The H100 is newer, with 3.3x the memory and 3.6x the bandwidth. The RTX 3090 is typically cheaper.
At a glance
Memory
3.3x more on H100
- H100
- 80 GB
- RTX 3090
- 24 GB
Memory bandwidth
3.6x higher on H100
- H100
- 3,350 GB/s
- RTX 3090
- 936 GB/s
Cheapest on-demand
94% cheaper on RTX 3090
- H100
- $1.71 /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 | H100 | RTX 3090 | Difference |
|---|---|---|---|
| On-demand | $3.50 /GPU/hr from $1.71 | $0.25 /GPU/hr from $0.10 | 93% cheaper on RTX 3090 |
| Reserved | $3.14 /GPU/hr from $1.53 (1 mo) | -- /GPU/hr from $0.06 (1 mo) | |
| Spot | $1.95 /GPU/hr from $0.69 | -- /GPU/hr from $0.05 |
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: 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
H100 vs RTX 3090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | H100 | RTX 3090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 80 GB HBM3 94 GB on NVL | 24 GB GDDR6X | 3.3x more on H100 |
| Bandwidth | 3,350 GB/s 2,000 GB/s on PCIe 3,938 GB/s on NVL | 936 GB/s | 3.6x higher on H100 |
| Bus width | 5,120-bit | 384-bit | 13x wider on H100 |
| Compute · dense | |||
| FP8 | 1,979 TFLOPS | Not supported | H100 only |
| FP16 / BF16 | 989.5 TFLOPS | 71.2 TFLOPS | 14x higher on H100 |
| INT8 | 1,979 TOPS | 284.7 TOPS | 7x higher on H100 |
| FP32 | 67 TFLOPS | 35.6 TFLOPS | 88% higher on H100 |
| FP64 | 34 TFLOPS | Not supported | H100 only |
| Platform | |||
| Interconnect | NVLink 900 GB/s NVLink 600 GB/s on PCIe, NVL | NVLink 112 GB/s | 8x higher on H100 |
| Board power | 700 W | 350 W | 2x higher on H100 |
| Released | Q3 2022 | Q3 2020 | 2 years newer on H100 |
| Precision | |||
| Supported formats | FP8FP16BF16TF32FP32FP64INT8 | FP16BF16TF32FP32INT4INT8 | |
Figures are for each model's headline configuration. Where a form factor carries a different number, it is named under the figure.
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: H100 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 | H100 | RTX 3090 |
|---|---|---|
Vast.ai
USA
|
$1.71 /GPU/hr On-demand SXM | $0.14 /GPU/hr On-demand |
HyperAI
Hong Kong
|
$1.80 /GPU/hr On-demand | $0.10 /GPU/hr On-demand |
Lium
Distributed
|
$1.75 /GPU/hr On-demand SXM | $0.16 /GPU/hr On-demand |
GPU.ai
UAE
|
$2.48 /GPU/hr On-demand PCIe | $0.15 /GPU/hr On-demand |
Spheron
Singapore
|
$2.64 /GPU/hr On-demand PCIe | -- |
Massed Compute
USA
|
$2.73 /GPU/hr On-demand | -- |
Sesterce
France
|
$2.75 /GPU/hr On-demand | -- |
Runpod
USA
|
$3.19 /GPU/hr On-demand NVL | -- |
Theta EdgeCloud
Distributed
|
-- | $0.27 /GPU/hr On-demand |
EmpirioLabs AI
USA
|
-- | $0.35 /GPU/hr On-demand |
Salad
Distributed
|
-- | $0.17 /GPU/hr On-demand |
SwissGPU
Switzerland
|
-- | $0.30 /GPU/hr On-demand |
57 providers list the H100 and 10 the RTX 3090. Every listing is on the H100 page and the RTX 3090 page.
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia H100 was last updated on Sept. 14, 2026, and for Nvidia RTX 3090 on Sept. 14, 2026.