Specifications Compared
| Spec | RTX 3090 | RTX 4070 |
|---|---|---|
| TDP | 350W | 200W |
| VRAM | 24 GB | 12-16 GB |
| CUDA Cores | 10,496 | 5,888 |
| FP8 (dense) | Not published | 116.6 TFLOPS |
| Memory Type | GDDR6X | GDDR6X |
| Architecture | Ampere | Ada Lovelace |
| FP16 (dense) | 71 TFLOPS | 58.3 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 284 TOPS | 233.2 TOPS |
| Interconnect | NVLink, PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 328 | 184 |
| FP32 Performance | 35.6 TFLOPS | 29.1 TFLOPS |
| Memory Bandwidth | 936 GB/s | 504 GB/s |
| FP8 (with sparsity) | Not published | 233.2 TFLOPS |
| FP16 (with sparsity) | 142 TFLOPS | 116.6 TFLOPS |
| INT8 (with sparsity) | 568 TOPS | 466.4 TOPS |
Performance Analysis
Dense FP16 performance stands at 71 TFLOPS on the RTX 3090 against 58.3 TFLOPS on the RTX 4070 while sparse FP16 reaches 142 TFLOPS versus 116.6 TFLOPS. The FP16 to FP32 ratio favors the RTX 3090 at roughly 2 to 1 in dense mode for workloads that benefit from lower precision. Memory bandwidth of 936 GB/s on the RTX 3090 supports larger batch sizes than 504 GB/s on the RTX 4070 during training or inference steps. Dense INT8 performance measures 284 TOPS on the RTX 3090 compared to 233.2 TOPS on the RTX 4070 with sparse figures at 568 TOPS versus 466.4 TOPS.
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.
RTX 3090
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Vast.ai | Finland, FI | 8 | $0.27 | $2.13 | Deploy |
| LeaderGPU | The Netherlands | 8 | $0.29 | $2.29 | Deploy |
2 providers in stock, 11 offers (cheapest per provider shown). All RTX 3090 offers, price history and alerts
RTX 4070
RTX 4070 is not offered on-demand by any provider we track right now. See the RTX 4070 rental page for last-seen listed prices and a price alert.
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One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $0.27/GPU-hr.
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When to Choose the RTX 3090
The RTX 3090 suits scenarios that require 24 GB of VRAM and 936 GB/s bandwidth for handling larger models or datasets. Its 35.6 TFLOPS FP32 and 71 TFLOPS dense FP16 provide advantages in sustained compute tasks despite the 350W TDP.
When to Choose the RTX 4070
The RTX 4070 fits deployments where 200W TDP limits power consumption and the 2023 architecture supports efficiency in 12 GB to 16 GB VRAM setups. Its 58.3 TFLOPS dense FP16 remains competitive for lighter inference loads.
Use Cases
The RTX 3090 supplies 24 GB VRAM and 936 GB/s bandwidth that exceed the RTX 4070 limits for larger batch processing.
The RTX 4070 operates at 200W TDP with 58.3 TFLOPS dense FP16 suitable for efficient lower power inference.
The RTX 3090 provides 71 TFLOPS dense FP16 and 24 GB VRAM for handling fine tuning workloads with higher memory needs.
Both GPUs deliver comparable dense FP16 performance at 71 TFLOPS and 58.3 TFLOPS with the RTX 4070 using less power at 200W.
The RTX 3090 achieves 35.6 TFLOPS FP32 and 284 TOPS dense INT8 that support compute intensive scientific tasks.
Frequently Asked Questions
What is the memory bandwidth difference?▾
The RTX 3090 reaches 936 GB/s memory bandwidth. The RTX 4070 reaches 504 GB/s memory bandwidth.
Which GPU has higher FP32 performance?▾
The RTX 3090 delivers 35.6 TFLOPS in FP32. The RTX 4070 delivers 29.1 TFLOPS in FP32.
How do the dense FP16 figures compare?▾
The RTX 3090 provides 71 TFLOPS dense FP16. The RTX 4070 provides 58.3 TFLOPS dense FP16.
What TDP values are listed for each card?▾
The RTX 3090 lists a TDP of 350W. The RTX 4070 lists a TDP of 200W.
Do both GPUs support NVLink?▾
The RTX 3090 supports NVLink interconnect. The RTX 4070 supports only PCIe 4.0 interconnect.
Which is cheaper to rent, the RTX 3090 or the RTX 4070?▾
Cloud rental prices for both the RTX 3090 and RTX 4070 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 RTX 3090 have compared to the RTX 4070?▾
The RTX 3090 has 24 GB of GDDR6X memory. The RTX 4070 has 12 to 16 GB of GDDR6X memory.
Can I find RTX 3090 and RTX 4070 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 RTX 3090 and the RTX 4070?▾
The RTX 3090 uses the Ampere architecture (2020) while the RTX 4070 uses Ada Lovelace (2023). The RTX 3090 delivers 1.2x the dense FP16 throughput (71 vs 58.3 TFLOPS, both without sparsity) and 1.9x the memory bandwidth of the RTX 4070.
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 RTX 3090 and the RTX 4070. 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 RTX 3090Every current offer by provider, daily price history and a price alert.
- Rent RTX 4070Every 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.