Specifications Compared
| Spec | RTX 3090 Ti | RTX 5090 |
|---|---|---|
| TDP | 350W | 575W |
| VRAM | 24 GB | 32 GB |
| CUDA Cores | 10,496 | 21,760 |
| FP4 (dense) | Not published | 1,676 TFLOPS |
| FP8 (dense) | Not published | 419 TFLOPS |
| Memory Type | GDDR6X | GDDR7 |
| Architecture | Ampere | Blackwell |
| FP16 (dense) | Not published | 209.5 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | Not published | 838 TOPS |
| Interconnect | NVLink | PCIe 5.0 |
| Tensor Cores | 328 | 680 |
| FP32 Performance | 35.6 TFLOPS | 104.8 TFLOPS |
| FP64 Performance | Not published | 1.6 TFLOPS |
| Memory Bandwidth | 936 GB/s | 1,792 GB/s |
| FP4 (with sparsity) | Not published | 3,352 TFLOPS |
| FP8 (with sparsity) | Not published | 838 TFLOPS |
| FP16 (with sparsity) | Not published | 419 TFLOPS |
| INT8 (with sparsity) | Not published | 1,676 TOPS |
| FP16 (vendor figure, sparsity not specified) | 35.6 TFLOPS | Not published |
Performance Analysis
The RTX 3090 Ti delivers 35.6 TFLOPS FP16 with sparsity not specified and 35.6 TFLOPS FP32. The RTX 5090 reaches 209.5 TFLOPS dense FP16 and 104.8 TFLOPS FP32. The dense FP16 advantage on the RTX 5090 supports faster training iterations and higher inference throughput for models that fit the 32 GB capacity. Memory bandwidth of 936 GB per second on the RTX 3090 Ti family constrains maximum batch sizes relative to 1792 GB per second on the RTX 5090 family during both training and inference workloads. The 350 watt TDP on the RTX 3090 Ti family versus 575 watts on the RTX 5090 family further differentiates sustained operation limits.
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.
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When to Choose the RTX 3090 Ti
The RTX 3090 Ti variant suits workloads that require NVLink interconnect for multi GPU scaling with its 24 GB GDDR6X memory. Scenarios with strict power limits benefit from the 350 watt TDP shared across the RTX 3090 family.
When to Choose the RTX 5090
The RTX 5090 variant fits high throughput inference and training tasks that exploit 209.5 TFLOPS dense FP16 and 1792 GB per second bandwidth with its 32 GB GDDR7 memory.
Use Cases
The RTX 5090 provides 209.5 TFLOPS dense FP16 versus 35.6 TFLOPS with sparsity not specified on the RTX 3090 Ti.
The RTX 5090 supports larger batches through 1792 GB per second bandwidth and 32 GB memory compared to 936 GB per second and 24 GB on the RTX 3090 Ti.
The RTX 5090 achieves 104.8 TFLOPS FP32 for fine tuning operations while the RTX 3090 Ti reaches 35.6 TFLOPS FP32.
The RTX 5090 handles higher resolution generation with 32 GB GDDR7 memory and 209.5 TFLOPS dense FP16.
The RTX 3090 Ti variant includes NVLink interconnect for multi GPU scientific workloads at a 350 watt TDP.
Frequently Asked Questions
What are the TDP values for these GPUs?▾
The RTX 3090 Ti family lists a TDP of 350 watts. The RTX 5090 family lists a TDP of 575 watts.
What FP32 performance do the GPUs achieve?▾
The RTX 3090 Ti reaches 35.6 TFLOPS FP32. The RTX 5090 reaches 104.8 TFLOPS FP32.
Which interconnect does each variant support?▾
The RTX 3090 Ti variant supports NVLink interconnect. The RTX 5090 variant supports PCIe 5.0 interconnect.
How do the memory capacities compare?▾
The RTX 3090 Ti variant has 24 GB GDDR6X memory. The RTX 5090 variant has 32 GB GDDR7 memory.
Which is cheaper to rent, the RTX 3090 Ti or the RTX 5090?▾
Cloud rental prices for both the RTX 3090 Ti and RTX 5090 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 Ti have compared to the RTX 5090?▾
The RTX 3090 Ti has 24 GB of GDDR6X memory. The RTX 5090 has 32 GB of GDDR7 memory.
Can I find RTX 3090 Ti and RTX 5090 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 Ti and the RTX 5090?▾
The RTX 3090 Ti uses the Ampere architecture (2020) while the RTX 5090 uses Blackwell (2025). The RTX 5090 delivers 3.0x the dense FP16 throughput (209.5 vs 71 TFLOPS, both without sparsity) and 1.9x the memory bandwidth of the RTX 3090 Ti.
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 Ti and the RTX 5090. 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 5090Every 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.