A100 vs RTX 5090
The A100 features 80GB HBM2e with MIG support for datacenter, while the RTX 5090 offers 32GB GDDR7 for gaming. Choose A100 for datacenter workloads, RTX 5090 for consumer use.
Overview
Nvidia A100
The Nvidia A100 is a data center GPU on the Ampere architecture, released Q2 2020, with 80 GB HBM2e and 1,935 GB/s memory bandwidth on the PCIe variant.
Nvidia RTX 5090
The Nvidia RTX 5090 is a consumer GPU on the Blackwell architecture, released Q1 2025, with 32 GB GDDR7 and 1,792 GB/s memory bandwidth.
Memory per GPU
2.5x more on A100
A100
RTX 5090
Memory bandwidth
1.1x higher on A100
A100
RTX 5090
GPU interconnect
A100
RTX 5090
Peak performance (FP16)
1.5x higher on A100
A100
RTX 5090
Vendor peak figures, dense and per GPU. Not measured throughput.
FP16 per watt
2.9x higher on A100
A100
RTX 5090
Board power
1.9x higher on RTX 5090
A100
RTX 5090
Precision support
A100
RTX 5090
Highlighted formats are supported by only one of the two.
Architecture
A100
RTX 5090
Released
5 years newer on RTX 5090
A100
RTX 5090
Figures are for each model's headline configuration. Where a form factor carries a different number, it is named under the figure.
Source: A100 datasheet and RTX 5090 datasheet.
Price comparison
Cheapest on-demand
2.1x higher on A100
A100
RTX 5090
Typical rate
2.8x higher on A100
A100
RTX 5090
Median across providers, one vote each, so a large catalog does not outweigh a small one.
Spot floor
Within 5%
A100
RTX 5090
Providers listing it
24 more on A100
A100
RTX 5090
Heads up: A provider's own page may quote a different figure, for example on tax, region or a promotion. A monthly-only plan shows a derived hourly rate. Verify before provisioning. More on how we price.
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:
- Availability: in stock, then waitlist, then not reported, then out of stock. A price you can act on outranks a cheaper one you cannot.
- 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.
- 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.
A100 Offers
21 of 42 providers report available stock.
RTX 5090 Offers
8 of 18 providers report available stock.
Similar GPUs
Other comparisons in the same class:
Our data for Nvidia A100 was last updated on Aug. 31, 2026, and for Nvidia RTX 5090 on Aug. 31, 2026.