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 |
| Form Factors | PCIe | PCIe |
| Interconnect | NVLink | NVLink |
| Tensor Cores | 368 | 328 |
| FP16 Performance | 10.1 TFLOPS | 35.6 TFLOPS |
| FP32 Performance | 10.1 TFLOPS | 35.6 TFLOPS |
| Memory Bandwidth | 616 GB/s | 936 GB/s |
Performance Analysis
The RTX 3090 Ti outperforms the RTX 2080 Ti with 35.6 TFLOPS in FP16 and FP32 compared to 10.1 TFLOPS, enabling faster model training and inference by a factor of over three times. This compute advantage accelerates deep learning pipelines where FP16 precision handles mixed workloads efficiently. Higher memory bandwidth of 936 GB/s on the RTX 3090 Ti versus 616 GB/s supports larger batch sizes, reducing training times for datasets that exceed the RTX 2080 Ti's limits. The 24 GB VRAM on the RTX 3090 Ti accommodates massive models like large language models without swapping, while the RTX 2080 Ti's 8 to 11 GB restricts it to smaller batches or models. In inference scenarios, the bandwidth delta minimizes latency for high-throughput serving. Power draw rises to 350W on the RTX 3090 Ti from 215W, demanding robust cooling in cloud instances.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
RTX 2080 Ti
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
 Vast.ai | NVIDIA GeForce RTX 2080 Ti 11GB VRAM | 11GB | 32 vCPU 63GB RAM 1273GB Storage | Maryland | $0.13/GPU/hr | Available |
RTX 3090 Ti
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
 TensorDock | NVIDIA GeForce RTX 3090 24GB VRAM | 24GB | 0 vCPU 0GB RAM | Wilmington, Delaware | $0.20/GPU/hr | Available | ||
TensorDock | NVIDIA GeForce RTX 3090 24GB VRAM | 24GB | 0 vCPU 0GB RAM | Dallas, Texas | $0.21/GPU/hr | Available | ||
Vast.ai | 4×NVIDIA GeForce RTX 3090 24GB VRAM | 24GB | 32 vCPU 403GB RAM 104GB Storage | Iceland | $0.25/GPU/hr $1.01/hr total (4×) | Available | ||
Vast.ai | 4×NVIDIA GeForce RTX 3090 24GB VRAM | 24GB | 32 vCPU 252GB RAM 1440GB Storage | Finland | $0.27/GPU/hr $1.07/hr total (4×) | Available | ||
 LeaderGPU | 8×NVIDIA GeForce RTX 3090 24GB VRAM | 24GB | 64 vCPU 384GB RAM 2000GB Storage | Netherlands | $0.29/GPU/hr $2.29/hr total (8×) | Available |
When to Choose the RTX 2080 Ti
The RTX 2080 Ti suits cost-sensitive projects with modest requirements. Its 10.1 TFLOPS FP32 performance and 8 to 11 GB VRAM handle fine-tuning small models or basic inference at $0.06 per hour starting price. Lower 215W TDP fits constrained power budgets in multi-GPU cloud clusters via NVLink.
When to Choose the RTX 3090 Ti
Opt for the RTX 3090 Ti in memory-intensive tasks leveraging 24 GB VRAM and 936 GB/s bandwidth. It excels in training large models at 35.6 TFLOPS, justifying $0.10 per hour entry cost for superior throughput. High TDP of 350W supports intensive workloads in PCIe-based cloud setups.
Use Cases
The RTX 3090 Ti's 24 GB VRAM and 936 GB/s bandwidth enable training large LLMs with bigger batches, unlike the RTX 2080 Ti's 8-11 GB limit. Its 35.6 TFLOPS FP16 speeds convergence significantly.
RTX 3090 Ti handles high-throughput inference on 24 GB models at 35.6 TFLOPS with low latency via 936 GB/s bandwidth. RTX 2080 Ti struggles with memory constraints on similar scales.
RTX 2080 Ti suffices for small model fine-tuning with 10.1 TFLOPS and lower $0.10/hr average cost. RTX 3090 Ti accelerates larger ones but adds expense.
RTX 3090 Ti's 24 GB VRAM supports high-resolution image generation without offloading, boosted by 35.6 TFLOPS. RTX 2080 Ti limits batch sizes at 8-11 GB.
RTX 2080 Ti's 215W TDP and $0.06/hr starting price fit power-limited simulations at 10.1 TFLOPS. RTX 3090 Ti offers excess capacity for most cases.
Frequently Asked Questions
What is the VRAM difference between RTX 2080 Ti and RTX 3090 Ti?▾
The RTX 2080 Ti has 8 to 11 GB GDDR6 VRAM, while the RTX 3090 Ti provides 24 GB GDDR6X. This gap allows the RTX 3090 Ti to load larger models without issues. Memory bandwidth follows at 616 GB/s versus 936 GB/s.
Which GPU has higher performance in TFLOPS?▾
RTX 3090 Ti delivers 35.6 TFLOPS in both FP16 and FP32, compared to RTX 2080 Ti's 10.1 TFLOPS. This makes it over three times faster for AI computations. Both share equal FP16 and FP32 rates.
How do cloud prices compare for these GPUs?▾
RTX 2080 Ti starts at $0.06 per hour averaging $0.10 across four offers. RTX 3090 Ti begins at $0.10 per hour averaging $0.25 across five offers. Pricing reflects performance disparity.
What are the TDP ratings?▾
RTX 2080 Ti consumes 215W, suitable for efficient setups. RTX 3090 Ti requires 350W for its higher output. Both use PCIe form factors.
Can these GPUs connect via NVLink?▾
Both RTX 2080 Ti and RTX 3090 Ti support NVLink for multi-GPU scaling. This aids distributed training. PCIe compatibility ensures broad cloud availability.
Which is better for large model training?▾
RTX 3090 Ti excels with 24 GB VRAM and 35.6 TFLOPS for large models. RTX 2080 Ti's 8-11 GB limits batch sizes effectively. Bandwidth of 936 GB/s further advantages the newer card.
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 3.5x the FP16 throughput and 1.5x the memory bandwidth of the RTX 2080.