On-demand, the B200 rents for $6.84/hr and the MI325X for $3.18/hr — the MI325X is ~115% cheaper per hour, averaged across cloud providers.
| B200 | MI325X | |
|---|---|---|
| On-demand /hr | $6.84 | $3.18 |
| Spot /hr | $3.74 | $2.00 |
| Reserved /hr | $5.89 | $2.03 |
| Per month (on-demand) | $4,993 | $2,321 |
| B200 | MI325X | |
|---|---|---|
| Vendor | NVIDIA | AMD |
| Architecture | Blackwell | CDNA 3 |
| Memory | 192 GB HBM3e | 256 GB HBM3e |
| Memory bandwidth | 8 TB/s | 6 TB/s |
| Launched | 2025 | 2025 |
On-demand, the B200 averages $6.84/hr vs the MI325X at $3.18/hr — the MI325X is about 115% cheaper per hour. Spot rates are $3.74/hr vs $2.00/hr.
B200 costs more per hour but offers 192 GB HBM3e memory and newer architecture — for large-model training the higher hourly rate often yields a lower cost-per-job. For memory-bound inference or budget runs, the MI325X is usually the better value.
At on-demand rates that's about $4,993/mo for the B200 and $2,321/mo for the MI325X (730 hours).
See full pricing & history: B200 price · MI325X price · all GPUs.
Cross-provider averages from public cloud GPU listings. Informational only.