Overview
Nvidia A40
The Nvidia A40 is a data center GPU on the Ampere architecture, released Q4 2020, with 48 GB GDDR6 and 696 GB/s memory bandwidth.
Nvidia RTX 4080
The Nvidia RTX 4080 is a consumer GPU on the Ada Lovelace architecture, released Q4 2022, with 16 GB GDDR6X and 717 GB/s memory bandwidth.
Memory per GPU
3x more on A40
A40
RTX 4080
Memory bandwidth
Within 5%
A40
RTX 4080
GPU interconnect
A40
RTX 4080
Peak performance (FP16)
1.5x higher on A40
A40
RTX 4080
Vendor peak figures, dense and per GPU. Not measured throughput.
FP16 per watt
1.6x higher on A40
A40
RTX 4080
Board power
1.1x higher on RTX 4080
A40
RTX 4080
Precision support
A40
RTX 4080
Highlighted formats are supported by only one of the two.
Architecture
A40
RTX 4080
Released
2 years newer on RTX 4080
A40
RTX 4080
Source: A40 datasheet and RTX 4080 datasheet.
Price comparison
Cheapest on-demand
2.1x higher on A40
A40
RTX 4080
Typical rate
2x higher on A40
A40
RTX 4080
Median across providers, one vote each, so a large catalog does not outweigh a small one.
Spot floor
A40
RTX 4080
Providers listing it
1 more on A40
A40
RTX 4080
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.
A40 Offers
3 of 8 providers report available stock.
RTX 4080 Offers
5 of 7 providers report available stock.
Similar GPUs
Other comparisons in the same class:
Our data for Nvidia A40 was last updated on Sept. 7, 2026, and for Nvidia RTX 4080 on Sept. 7, 2026.