Both have 24 GB of memory. The RTX 3090 has 2.2x the bandwidth and is cheaper right now.
At a glance
Memory
Identical
- RTX 3090
- 24 GB
- RTX PRO 4000 SFF
- 24 GB
Memory bandwidth
2.2x higher on RTX 3090
- RTX 3090
- 936 GB/s
- RTX PRO 4000 SFF
- 432 GB/s
Cheapest on-demand
74% cheaper on RTX 3090
- RTX 3090
- $0.10 /GPU/hr
- RTX PRO 4000 SFF
- $0.38 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | RTX 3090 | RTX PRO 4000 SFF | Difference |
|---|---|---|---|
| On-demand | $0.20 /GPU/hr from $0.10 | -- /GPU/hr from $0.38 | |
| Reserved | -- /GPU/hr from $0.06 (1 mo) | No reserved listings | |
| Spot | $0.23 /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 on the RTX 3090 and on-demand on the RTX PRO 4000 SFF: 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 PRO 4000 SFF price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | RTX 3090 | RTX PRO 4000 SFF | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 24 GB GDDR6X | 24 GB GDDR7 | Identical |
| Bandwidth | 936 GB/s | 432 GB/s | 2.2x higher on RTX 3090 |
| Bus width | 384-bit | 192-bit | 2x wider on RTX 3090 |
| Compute · dense | |||
| FP4 | Not supported | 385 TFLOPS | RTX PRO 4000 SFF only |
| FP8 | Not supported | 192.5 TFLOPS | RTX PRO 4000 SFF only |
| FP16 / BF16 | 71.2 TFLOPS | 96.3 TFLOPS | 35% higher on RTX PRO 4000 SFF |
| INT8 | 284.7 TOPS | 192.5 TOPS | 48% higher on RTX 3090 |
| FP32 | 35.6 TFLOPS | 24 TFLOPS | 48% 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 | Q3 2025 | 5 years newer on RTX PRO 4000 SFF |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP4FP8FP16BF16TF32FP32INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: RTX 3090 datasheet and RTX PRO 4000 SFF datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.
| Provider | RTX 3090 | RTX PRO 4000 SFF |
|---|---|---|
HyperAI
Hong Kong
|
$0.10 /GPU/hr On-demand | -- |
Theta EdgeCloud
Distributed
|
$0.16 /GPU/hr On-demand | -- |
GPU.ai
UAE
|
$0.16 /GPU/hr On-demand | -- |
Lium
Distributed
|
$0.17 /GPU/hr On-demand | -- |
OpenRelay
USA
|
$0.18 /GPU/hr On-demand | -- |
Salad
Distributed
|
$0.20 /GPU/hr On-demand | -- |
EmpirioLabs AI
USA
|
$0.50 /GPU/hr Spot | -- |
SwissGPU
Switzerland
|
$0.43 /GPU/hr On-demand | -- |
Hetzner
Germany
|
-- | $0.38 /GPU/hr On-demand |
9 providers list the RTX 3090 and 1 the RTX PRO 4000 SFF. Every listing is on the RTX 3090 page and the RTX PRO 4000 SFF page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia RTX 5090
32 GB GDDR7 · 91% more bandwidth than the RTX 3090
On-demand from $0.35 /GPU/hr -
-
-
Nvidia RTX PRO 4000
24 GB GDDR7 · 56% more bandwidth than the RTX PRO 4000 SFF
On-demand from $0.27 /GPU/hr
Our data for Nvidia RTX 3090 was last updated on Sept. 14, 2026, and for Nvidia RTX PRO 4000 SFF on Nov. 9, 2026.