Specifications Compared
| Spec | RTX 3090 | RTX 5070 |
|---|---|---|
| TDP | 350W | 250W |
| VRAM | 24 GB | 12-16 GB |
| CUDA Cores | 10,496 | 6,144 |
| FP4 (dense) | Not published | 493.9 TFLOPS |
| FP8 (dense) | Not published | 123.5 TFLOPS |
| Memory Type | GDDR6X | GDDR7 |
| Architecture | Ampere | Blackwell |
| FP16 (dense) | 71 TFLOPS | 61.7 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 284 TOPS | 246.9 TOPS |
| Interconnect | NVLink, PCIe 4.0 | PCIe 5.0 |
| Tensor Cores | 328 | 192 |
| FP32 Performance | 35.6 TFLOPS | 30.9 TFLOPS |
| Memory Bandwidth | 936 GB/s | 672 GB/s |
| FP4 (with sparsity) | Not published | 987.8 TFLOPS |
| FP8 (with sparsity) | Not published | 246.9 TFLOPS |
| FP16 (with sparsity) | 142 TFLOPS | 123.5 TFLOPS |
| INT8 (with sparsity) | 568 TOPS | 493.9 TOPS |
Performance Analysis
Dense FP16 performance reaches 71 TFLOPS on the RTX 3090 compared with 61.7 TFLOPS on the RTX 5070 while sparse FP16 performance reaches 142 TFLOPS on the RTX 3090 compared with 123.5 TFLOPS on the RTX 5070. The ratio of dense FP16 to FP32 equals 71 divided by 35.6 on the RTX 3090 and 61.7 divided by 30.9 on the RTX 5070. Higher memory bandwidth of 936 GB/s on the RTX 3090 supports larger batch sizes than the 672 GB/s bandwidth on the RTX 5070 during training and inference workloads. Dense INT8 performance equals 284 TOPS on the RTX 3090 against 246.9 TOPS on the RTX 5070 while sparse INT8 performance equals 568 TOPS on the RTX 3090 against 493.9 TOPS on the RTX 5070.
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 |
|---|---|---|---|---|---|
| LeaderGPU | The Netherlands | 8 | $0.29 | $2.29 | Deploy |
| Vast.ai | Czechia, CZ | 4 | $0.37 | $1.48 | Deploy |
| RunPod | global | 1 | $0.50 | — | Deploy |
3 providers in stock, 11 offers (cheapest per provider shown). All RTX 3090 offers, price history and alerts
RTX 5070
RTX 5070 is not offered on-demand by any provider we track right now. See the RTX 5070 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: $0.29/GPU-hr.
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When to Choose the RTX 3090
The RTX 3090 suits workloads that require the full 24 GB VRAM capacity for models that exceed 12 to 16 GB. Its 936 GB/s memory bandwidth enables larger batch sizes than the 672 GB/s bandwidth of the RTX 5070. NVLink interconnect on the RTX 3090 further supports multi GPU scaling in scientific computing tasks that use its 35.6 TFLOPS FP32 rating.
When to Choose the RTX 5070
Choose the RTX 5070 when your model already fits in 12 to 16 GB and you serve it in FP8 or FP4, formats the RTX 3090 cannot run natively; the RTX 5070 lists 123.5 TFLOPS dense FP8 and 493.9 TFLOPS dense FP4. It also draws 250W against 350W. Skip it the moment you need more than 16 GB or you are bandwidth bound in FP16, since the RTX 3090 leads at 936 GB/s against 672 GB/s.
Use Cases
The RTX 3090 supplies 24 GB VRAM against 12 to 16 GB on the RTX 5070 and its 936 GB/s bandwidth exceeds 672 GB/s.
The RTX 5070 provides FP8 dense performance of 123.5 TFLOPS and FP4 dense performance of 493.9 TFLOPS along with 250 W TDP.
The RTX 3090 delivers 24 GB VRAM and dense FP16 performance of 71 TFLOPS for models that need the extra capacity.
The RTX 3090 includes NVLink interconnect and 35.6 TFLOPS FP32 performance for multi GPU configurations.
Frequently Asked Questions
What is the FP16 performance difference between these GPUs?▾
Dense FP16 performance equals 71 TFLOPS on the RTX 3090 and 61.7 TFLOPS on the RTX 5070. Sparse FP16 performance equals 142 TFLOPS on the RTX 3090 and 123.5 TFLOPS on the RTX 5070.
Which GPU has lower power consumption?▾
The RTX 5070 operates at 250 W TDP while the RTX 3090 operates at 350 W TDP. FP32 performance stands at 30.9 TFLOPS on the RTX 5070 and 35.6 TFLOPS on the RTX 3090.
Does the RTX 5070 support FP8 or FP4 operations?▾
The RTX 5070 lists FP8 dense performance at 123.5 TFLOPS and FP4 dense performance at 493.9 TFLOPS. The RTX 3090 does not publish FP8 or FP4 figures.
What interconnect options exist on each card?▾
The RTX 3090 includes NVLink and PCIe 4.0 while the RTX 5070 includes PCIe 5.0. These options affect multi GPU scaling configurations.
Which is cheaper to rent, the RTX 3090 or the RTX 5070?▾
Cloud rental prices for both the RTX 3090 and RTX 5070 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 5070?▾
The RTX 3090 has 24 GB of GDDR6X memory. The RTX 5070 has 12 to 16 GB of GDDR7 memory.
Can I find RTX 3090 and RTX 5070 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 5070?▾
The RTX 3090 uses the Ampere architecture (2020) while the RTX 5070 uses Blackwell (2025). The RTX 3090 delivers 1.2x the dense FP16 throughput (71 vs 61.7 TFLOPS, both without sparsity) and 1.4x the memory bandwidth of the RTX 5070.
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 5070. 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 5070Every 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.