A data center GPU against a consumer card on the Ampere architecture: 80 GB HBM2e against 24 GB GDDR6X, 92% more memory bandwidth on the A100, and NVLink 600 GB/s on the A100 where the RTX 3090 Ti is PCIe only.
At a glance
Updated 7 minutes ago- Memory
- 80 GB
- HBM2e · 40 GB on SXM, PCIe
- Memory bandwidth
- 1.94 TB/s
- 2,039 GB/s on SXM · 1,555 GB/s on SXM, PCIe
- From
- $0.89 /GPU/hr
- 44 providers
- Memory
- 24 GB
- GDDR6X
- Memory bandwidth
- 1.01 TB/s
- From
- $0.28 /GPU/hr
- 2 providers
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | A100 | RTX 3090 Ti | Difference |
|---|---|---|---|
| On-demand | $0.89 | $0.28 | 3.2x more expensive on A100 |
| Spot | $0.68 | $0.10 | 6.8x more expensive on A100 |
| Reserved | $0.66 | No reserved listings | |
| Median | $1.77 | $0.28 | 6.3x more expensive on A100 |
Median: Median across providers, one vote each, so a large catalog does not outweigh a small one.
Price history
A100 vs RTX 3090 Ti price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A100 | RTX 3090 Ti | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 80 GB HBM2e 40 GB on SXM, PCIe | 24 GB GDDR6X | 3.3x more on A100 |
| Bandwidth | 1,935 GB/s 2,039 GB/s on SXM 1,555 GB/s on SXM, PCIe | 1,008 GB/s | 1.9x higher on A100 |
| Bus width | 5,120-bit | 384-bit | 13x wider on A100 |
| Compute · dense | |||
| FP16 / BF16 | 312 TFLOPS | 80 TFLOPS | 3.9x higher on A100 |
| INT8 | 624 TOPS | 320 TOPS | 1.9x higher on A100 |
| FP32 | 19.5 TFLOPS | 40 TFLOPS | 2.1x higher on RTX 3090 Ti |
| FP64 | 9.7 TFLOPS | Not supported | A100 only |
| Platform | |||
| Interconnect | NVLink 600 GB/s | PCIe only | NVLink on A100 only |
| Board power | 300 W | 450 W | 1.5x higher on RTX 3090 Ti |
| Released | Q2 2020 | Q1 2022 | 2 years newer on RTX 3090 Ti |
| Precision | |||
| Supported formats | FP16BF16TF32FP32FP64INT4INT8 | FP16BF16TF32FP32INT4INT8 | |
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 3090 Ti datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | A100 /GPU/hr | RTX 3090 Ti /GPU/hr |
|---|---|---|
GPU.ai
|
On-Demand $0.89 | -- |
Vast.ai
|
On-Demand $0.95 | -- |
Thunder Compute
|
On-Demand $1.09 | -- |
Lium
|
On-Demand $1.23 | -- |
Massed Compute
|
On-Demand $1.35 | -- |
Packet·ai
|
On-Demand $1.43 | -- |
Spheron
|
On-Demand $1.43 | -- |
Oblivus
|
On-Demand $1.47 | -- |
Salad
|
-- | On-Demand $0.28 |
Runpod
|
-- | On-Demand $0.27 |
44 providers list the A100 and 2 the RTX 3090 Ti. Every listing is on the A100 page and the RTX 3090 Ti page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia A100 was last updated on Sept. 7, 2026, and for Nvidia RTX 3090 Ti on Sept. 7, 2026.