H100 vs MI300X: Cloud Pricing & Availability (2026)
Live, side-by-side comparison of the H100 and MI300X across the cloud providers GPU Finder tracks — on-demand and spot price floors, how many providers carry each, and 30-day availability reliability. Prices refresh daily, availability hourly.
Right now: the H100 is the cheaper rental — from $0.67/hr on demand, about 72% below the MI300X ($2.39/hr).
| Metric | H100 | MI300X |
|---|---|---|
| Cheapest on-demand (per GPU-hour) | $0.67/hron-demand | $2.39/hron-demand |
| Cheapest spot / interruptible (per GPU-hour) | $0.25/hrspot / interruptible | — |
| GPU memory | 80 GB | 192 GB |
| Cloud providers | 23 | 2 |
| Configs tracked | 304 | 6 |
| 30-day reliability | 5/14 held ≥80% | 0/2 held ≥80% |
When to pick which
- Pick the H100 to minimise hourly cost — its on-demand floor ($0.67/hr) is the lower of the two right now.
- Pick the MI300X for larger models or bigger batch sizes — its 192 GB of VRAM fits more without sharding across GPUs.
- The H100 is listed by more providers (23), so it's usually easier to find in stock.
- Over the last 30 days the H100 held ≥80% availability at a larger share of providers — the steadier pick if you need capacity on demand.
FAQ
- Is the H100 or MI300X cheaper to rent in the cloud?
- Across the providers GPU Finder tracks, the H100 starts at $0.67/hr and the MI300X at $2.39/hr on demand. The H100 is currently cheaper, with an on-demand floor of $0.67/hr — about 72% below the MI300X. Prices refresh daily and availability hourly, so check the live tables before you commit.
- Which has more cloud providers, the H100 or MI300X?
- The H100 is offered by 23 providers and the MI300X by 2 providers in our catalog. More providers usually means more regions and an easier time finding capacity in stock.
- How much GPU memory do the H100 and MI300X have?
- The H100 carries 80 GB of VRAM and the MI300X 192 GB. VRAM is the main constraint on the model size and batch size you can run on a single GPU.
- Which is more reliably available, the H100 or MI300X?
- Over the last 30 days, 5/14 held ≥80% of scored providers kept the H100 in stock, versus 0/2 held ≥80% for the MI300X. GPU Finder polls provider stock hourly and scores reliability from that history.