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 demonstrates superior raw compute: its 35.6 TFLOPS in FP16 and FP32 dwarfs the RTX 2080's 10.1 TFLOPS, enabling over three times faster training and inference for deep learning models. Since both GPUs offer identical FP16 to FP32 ratios, they handle mixed-precision workflows equally well relative to their peaks, but the RTX 3090 Ti processes larger datasets quicker in practice. Memory bandwidth plays a key role: 936 GB/s on the RTX 3090 Ti supports bigger batch sizes than the RTX 2080's 616 GB/s, reducing training iteration times for memory-intensive tasks like transformer models. The 24 GB VRAM on the RTX 3090 Ti accommodates models exceeding 11 GB, avoiding out-of-memory errors common on the RTX 2080 during high-resolution inference or fine-tuning. Higher TDP at 350W for the RTX 3090 Ti reflects its power demands, yet yields proportional gains in throughput for sustained workloads.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
RTX 2080
| 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 153GB 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
The RTX 2080 fits scenarios with tight budgets and modest requirements. Its pricing from $0.05 per hour suits prototyping, small-scale inference, or fine-tuning models under 8 GB VRAM, where 10.1 TFLOPS and 616 GB/s bandwidth deliver adequate speed. Lower 215W TDP minimizes power overhead in cloud environments with instance limits.
When to Choose the RTX 3090 Ti
Opt for the RTX 3090 Ti in high-performance needs like large model training or generation tasks. 24 GB VRAM handles LLMs or high-res images without splitting batches, while 35.6 TFLOPS and 936 GB/s bandwidth accelerate workflows by over three times versus the RTX 2080. Despite higher average cost of $0.25 per hour, it justifies expense for production-scale AI.
Use Cases
The RTX 3090 Ti's 24 GB VRAM and 35.6 TFLOPS support large language models without memory constraints, unlike the RTX 2080's 8 to 11 GB limit. Higher 936 GB/s bandwidth sustains large batch sizes for efficient training.
35.6 TFLOPS on the RTX 3090 Ti enables faster token generation for production inference compared to 10.1 TFLOPS on the RTX 2080. 24 GB VRAM fits full models, reducing latency.
Small fine-tuning tasks fit within RTX 2080's 8 to 11 GB VRAM at lower $0.05 per hour cost. Larger adapters demand RTX 3090 Ti's 24 GB and 35.6 TFLOPS.
RTX 3090 Ti's 24 GB VRAM manages high-resolution image generation without swapping, paired with 936 GB/s bandwidth for quick iterations. RTX 2080 limits to lower resolutions.
35.6 TFLOPS FP32 performance on RTX 3090 Ti accelerates simulations over RTX 2080's 10.1 TFLOPS. Greater bandwidth handles large datasets effectively.
Frequently Asked Questions
Which GPU has more VRAM: RTX 2080 or RTX 3090 Ti?▾
The RTX 3090 Ti offers 24 GB GDDR6X VRAM, far exceeding the RTX 2080's 8 to 11 GB GDDR6. This enables larger models on the RTX 3090 Ti. Memory capacity directly impacts batch sizes in training.
How do their compute performances compare?▾
RTX 3090 Ti delivers 35.6 TFLOPS in FP16 and FP32, over three times the RTX 2080's 10.1 TFLOPS. This gap shortens training times significantly. Both maintain equal FP16 to FP32 ratios for versatile AI tasks.
What are the cloud rental prices?▾
RTX 2080 rents from $0.05 per hour, averaging $0.07 per hour across two offers. RTX 3090 Ti starts at $0.10 per hour, averaging $0.25 per hour over five offers. Costs align with performance tiers.
Which has higher memory bandwidth?▾
RTX 3090 Ti provides 936 GB/s, surpassing RTX 2080's 616 GB/s. Higher bandwidth supports larger batches without slowdowns. It benefits data-heavy workloads like inference.
What is the power consumption difference?▾
RTX 2080 has a 215W TDP, lower than RTX 3090 Ti's 350W. Lower TDP suits power-constrained clouds. RTX 3090 Ti's draw correlates with its 35.6 TFLOPS output.
Are both suitable for NVLink?▾
Yes, both RTX 2080 and RTX 3090 Ti support NVLink interconnects for multi-GPU setups. This aids scaling compute across instances. PCIe form factor ensures broad cloud compatibility.
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.