Specifications Compared
| Spec | H100 | RTX 4000 Ada |
|---|---|---|
| TDP | 700W | 130W |
| VRAM | 80-94 GB | 20 GB |
| CUDA Cores | 16,896 | 6,144 |
| FP8 (dense) | 1,979 TFLOPS | Not published |
| Memory Type | HBM3 | GDDR6 |
| Architecture | Hopper | Ada Lovelace |
| FP16 (dense) | 989 TFLOPS | Not published |
| Form Factors | SXM5, PCIe, NVL | PCIe |
| INT8 (dense) | 1,979 TOPS | Not published |
| Interconnect | NVLink, PCIe 5.0, InfiniBand | PCIe 4.0 |
| Tensor Cores | 528 | 192 |
| FP32 Performance | 67 TFLOPS | 26.7 TFLOPS |
| FP64 Performance | 34 TFLOPS | Not published |
| Memory Bandwidth | 3,350 GB/s | 360 GB/s |
| FP8 (with sparsity) | 3,958 TFLOPS | 427.6 TFLOPS |
| FP16 (with sparsity) | 1,979 TFLOPS | Not published |
| INT8 (with sparsity) | 3,958 TOPS | Not published |
Performance Analysis
The FP16 dense performance of 989 TFLOPS on the H100 exceeds any published figure for the RTX 4000 Ada and supports larger batch sizes during training. FP32 performance stands at 67 TFLOPS dense on the H100 compared to 26.7 TFLOPS on the RTX 4000 Ada which narrows the gap for certain inference tasks. Memory bandwidth of 3350 GB/s on the H100 allows bigger batches than the 360 GB/s bandwidth on the RTX 4000 Ada. FP8 dense performance reaches 1979 TFLOPS on the H100 while the RTX 4000 Ada lists 427.6 TFLOPS only with sparsity. FP16 with sparsity on the H100 reaches 1979 TFLOPS against no published FP16 figure for the RTX 4000 Ada.
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 | 2 | $2.59 | $5.18 | Deploy |
| Hyperstack | CANADA-1 | 8 | $2.60 | $20.80 | Deploy |
| Massed Compute | us-central-3 | 1 | $2.73 | — | Deploy |
| Ori | dallas-2 | 8 | $2.90 | $23.20 | Deploy |
| Scaleway | Paris, France (PAR2) | 2 | $3.72 | $7.45 | Deploy |
9 providers in stock, 20 offers (cheapest per provider shown). All H100 offers, price history and alerts
RTX 4000 Ada
RTX 4000 Ada is not offered on-demand by any provider we track right now. See the RTX 4000 Ada 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 HBM3 memory and 3350 GB/s bandwidth such as training models that exceed 20 GB capacity. Its 989 TFLOPS FP16 dense rating and 700W TDP enable sustained high throughput in data center environments with NVLink interconnect.
When to Choose the RTX 4000 Ada
The RTX 4000 Ada fits tasks limited to 20 GB GDDR6 memory and 130W TDP where PCIe 4.0 connectivity suffices. Its 26.7 TFLOPS FP32 rating handles professional rendering and smaller inference jobs without the power draw of 700W.
Use Cases
The H100 supplies 989 TFLOPS FP16 dense and 80 to 94 GB HBM3 memory that exceed the RTX 4000 Ada limits.
FP8 dense performance of 1979 TFLOPS on the H100 supports higher throughput than the 427.6 TFLOPS with sparsity on the RTX 4000 Ada.
The 3350 GB/s bandwidth and 67 TFLOPS FP32 on the H100 accommodate larger fine tuning batches than the RTX 4000 Ada.
The RTX 4000 Ada at 130W TDP and 20 GB GDDR6 memory meets typical Stable Diffusion needs without excess power.
FP32 performance of 67 TFLOPS dense on the H100 and NVLink interconnect provide advantages over the RTX 4000 Ada.
Frequently Asked Questions
What is the memory difference between H100 and RTX 4000 Ada?▾
The H100 contains 80 to 94 GB HBM3 VRAM while the RTX 4000 Ada holds 20 GB GDDR6 VRAM.
How does FP32 performance compare on these GPUs?▾
The H100 reaches 67 TFLOPS FP32 and the RTX 4000 Ada reaches 26.7 TFLOPS FP32.
Which GPU has higher memory bandwidth?▾
The H100 provides 3350 GB/s memory bandwidth compared to 360 GB/s on the RTX 4000 Ada.
What TDP values apply to the H100 and RTX 4000 Ada?▾
The H100 lists a 700W TDP and the RTX 4000 Ada lists a 130W TDP.
Does the H100 support NVLink?▾
The H100 supports NVLink interconnect while the RTX 4000 Ada uses only PCIe 4.0.
What FP8 figures are published for each GPU?▾
The H100 lists 1979 TFLOPS FP8 dense and 3958 TFLOPS with sparsity while the RTX 4000 Ada lists 427.6 TFLOPS FP8 with sparsity.
Which is cheaper to rent, the H100 or the RTX 4000 Ada?▾
Cloud rental prices for both the H100 and RTX 4000 Ada 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 4000 Ada?▾
The H100 has 80 to 94 GB of HBM3 memory. The RTX 4000 Ada has 20 GB of GDDR6 memory.
Can I find H100 and RTX 4000 Ada 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 4000 Ada?▾
The H100 uses the Hopper architecture (2022) while the RTX 4000 Ada uses Ada Lovelace (2023). The H100 has 80-94 GB of HBM3 at 3,350 GB/s; the RTX 4000 Ada has 20 GB of GDDR6 at 360 GB/s, so the H100 has 9.3x the memory bandwidth of the RTX 4000 Ada.
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 4000 Ada. 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 4000 ADAEvery 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.