Specifications Compared
| Spec | GTX 1080 Ti | RTX 3090 Ti |
|---|---|---|
| TDP | 180W | 350W |
| VRAM | 11 GB | 24 GB |
| CUDA Cores | 2,560 | 10,496 |
| Memory Type | GDDR5X | GDDR6X |
| Architecture | Pascal | Ampere |
| Form Factors | PCIe | PCIe |
| Interconnect | Not published | NVLink |
| Tensor Cores | Not published | 328 |
| FP32 Performance | 8.9 TFLOPS | 35.6 TFLOPS |
| Memory Bandwidth | 320 GB/s | 936 GB/s |
| FP16 (vendor figure, sparsity not specified) | 8.9 TFLOPS | 35.6 TFLOPS |
Performance Analysis
Dense FP32 throughput reaches 8.9 TFLOPS on the GTX 1080 Ti and 35.6 TFLOPS on the RTX 3090 Ti so the newer variant processes matrix operations four times faster during training and inference. The memory bandwidth shared by all RTX 3090 variants at 936 GB/s supports larger batch sizes than the 320 GB/s bandwidth shared by all GTX 1080 variants. Dense FP16 throughput equals the dense FP32 values at 8.9 TFLOPS for the GTX 1080 Ti and 35.6 TFLOPS for the RTX 3090 Ti allowing consistent scaling without sparsity factors in either case.
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.
GTX 1080 Ti
1 provider in stock, 2 offers (cheapest per provider shown). All GTX 1080 Ti offers, price history and alerts
RTX 3090 Ti
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Vast.ai | Finland, FI | 4 | $0.27 | $1.07 | Deploy |
| LeaderGPU | The Netherlands | 8 | $0.29 | $2.29 | Deploy |
2 providers in stock, 9 offers (cheapest per provider shown). All RTX 3090 Ti offers, price history and alerts
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When to Choose the GTX 1080 Ti
The GTX 1080 Ti variant fits power constrained setups limited to 180 W TDP and workloads that remain within 11 GB memory capacity. Smaller inference jobs or scientific computing tasks that require only 8.9 TFLOPS dense FP32 benefit from this model without excess power draw.
When to Choose the RTX 3090 Ti
The RTX 3090 Ti variant handles workloads that need 24 GB memory and 35.6 TFLOPS dense FP32 such as large scale fine tuning. NVLink interconnect on this variant enables multi card scaling for training sessions that exceed single GPU limits.
Use Cases
The RTX 3090 Ti variant supplies 24 GB memory and 35.6 TFLOPS dense FP32 to accommodate larger models than the 11 GB limit of the GTX 1080 Ti.
The RTX 3090 Ti variant delivers 936 GB/s bandwidth and 35.6 TFLOPS dense FP32 for faster token generation with bigger batch sizes.
The RTX 3090 Ti variant provides 24 GB GDDR6X and NVLink support that the GTX 1080 Ti variant lacks for parameter updates.
The RTX 3090 Ti variant offers 24 GB memory capacity that exceeds the 11 GB of the GTX 1080 Ti for higher resolution image generation.
The GTX 1080 Ti variant at 180 W TDP suffices for simulations that fit in 11 GB while the RTX 3090 Ti variant handles larger datasets at 350 W.
Frequently Asked Questions
What memory capacities distinguish the GTX 1080 Ti variant from the RTX 3090 Ti variant?▾
The GTX 1080 Ti variant holds 11 GB GDDR5X while the RTX 3090 Ti variant holds 24 GB GDDR6X for a 13 GB difference.
How do the TDP values compare between these two variants?▾
The GTX 1080 Ti variant operates at 180 W TDP whereas the RTX 3090 Ti variant operates at 350 W TDP.
What memory bandwidth figures apply to each family?▾
All GTX 1080 variants share 320 GB/s bandwidth while all RTX 3090 variants share 936 GB/s bandwidth.
Do these variants support NVLink interconnect?▾
The RTX 3090 Ti variant includes NVLink while the GTX 1080 Ti variant does not list NVLink capability.
What dense FP32 performance do the variants deliver?▾
The GTX 1080 Ti variant reaches 8.9 TFLOPS dense FP32 and the RTX 3090 Ti variant reaches 35.6 TFLOPS dense FP32.
Which is cheaper to rent, the GTX 1080 Ti or the RTX 3090 Ti?▾
Cloud rental prices for both the GTX 1080 Ti and RTX 3090 Ti 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 GTX 1080 Ti have compared to the RTX 3090 Ti?▾
The GTX 1080 Ti has 11 GB of GDDR5X memory. The RTX 3090 Ti has 24 GB of GDDR6X memory.
Can I find GTX 1080 Ti and RTX 3090 Ti 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 GTX 1080 Ti and the RTX 3090 Ti?▾
The GTX 1080 Ti uses the Pascal architecture (2016) while the RTX 3090 Ti uses Ampere (2020). The GTX 1080 Ti has 11 GB of GDDR5X at 320 GB/s; the RTX 3090 Ti has 24 GB of GDDR6X at 936 GB/s, so the RTX 3090 Ti has 2.9x the memory bandwidth of the GTX 1080 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 GTX 1080 Ti and the RTX 3090 Ti. 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 GTX 1080Every current offer by provider, daily price history and a price alert.
- Rent RTX 3090Every 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.