Hopper | Blackwell |
| Release Year | 2022 | 2025 |
| VRAM | 80 GB | 256 GB+68.8% |
| Memory Type | HBM3 | HBM3e |
| Memory Bandwidth | 2000 GB/s | 10000 GB/s+80% |
| FP32 Performance | 51 TFLOPS | 120 TFLOPS+57.5% |
| FP16 Performance | 102 TFLOPS | 240 TFLOPS+57.5% |
| INT8 Performance | 2040 TOPS | 4800 TOPS+57.5% |
| Tensor Cores | 14592 | 20480 |
| CUDA Cores | 14592 | N/A |
| TDP | 350W | 1200W |
| Form Factor | PCIe | SXM |
| NVLink Support | No | Yes |
| Avg. Price/Hour | $1.4 | $4.25+67.1% |
Performance Breakdown
Compute Performance
Single-precision floating-point performance for general compute workloads
NVIDIA GB300 is 57.5% faster
AI Training Performance
Half-precision performance optimized for deep learning training
NVIDIA GB300 is 57.5% faster
AI Inference Performance
Integer performance for efficient model inference and deployment
NVIDIA GB300 is 57.5% faster
Memory Bandwidth
Data transfer speed between GPU and memory
NVIDIA GB300 is 80% faster
NVIDIA GB300
NVIDIA GB300
NVIDIA H100 PCIe
NVIDIA H100 PCIe
Ideal Workloads
NVIDIA H100 PCIe
NVIDIA GB300
Cost Analysis
Hourly Rate
Daily Cost
Monthly Cost
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Frequently Asked Questions
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