H100 vs B300
H100 starts at $1.99/GPU-hour on-demand; B300 starts at $4.99/GPU-hour on-demand. Compare the exact variants, memory and published specifications below. Peak compute figures do not establish application speed.
H100
B300
Spec sheet
| H100 | B300 | |
|---|---|---|
| Spec variant | H100 SXM | B300 |
| Architecture | Hopper | Blackwell Ultra |
| VRAM (spec variant) | 80 GB | 288 GB |
| FP16 TFLOPS (dense) | 989 | 2250 |
| Memory bandwidth | 3350 GB/s | 8000 GB/s |
| TDP | 700 W | 1400 W |
| Interconnect | NVLink 900GB/s | NVLink 1800GB/s |
| Launched | 2022 | 2025 |
What they cost to rent (2026-10-02)
| H100 | B300 | |
|---|---|---|
| Cheapest on-demand $/hr | $1.99 | $4.99 |
| Cheapest spot/community $/hr | $0.94 | $4.99 |
| Cheapest source | Voltage Park | Prime Intellect |
| Providers offering it | 31 | 13 |
Lowest recorded on-demand rate per configuration; highlighted = cheaper. Spot/marketplace tiers shown on the individual pages.
FAQ
Is the H100 cheaper to rent than the B300?
H100 is cheaper: the H100 rents from $1.99 per GPU-hour and the B300 from $4.99 on-demand, updated 2026-10-02.
Which has more VRAM, H100 or B300?
The largest recorded H100 variant has 94 GB and the largest B300 variant has 288 GB. Other variants may have less memory. The B300 has more.
Compare more rental options: the screener · price movers · methodology.