The RTX 3090 has 50% more memory and 2.1x the bandwidth.
At a glance
Memory
50% more on RTX 3090
- A4000
- 16 GB
- RTX 3090
- 24 GB
Memory bandwidth
2.1x higher on RTX 3090
- A4000
- 448 GB/s
- RTX 3090
- 936 GB/s
Cheapest on-demand
9% cheaper on A4000
- A4000
- $0.09 /GPU/hr
- RTX 3090
- $0.10 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A4000 | RTX 3090 | Difference |
|---|---|---|---|
| On-demand | $0.48 /GPU/hr from $0.09 | $0.25 /GPU/hr from $0.10 | 49% cheaper on RTX 3090 |
| Reserved | $0.18 /GPU/hr from $0.06 (3 mo) | -- /GPU/hr from $0.06 (1 mo) | |
| Spot | -- /GPU/hr from $0.06 | -- /GPU/hr from $0.08 |
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. No median for spot on the A4000 and reserved and spot on the RTX 3090: we only show one when at least 3 providers list the GPU on that billing type. Verify before provisioning. More on how we price.
Price history
A4000 vs RTX 3090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A4000 | RTX 3090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 16 GB GDDR6 | 24 GB GDDR6X | 50% more on RTX 3090 |
| Bandwidth | 448 GB/s | 936 GB/s | 2.1x higher on RTX 3090 |
| Bus width | 256-bit | 384-bit | 50% wider on RTX 3090 |
| Compute · dense | |||
| FP16 / BF16 | 76.7 TFLOPS | 71.2 TFLOPS | 8% higher on A4000 |
| INT8 | 284.7 TOPS | ||
| FP32 | 19.2 TFLOPS | 35.6 TFLOPS | 85% higher on RTX 3090 |
| Platform | |||
| Interconnect | PCIe only | NVLink 112 GB/s | NVLink on RTX 3090 only |
| Board power | 140 W | 350 W | 2.5x higher on RTX 3090 |
| Released | Q2 2021 | Q3 2020 | 7 months newer on A4000 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A4000 datasheet and RTX 3090 datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.
| Provider | A4000 | RTX 3090 |
|---|---|---|
Vast.ai
USA
|
$0.09 /GPU/hr On-demand | $0.12 /GPU/hr On-demand |
TensorDock
Distributed
|
$0.21 /GPU/hr On-demand | $0.31 /GPU/hr On-demand |
Runcrate
USA
|
$0.88 /GPU/hr On-demand PCIe | -- |
Sesterce
France
|
$0.88 /GPU/hr On-demand | -- |
Hyperstack
UK
|
$0.15 /GPU/hr On-demand | -- |
Paperspace
USA
|
$0.76 /GPU/hr On-demand | -- |
Database Mart
USA
|
$0.17 /GPU/hr Reserved | -- |
Cirrascale
USA
|
$0.28 /GPU/hr Reserved | -- |
HyperAI
Hong Kong
|
-- | $0.10 /GPU/hr On-demand |
Theta EdgeCloud
Distributed
|
-- | $0.14 /GPU/hr On-demand |
Lium
Distributed
|
-- | $0.18 /GPU/hr On-demand |
Runpod
USA
|
-- | $0.50 /GPU/hr On-demand |
Salad
Distributed
|
-- | $0.17 /GPU/hr On-demand |
SwissGPU
Switzerland
|
-- | $0.30 /GPU/hr On-demand |
12 providers list the A4000 and 8 the RTX 3090. Every listing is on the A4000 page and the RTX 3090 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia T4
16 GB GDDR6 · 33% less bandwidth than the A4000
From $0.14 /GPU/hr Compare -
Nvidia RTX 4000 Ada
20 GB GDDR6 · 20% less bandwidth than the A4000
From $0.52 /GPU/hr Compare
-
Nvidia A5000
24 GB GDDR6 · 71% more bandwidth than the A4000
From $0.23 /GPU/hr Compare
-
Nvidia RTX 5090
32 GB GDDR7 · 91% more bandwidth than the RTX 3090
From $0.35 /GPU/hr Compare
-
Nvidia RTX 4090
24 GB GDDR6X · PCIe only
From $0.29 /GPU/hr Compare
Our data for Nvidia A4000 was last updated on Sept. 14, 2026, and for Nvidia RTX 3090 on Sept. 14, 2026.