Specifications Compared
| Spec | H100 | RTX 4080 |
|---|---|---|
| TDP | 700W | 320W |
| VRAM | 80-94 GB | 16 GB |
| CUDA Cores | 16,896 | 9,728 |
| FP8 (dense) | 1,979 TFLOPS | 194.9 TFLOPS |
| Memory Type | HBM3 | GDDR6X |
| Architecture | Hopper | Ada Lovelace |
| FP16 (dense) | 989 TFLOPS | 97.5 TFLOPS |
| Form Factors | SXM5, PCIe, NVL | PCIe |
| INT8 (dense) | 1,979 TOPS | 389.9 TOPS |
| Interconnect | NVLink, PCIe 5.0, InfiniBand | PCIe 4.0 |
| Tensor Cores | 528 | 304 |
| FP32 Performance | 67 TFLOPS | 48.7 TFLOPS |
| FP64 Performance | 34 TFLOPS | Not published |
| Memory Bandwidth | 3,350 GB/s | 717 GB/s |
| FP8 (with sparsity) | 3,958 TFLOPS | 389.8 TFLOPS |
| FP16 (with sparsity) | 1,979 TFLOPS | 195 TFLOPS |
| INT8 (with sparsity) | 3,958 TOPS | 779.8 TOPS |
Performance Analysis
FP16 dense throughput on the H100 measures 989 TFLOPS while the RTX 4080 measures 97.5 TFLOPS, producing a ratio of roughly ten to one. The same pattern appears in FP16 with sparsity where the H100 reaches 1979 TFLOPS against 195 TFLOPS. FP32 figures show 67 TFLOPS versus 48.7 TFLOPS. Memory bandwidth of 3350 GB/s on the H100 versus 717 GB/s on the RTX 4080 allows larger batch sizes during both training and inference passes. Higher VRAM capacity of 80 to 94 GB further supports models that cannot fit inside 16 GB. Power draw of 700 W on the H100 versus 320 W on the RTX 4080 trades efficiency for absolute throughput in sustained dense or sparse tensor operations.
Current On-Demand Offers
Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.
H100
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| QuantaCloud | us-midwest-2 | 1 | $2.59 | — | Deploy |
| Hyperstack | CANADA-1 | 8 | $2.60 | $20.80 | Deploy |
| Massed Compute | us-central-3 | 2 | $2.73 | $5.46 | Deploy |
| Ori | dallas-2 | 8 | $2.90 | $23.20 | Deploy |
| Scaleway | Paris, France (PAR2) | 2 | $3.72 | $7.45 | Deploy |
9 providers in stock, 19 offers (cheapest per provider shown). All H100 offers, price history and alerts
RTX 4080
RTX 4080 is not offered on-demand by any provider we track right now. See the RTX 4080 rental page for last-seen listed prices and a price alert.
Notify me when H100 drops below a price
One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $2.59/GPU-hr.
QuantaCloud
Comparing H-series providers? We broker across all of them.
Hopper stock changes by the hour and prices differ by provider. If you need 16+ GPUs reserved or a cluster in the next 90 days, we quote H-series or B300 inventory at partner rates: one quote, 24h turnaround.
When to Choose the H100
The H100 suits workloads that require 80 to 94 GB of memory and 3350 GB/s bandwidth. FP16 dense performance of 989 TFLOPS supports large batch training runs that exceed the limits of 16 GB cards. Multi GPU NVLink interconnects further extend capacity for distributed jobs.
When to Choose the RTX 4080
The RTX 4080 fits inference or fine tuning tasks that remain within 16 GB and can accept 97.5 TFLOPS FP16 dense throughput. Its 320 W TDP reduces power draw relative to the 700 W H100 when multiple units operate in a single node.
Use Cases
The H100 supplies 80 to 94 GB VRAM and 989 TFLOPS FP16 dense that accommodate large parameter counts and batch sizes.
Both GPUs handle inference yet the RTX 4080 operates at 320 W while the H100 supplies 1979 TFLOPS FP16 with sparsity for higher throughput.
The H100 3350 GB/s bandwidth and 80 to 94 GB memory support larger context lengths than the 717 GB/s and 16 GB on the RTX 4080.
The RTX 4080 at 320 W TDP and 97.5 TFLOPS FP16 dense meets typical image generation demands inside 16 GB without excess power.
FP32 performance of 67 TFLOPS combined with 3350 GB/s bandwidth on the H100 accelerates memory bound scientific kernels.
Frequently Asked Questions
What is the FP16 dense performance difference?▾
The H100 reaches 989 TFLOPS FP16 dense and the RTX 4080 reaches 97.5 TFLOPS FP16 dense.
How does memory bandwidth compare?▾
The H100 lists 3350 GB/s bandwidth while the RTX 4080 lists 717 GB/s bandwidth.
What TDP values are specified?▾
The H100 carries a 700 W TDP rating and the RTX 4080 carries a 320 W TDP rating.
How do FP8 dense figures compare?▾
The H100 supplies 1979 TFLOPS FP8 dense and the RTX 4080 supplies 194.9 TFLOPS FP8 dense.
Which is cheaper to rent, the H100 or the RTX 4080?▾
Cloud rental prices for both the H100 and RTX 4080 vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.
How much VRAM does the H100 have compared to the RTX 4080?▾
The H100 has 80 to 94 GB of HBM3 memory. The RTX 4080 has 16 GB of GDDR6X memory.
Can I find H100 and RTX 4080 GPUs available to rent right now?▾
Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.
What is the main difference between the H100 and the RTX 4080?▾
The H100 uses the Hopper architecture (2022) while the RTX 4080 uses Ada Lovelace (2022). The H100 delivers 10.1x the dense FP16 throughput (989 vs 97.5 TFLOPS, both without sparsity) and 4.7x the memory bandwidth of the RTX 4080.
Rent these GPUs
Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.
Related comparisons
How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the H100 and the RTX 4080. Dense and sparse throughput are listed separately.
- Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
- The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
- Read how we collect the data, or report an error on this page.
Next steps
- Rent H100Every current offer by provider, daily price history and a price alert.
- Rent RTX 4080Every current offer by provider, daily price history and a price alert.
- GPU price indexHow on-demand prices for the major GPUs have moved, updated daily.
- All GPUsEvery GPU we track, with current lows and provider counts.