The A100 has 2.5x the memory and 8% more bandwidth. The RTX 5090 is newer and typically cheaper.
At a glance
Memory
2.5x more on A100
- A100
- 80 GB
- RTX 5090
- 32 GB
Memory bandwidth
8% higher on A100
- A100
- 1.94 TB/s
- RTX 5090
- 1.79 TB/s
Cheapest on-demand
19% cheaper on RTX 5090
- A100
- $0.43 /GPU/hr
- RTX 5090
- $0.35 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A100 | RTX 5090 | Difference |
|---|---|---|---|
| On-demand | $1.88 /GPU/hr from $0.43 | $0.72 /GPU/hr from $0.35 | 62% cheaper on RTX 5090 |
| Reserved | $1.43 /GPU/hr from $0.66 (24 mo) | $0.61 /GPU/hr from $0.21 (1 mo) | 57% cheaper on RTX 5090 |
| Spot | $0.96 /GPU/hr from $0.23 | $0.53 /GPU/hr from $0.25 | 44% cheaper on 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. Medians are across providers, one vote each, so a large catalog does not outweigh a small one. Verify before provisioning. More on how we price.
Price history
A100 vs RTX 5090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A100 | RTX 5090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 80 GB HBM2e 40 GB on SXM, PCIe | 32 GB GDDR7 | 2.5x more on A100 |
| Bandwidth | 1,935 GB/s 2,039 GB/s on SXM 1,555 GB/s on SXM, PCIe | 1,792 GB/s | 8% higher on A100 |
| Bus width | 5,120-bit | 512-bit | 10x wider on A100 |
| Compute · dense | |||
| FP4 | Not supported | 1,676 TFLOPS | RTX 5090 only |
| FP8 | Not supported | 419 TFLOPS | RTX 5090 only |
| FP16 / BF16 | 312 TFLOPS | 209.5 TFLOPS | 49% higher on A100 |
| INT8 | 624 TOPS | 838 TOPS | 34% higher on RTX 5090 |
| FP32 | 19.5 TFLOPS | 104.8 TFLOPS | 5.4x higher on RTX 5090 |
| FP64 | 9.7 TFLOPS | Not supported | A100 only |
| Platform | |||
| Interconnect | NVLink 600 GB/s | PCIe only | NVLink on A100 only |
| Board power | 300 W | 575 W | 92% higher on RTX 5090 |
| Released | Q2 2020 | Q1 2025 | 5 years newer on RTX 5090 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32FP64INT4INT8 | FP4FP8FP16BF16TF32FP32INT8 | |
Figures are for each model's headline configuration. Where a form factor carries a different number, it is named under the figure.
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A100 datasheet and RTX 5090 datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.
| Provider | A100 | RTX 5090 |
|---|---|---|
Vast.ai
USA
|
$0.43 /GPU/hr On-demand SXM | $0.47 /GPU/hr On-demand |
GPU.ai
UAE
|
$0.60 /GPU/hr On-demand | $0.50 /GPU/hr On-demand |
Lium
Distributed
|
$1.17 /GPU/hr On-demand SXM | $0.58 /GPU/hr On-demand |
Jarvislabs
India
|
$0.89 /GPU/hr On-demand | -- |
Thunder Compute
USA
|
$1.09 /GPU/hr On-demand | -- |
Runpod
USA
|
$1.19 /GPU/hr On-demand PCIe | -- |
Massed Compute
USA
|
$1.35 /GPU/hr On-demand | -- |
Packet·ai
USA
|
$1.43 /GPU/hr On-demand | -- |
HyperAI
Hong Kong
|
-- | $0.35 /GPU/hr On-demand |
Salad
Distributed
|
-- | $0.50 /GPU/hr On-demand |
Nova Cloud
Canada
|
-- | $0.66 /GPU/hr On-demand PCIe |
Runcrate
USA
|
-- | $0.77 /GPU/hr On-demand PCIe |
Sesterce
France
|
-- | $0.77 /GPU/hr On-demand |
46 providers list the A100 and 21 the RTX 5090. Every listing is on the A100 page and the RTX 5090 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 73% more bandwidth than the A100
From $1.30 /GPU/hr Compare -
Nvidia RTX 4090
24 GB GDDR6X · 48% less bandwidth than the A100
From $0.33 /GPU/hr Compare
-
AMD MI300X
192 GB HBM3 · 2.7x the bandwidth of the A100
From $2.59 /GPU/hr Compare -
Nvidia RTX PRO 6000
96 GB GDDR7 · workstation card
From $0.66 /GPU/hr Compare
Our data for Nvidia A100 was last updated on Sept. 14, 2026, and for Nvidia RTX 5090 on Sept. 14, 2026.