H100 vs MI325X
H100 starts at $1.99/GPU-hour on-demand; MI325X starts at $3.80/GPU-hour on-demand. Compare the exact variants, memory and published specifications below. Peak compute figures do not establish application speed.
H100
MI325X
Spec sheet
| H100 | MI325X | |
|---|---|---|
| Spec variant | H100 SXM | MI325X |
| Architecture | Hopper | CDNA 3 |
| VRAM (spec variant) | 80 GB | 256 GB |
| FP16 TFLOPS (dense) | 989 | 1307 |
| Memory bandwidth | 3350 GB/s | 6000 GB/s |
| TDP | 700 W | 1000 W |
| Interconnect | NVLink 900GB/s | Infinity Fabric |
| Launched | 2022 | 2024 |
What they cost to rent (2026-10-02)
| H100 | MI325X | |
|---|---|---|
| Cheapest on-demand $/hr | $1.99 | $3.80 |
| Cheapest spot/community $/hr | $0.94 | $2.00 |
| Cheapest source | Voltage Park | DigitalOcean |
| Providers offering it | 31 | 2 |
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 MI325X?
H100 is cheaper: the H100 rents from $1.99 per GPU-hour and the MI325X from $3.80 on-demand, updated 2026-10-02.
Which has more VRAM, H100 or MI325X?
The largest recorded H100 variant has 94 GB and the largest MI325X variant has 256 GB. Other variants may have less memory. The MI325X has more.
Compare more rental options: the screener · price movers · methodology.