Overview

AMD logo AMD MI325X

Highest memory capacity AMD GPU for single-chip model serving.

High Performance Datacenter

Nvidia logo Nvidia B300

Highest VRAM in the Blackwell lineup for training the largest foundation models.

High Performance Datacenter

Memory per GPU

1.1x more on B300
AMD logo MI325X
256 GB HBM3E
Nvidia logo B300
288 GB HBM3e

Memory bandwidth

1.3x higher on B300
AMD logo MI325X
6,000 GB/s
Nvidia logo B300
8,000 GB/s

GPU interconnect

2x higher on B300
AMD logo MI325X
Infinity Fabric 896 GB/s
Nvidia logo B300
NVLink 1,800 GB/s

Precision support

AMD logo MI325X
FP8 FP16 BF16 TF32 FP32 FP64 INT8
Nvidia logo B300
FP4 FP6 FP8 FP16 BF16 TF32 FP32 FP64 INT8

Highlighted formats are supported by only one of the two.

Architecture

AMD logo MI325X
CDNA3
Nvidia logo B300
Blackwell Ultra

Released

AMD logo MI325X
Q4 2024
Nvidia logo B300
Q1 2025

Price comparison

Cheapest on-demand

3x higher on B300
AMD logo MI325X
$2.25 / GPU / hr
Nvidia logo B300
$6.66 / GPU / hr

Typical rate

2.5x higher on B300
AMD logo MI325X
$3.07 / GPU / hr
Nvidia logo B300
$7.68 / GPU / hr

Median across providers, one vote each, so a large catalog does not outweigh a small one.

Spot floor

AMD logo MI325X
No spot listings
Nvidia logo B300
$4.30 / GPU / hr

Full price range

AMD logo MI325X
$1.48 - $3.80 / GPU / hr
Nvidia logo B300
$3.98 - $17.80 / GPU / hr

Lowest to highest listing per GPU-hour, across on-demand, spot, reserved and custom.

Providers listing it

20 more on B300
AMD logo MI325X
5
Nvidia logo B300
25

Price, last 90 days

AMD logo MI325X
Not enough history yet
Nvidia logo B300
−1%

Change in the market-wide median, which moves when providers reprice and when cheaper or more expensive listings enter the market. Withheld where too few providers price the card, its history is too short, or its weekly print swings too hard to read as a trend.

Heads up: We do our best to keep these specs & prices accurate. However, cloud costs may fluctuate based on region, usage, and other factors not listed here. These are estimates based on common setups and are for informational purposes only. Always verify current rates & exact specs with the provider before provisioning.

Offers and availability

How this list works

Order

Each provider appears once per GPU. We pick the one configuration that speaks for that provider, and rank on it in this order:

  1. Availability: in stock, then waitlist, then not reported, then out of stock. A price you can act on outranks a cheaper one you cannot.
  2. Billing type: on-demand first, then reserved, then spot, then quote-only. On-demand leads because it is the only rate you can hold without committing to anything.
  3. Price: the lowest per-GPU hourly rate the provider lists, converted to USD.

The configuration we pick is chosen the same way, availability before billing before price. The rest of that provider's configurations are on the GPU's own page.

Ties sort alphabetically. Reserved rates are not separated by term length, so a three-year commitment can sit above a one-month one: the label beneath each price says which you are looking at. Providers who publish no rate are listed last within their group.

Transparency and funding

  • Ads and sponsors: Paid placements sit at the top of the list and are always labeled as sponsored content. Sponsorship never influences the organic ranking itself.
  • Affiliates: Affiliate links are marked. We may earn a commission if you click them, but commissions never affect the order.
  • Prices: Shown in USD, converted at daily reference rates where a provider publishes in another currency. A month means 720 hours. How we estimate costs.

Similar GPUs

Other comparisons in the same class:

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Our data for AMD MI325X was last updated on Aug. 21, 2026, and for Nvidia B300 on Aug. 21, 2026.