Both have 24 GB of memory and about the same bandwidth. The RTX 3090 Ti is typically cheaper.
At a glance
Memory
Identical
- RTX 3090 Ti
- 24 GB
- RTX 4090
- 24 GB
Memory bandwidth
Within 5%
- RTX 3090 Ti
- 1.01 TB/s
- RTX 4090
- 1.01 TB/s
Cheapest on-demand
42% cheaper on RTX 3090 Ti
- RTX 3090 Ti
- $0.19 /GPU/hr
- RTX 4090
- $0.33 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | RTX 3090 Ti | RTX 4090 | Difference |
|---|---|---|---|
| On-demand | $0.27 /GPU/hr from $0.19 | $0.45 /GPU/hr from $0.33 | 40% cheaper on RTX 3090 Ti |
| Reserved | No reserved listings | $0.52 /GPU/hr from $0.29 (1 mo) | |
| Spot | -- /GPU/hr from $0.10 | $0.33 /GPU/hr from $0.16 |
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 RTX 3090 Ti: 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 Ti vs RTX 4090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | RTX 3090 Ti | RTX 4090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 24 GB GDDR6X | 24 GB GDDR6X | Identical |
| Bandwidth | 1,008 GB/s | 1,010 GB/s | Within 5% |
| Bus width | 384-bit | 384-bit | Identical |
| Compute · dense | |||
| FP8 | Not supported | 330.3 TFLOPS | RTX 4090 only |
| FP16 / BF16 | 80 TFLOPS | 165.2 TFLOPS | 2.1x higher on RTX 4090 |
| INT8 | 320 TOPS | 660.6 TOPS | 2.1x higher on RTX 4090 |
| FP32 | 40 TFLOPS | 82.6 TFLOPS | 2.1x higher on RTX 4090 |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 450 W | 450 W | Identical |
| Released | Q1 2022 | Q4 2022 | 6 months newer on RTX 4090 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: RTX 3090 Ti datasheet and RTX 4090 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 Ti | RTX 4090 |
|---|---|---|
|
|
$0.19 /GPU/hr On-demand | $0.33 /GPU/hr On-demand |
|
|
$0.27 /GPU/hr On-demand | $0.40 /GPU/hr On-demand |
|
|
$0.27 /GPU/hr On-demand | $0.34 /GPU/hr On-demand |
|
|
-- | $0.35 /GPU/hr On-demand |
|
|
-- | $0.38 /GPU/hr On-demand |
|
|
-- | $0.39 /GPU/hr On-demand |
|
|
-- | $0.41 /GPU/hr On-demand |
|
|
-- | $0.44 /GPU/hr On-demand |
3 providers list the RTX 3090 Ti and 20 the RTX 4090. Every listing is on the RTX 3090 Ti page and the RTX 4090 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia RTX 5090
32 GB GDDR7 · 78% more bandwidth than the RTX 3090 Ti
From $0.35 /GPU/hr Compare -
Nvidia RTX 3090
24 GB GDDR6X · NVLink 112 GB/s
From $0.10 /GPU/hr Compare -
Nvidia L40S
48 GB GDDR6 · 14% less bandwidth than the RTX 4090
From $0.55 /GPU/hr Compare
Our data for Nvidia RTX 3090 Ti was last updated on Sept. 14, 2026, and for Nvidia RTX 4090 on Sept. 14, 2026.