Specifications Compared
| Spec | RTX 2080 | RTX 3090 |
|---|---|---|
| TDP | 215W | 350W |
| VRAM | 8-11 GB | 24 GB |
| CUDA Cores | 2,944 | 10,496 |
| Memory Type | GDDR6 | GDDR6X |
| Architecture | Turing | Ampere |
| FP16 (dense) | 40.3 TFLOPS | 71 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 161.1 TOPS | 284 TOPS |
| Interconnect | NVLink, PCIe 3.0 | NVLink, PCIe 4.0 |
| Tensor Cores | 368 | 328 |
| FP32 Performance | 10 TFLOPS | 35.6 TFLOPS |
| Memory Bandwidth | 448 GB/s | 936 GB/s |
| FP16 (with sparsity) | Not published | 142 TFLOPS |
| INT8 (with sparsity) | Not published | 568 TOPS |
Performance Analysis
The FP16 dense performance reaches 40.3 TFLOPS on the RTX 2080 compared with 71 TFLOPS dense on the RTX 3090 so the latter delivers higher throughput for mixed precision workloads. FP32 figures of 10 TFLOPS versus 35.6 TFLOPS indicate that training jobs complete in fewer steps on the RTX 3090 when using dense operations exclusively. Memory bandwidth of 448 GB per second versus 936 GB per second allows the RTX 3090 to sustain larger batch sizes during inference without swapping data as frequently as the RTX 2080 requires.
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 2080
RTX 2080 is not offered on-demand by any provider we track right now. See the RTX 2080 rental page for last-seen listed prices and a price alert.
RTX 3090
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| LeaderGPU | The Netherlands | 8 | $0.29 | $2.29 | Deploy |
| Vast.ai | Czechia, CZ | 8 | $0.37 | $2.97 | Deploy |
2 providers in stock, 10 offers (cheapest per provider shown). All RTX 3090 offers, price history and alerts
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When to Choose the RTX 2080
The RTX 2080 suits environments where power draw must stay at 215 W and where FP16 dense workloads of 40.3 TFLOPS suffice. Its 8 GB to 11 GB memory configuration fits inference tasks that do not exceed the 448 GB per second bandwidth limit.
When to Choose the RTX 3090
The RTX 3090 fits workloads that require 24 GB memory and 936 GB per second bandwidth to handle larger models. Its FP32 rating of 35.6 TFLOPS and dense FP16 rating of 71 TFLOPS accelerate both training and inference relative to the lower TDP option.
Use Cases
The RTX 3090 supplies 24 GB memory and 35.6 TFLOPS FP32 that exceed the RTX 2080 limits for sustained training runs.
Dense FP16 performance of 71 TFLOPS combined with 936 GB per second bandwidth supports larger batch sizes than the 40.3 TFLOPS and 448 GB per second on the RTX 2080.
The 24 GB capacity and 71 TFLOPS dense FP16 rating allow the RTX 3090 to process fine tuning datasets that exceed the 8 GB to 11 GB limit of the RTX 2080.
Higher memory bandwidth of 936 GB per second on the RTX 3090 enables faster iteration than the 448 GB per second available on the RTX 2080.
Both GPUs support NVLink yet the RTX 2080 at 215 W TDP may be selected when power constraints outweigh the 35.6 TFLOPS FP32 advantage of the RTX 3090.
Frequently Asked Questions
What is the FP32 performance difference between the RTX 2080 and RTX 3090?▾
The RTX 2080 delivers 10 TFLOPS FP32 while the RTX 3090 reaches 35.6 TFLOPS FP32 so the latter provides higher throughput for single precision calculations.
Which GPU has higher memory bandwidth?▾
The RTX 3090 provides 936 GB per second bandwidth compared with 448 GB per second on the RTX 2080 so data movement occurs more rapidly on the newer card.
What are the TDP values for these GPUs?▾
The RTX 2080 lists a TDP of 215 W and the RTX 3090 lists a TDP of 350 W indicating different power and cooling requirements.
Do both GPUs support the same interconnects?▾
Both the RTX 2080 and RTX 3090 support NVLink and PCIe form factors though the RTX 3090 uses PCIe 4.0 while the RTX 2080 uses PCIe 3.0.
Which is cheaper to rent, the RTX 2080 or the RTX 3090?▾
Cloud rental prices for both the RTX 2080 and RTX 3090 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 2080 have compared to the RTX 3090?▾
The RTX 2080 has 8 to 11 GB of GDDR6 memory. The RTX 3090 has 24 GB of GDDR6X memory.
Can I find RTX 2080 and RTX 3090 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 2080 and the RTX 3090?▾
The RTX 2080 uses the Turing architecture (2018) while the RTX 3090 uses Ampere (2020). The RTX 3090 delivers 1.8x the dense FP16 throughput (71 vs 40.3 TFLOPS, both without sparsity) and 2.1x the memory bandwidth of the RTX 2080.
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 2080 and the RTX 3090. 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 2080Every 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.