Comparison · GPU vs GPU · read 00:32 UTCB300 vs MI325X
Specifications, today's prices from 33 providers, price per unit of memory and compute, and who rents each cheapest. Better values are highlighted; lower is better for prices.
Side by sideSpecs, prices, value
Highlighted cells are the better of the two: more memory and compute, lower prices, lower cost per unit.
| B300 | MI325X | Difference | |
|---|---|---|---|
| Memory & compute | |||
| VRAM | 288 GB | 256 GB | +13% |
| Memory bandwidth | 8.00 TB/s | 6.00 TB/s | +33% |
| FP16 tensor | 2,500 TFLOPS | 1,307 TFLOPS | +91% |
| FP32 | 75 TFLOPS | 163.4 TFLOPS | -54% |
| Power | 1400 W | 1000 W | +40% |
| Prices today | |||
| Cheapest on-demand | $5.57 | $2.25 | +148% |
| Median on-demand | $8.99 | $2.65 | +240% |
| Highest on-demand | $25.80 | $3.80 | +579% |
| Cheapest spot | $4.08 | — | — |
| Cheapest reserved | $3.49 | $1.49 | +134% |
| Current offers (n) | 49 | 7 | +600% |
| Providers with a fresh offer | 29 | 4 | +625% |
| Value | |||
| Per GB of VRAM · hour (cheapest) | $0.019 | $0.009 | +120% |
| Per GB of VRAM · hour (median) | $0.031 | $0.010 | +202% |
| Per PFLOP FP16 · hour (median) | $3.596 | $2.025 | +78% |
| Per TB/s · hour (median) | $1.124 | $0.441 | +155% |
| Trend | |||
| 30-day median change | +5.7% | +1.5% | — |
| 90-day median change | +23.3% | +1.0% | — |
90 days · median on-demand price · rebased to 100How the two have moved
Both medians indexed to 100 ninety days ago, so the slopes compare even though the price levels differ.
Cheapest providers today · on-demand · current offersWho rents each one cheapest
- 1
SeewebTrust 691× $5.57 - 2
UpCloudTrust 751× $5.82 - 3
Deep Infra1× $5.89
- 1
TensorWaveTrust 648× $2.25 - 2
OpenRelay1× $2.25 - 3
Cyfuture AI8× $3.04
Verdict · computed from the numbers aboveChoose one, choose the other
Choose the B300 if…
- your model needs more than 256 GB per GPU: 288 GB against 256 GB.
- you want choice: 29 providers have a fresh offer today against 4.
Choose the MI325X if…
- the hourly price matters most: median $2.65 against $8.99, 71% less.
- you serve LLMs: memory bandwidth per dollar is better ($0.441 per TB/s-hour against $1.124).
Questions about B300 vs MI325X
Which is cheaper to rent, the B300 or the MI325X?
Today the cheapest current on-demand B300 is $5.57 per GPU-hour and the cheapest MI325X is $2.25; medians are $8.99 and $2.65. Cheapest excludes offers marked unavailable and counts one floor per marketplace.
How much memory do the B300 and MI325X have?
288 GB of HBM3 on the B300, 256 GB of HBM3 on the MI325X, at 8.00 and 6.00 TB/s.
Where do these numbers come from?
From 56 current offers read on the providers' own pages and APIs over the last 45 days (reference 00:32 UTC), or in our October 2026 market study for the few providers our collector does not read. Specifications come from manufacturer datasheets. Every price on the GPU pages links to its receipt and shows its read date.