The RTX 3090 has 20% more memory and 3.3x the bandwidth, and is cheaper right now.
At a glance
Memory
20% more on RTX 3090
- RTX 3090
- 24 GB
- RTX 4000 SFF Ada
- 20 GB
Memory bandwidth
3.3x higher on RTX 3090
- RTX 3090
- 936 GB/s
- RTX 4000 SFF Ada
- 280 GB/s
Cheapest on-demand
76% cheaper on RTX 3090
- RTX 3090
- $0.10 /GPU/hr
- RTX 4000 SFF Ada
- $0.42 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | RTX 3090 | RTX 4000 SFF Ada | Difference |
|---|---|---|---|
| On-demand | $0.25 /GPU/hr from $0.10 | -- /GPU/hr from $0.42 | |
| Reserved | -- /GPU/hr from $0.06 (1 mo) | No reserved listings | |
| Spot | -- /GPU/hr from $0.09 | No spot listings |
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 reserved and spot on the RTX 3090 and on-demand on the RTX 4000 SFF Ada: 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
RTX 3090 vs RTX 4000 SFF Ada price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | RTX 3090 | RTX 4000 SFF Ada | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 24 GB GDDR6X | 20 GB GDDR6 | 20% more on RTX 3090 |
| Bandwidth | 936 GB/s | 280 GB/s | 3.3x higher on RTX 3090 |
| Bus width | 384-bit | 160-bit | 2.4x wider on RTX 3090 |
| Compute · dense | |||
| FP8 | Not supported | 153.4 TFLOPS | RTX 4000 SFF Ada only |
| FP16 / BF16 | 71.2 TFLOPS | 76.7 TFLOPS | 8% higher on RTX 4000 SFF Ada |
| INT8 | 284.7 TOPS | ||
| FP32 | 35.6 TFLOPS | 19.2 TFLOPS | 85% higher on RTX 3090 |
| Platform | |||
| Interconnect | NVLink 112 GB/s | PCIe only | NVLink on RTX 3090 only |
| Board power | 350 W | 70 W | 5x higher on RTX 3090 |
| Released | Q3 2020 | Q2 2023 | 2 years newer on RTX 4000 SFF Ada |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: RTX 3090 datasheet and RTX 4000 SFF Ada datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.
| Provider | RTX 3090 | RTX 4000 SFF Ada |
|---|---|---|
Runpod
USA
|
$0.22 /GPU/hr On-demand | $0.18 /GPU/hr On-demand |
HyperAI
Hong Kong
|
$0.10 /GPU/hr On-demand | -- |
Vast.ai
USA
|
$0.12 /GPU/hr On-demand | -- |
GPU.ai
UAE
|
$0.15 /GPU/hr On-demand | -- |
Lium
Distributed
|
$0.16 /GPU/hr On-demand | -- |
Salad
Distributed
|
$0.17 /GPU/hr On-demand | -- |
Theta EdgeCloud
Distributed
|
$0.30 /GPU/hr On-demand | -- |
EmpirioLabs AI
USA
|
$0.45 /GPU/hr On-demand | -- |
Hetzner
Germany
|
-- | $0.42 /GPU/hr On-demand |
Koyeb
France
|
-- | $0.50 /GPU/hr On-demand |
10 providers list the RTX 3090 and 3 the RTX 4000 SFF Ada. Every listing is on the RTX 3090 page and the RTX 4000 SFF Ada page.
Similar GPUs
Other comparisons in the same class.
-
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 $0.33 /GPU/hr Compare
-
Nvidia RTX 3090 Ti
24 GB GDDR6X · PCIe only
From $0.19 /GPU/hr Compare
-
Nvidia L4
24 GB GDDR6 · data center card
From $0.27 /GPU/hr Compare
Our data for Nvidia RTX 3090 was last updated on Sept. 14, 2026, and for Nvidia RTX 4000 SFF Ada on Sept. 14, 2026.