The RTX 3090 has 50% more memory and 31% more bandwidth, and is typically cheaper.
At a glance
Memory
50% more on RTX 3090
- RTX 3090
- 24 GB
- RTX 4080
- 16 GB
Memory bandwidth
31% higher on RTX 3090
- RTX 3090
- 936 GB/s
- RTX 4080
- 717 GB/s
Cheapest on-demand
39% cheaper on RTX 3090
- RTX 3090
- $0.10 /GPU/hr
- RTX 4080
- $0.16 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | RTX 3090 | RTX 4080 | Difference |
|---|---|---|---|
| On-demand | $0.20 /GPU/hr from $0.10 | $0.24 /GPU/hr from $0.16 | 17% cheaper on RTX 3090 |
| Reserved | -- /GPU/hr from $0.06 (1 mo) | -- /GPU/hr from $0.34 (6 mo) | |
| Spot | -- /GPU/hr from $0.08 | -- /GPU/hr from $0.11 |
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 reserved and spot on the RTX 4080: 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 4080 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | RTX 3090 | RTX 4080 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 24 GB GDDR6X | 16 GB GDDR6X | 50% more on RTX 3090 |
| Bandwidth | 936 GB/s | 717 GB/s | 31% higher on RTX 3090 |
| Bus width | 384-bit | 256-bit | 50% wider on RTX 3090 |
| Compute · dense | |||
| FP8 | Not supported | 194.9 TFLOPS | RTX 4080 only |
| FP16 / BF16 | 71.2 TFLOPS | 97.5 TFLOPS | 37% higher on RTX 4080 |
| INT8 | 284.7 TOPS | 389.9 TOPS | 37% higher on RTX 4080 |
| FP32 | 35.6 TFLOPS | 48.7 TFLOPS | 37% higher on RTX 4080 |
| Platform | |||
| Interconnect | NVLink 112 GB/s | PCIe only | NVLink on RTX 3090 only |
| Board power | 350 W | 320 W | 9% higher on RTX 3090 |
| Released | Q3 2020 | Q4 2022 | 2 years newer on RTX 4080 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: RTX 3090 datasheet and RTX 4080 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 4080 |
|---|---|---|
Vast.ai
USA
|
$0.14 /GPU/hr On-demand | $0.16 /GPU/hr On-demand |
GPU.ai
UAE
|
$0.15 /GPU/hr On-demand | $0.21 /GPU/hr On-demand |
Salad
Distributed
|
$0.17 /GPU/hr On-demand | $0.23 /GPU/hr On-demand |
Theta EdgeCloud
Distributed
|
$0.22 /GPU/hr On-demand | $0.33 /GPU/hr On-demand |
Runpod
USA
|
$0.22 /GPU/hr On-demand | $0.27 /GPU/hr On-demand |
SwissGPU
Switzerland
|
$0.30 /GPU/hr On-demand | $0.24 /GPU/hr On-demand |
HyperAI
Hong Kong
|
$0.10 /GPU/hr On-demand | -- |
Lium
Distributed
|
$0.16 /GPU/hr On-demand | -- |
GPUhub
Singapore
|
-- | $0.25 /GPU/hr On-demand |
10 providers list the RTX 3090 and 7 the RTX 4080. Every listing is on the RTX 3090 page and the RTX 4080 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 RTX 5080
16 GB GDDR7 · 34% more bandwidth than the RTX 4080
From $0.22 /GPU/hr Compare
Our data for Nvidia RTX 3090 was last updated on Sept. 14, 2026, and for Nvidia RTX 4080 on Sept. 14, 2026.