Specifications Compared
| Spec | RTX-3070 | RTX-3080 |
|---|---|---|
| TDP | 220W | 320W |
| VRAM | 8 GB | 10-12 GB |
| CUDA Cores | 5,888 | 8,704 |
| Memory Type | GDDR6 | GDDR6X |
| Architecture | Ampere | Ampere |
| Form Factors | PCIe | PCIe |
| Interconnect | ||
| Tensor Cores | 184 | 272 |
| FP16 Performance | 20.3 TFLOPS | 29.8 TFLOPS |
| FP32 Performance | 20.3 TFLOPS | 29.8 TFLOPS |
| Memory Bandwidth | 448 GB/s | 760 GB/s |
Performance Analysis
Superior compute on the RTX 3080, with 29.8 TFLOPS in FP16 and FP32 versus 20.3 TFLOPS on the RTX 3070 Ti, accelerates deep learning training and inference by approximately 47 percent. FP16 performance directly impacts mixed-precision training common in LLMs, allowing the RTX 3080 to process iterations faster.
Higher memory bandwidth of 760 GB/s on the RTX 3080, compared to 448 GB/s on the RTX 3070 Ti, supports larger batch sizes in data-intensive workloads, minimizing transfer bottlenecks. The RTX 3080's 10-12 GB VRAM handles bigger models without out-of-memory errors, unlike the 8 GB limit on the RTX 3070 Ti. This combination enhances throughput for inference serving at scale.
The 320W TDP of the RTX 3080 demands more cooling than the 220W RTX 3070 Ti, but yields better efficiency per watt in compute-heavy scenarios.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
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When to Choose the RTX 3070 Ti
The RTX 3070 Ti excels in cost-optimized environments. Its average cloud price of $0.08 per hour and 220W TDP make it suitable for development, light inference, or fine-tuning smaller models within 8 GB VRAM. Users with power constraints or tight budgets benefit from its 20.3 TFLOPS performance without overprovisioning.
When to Choose the RTX 3080
Opt for the RTX 3080 in high-throughput applications. With 29.8 TFLOPS FP16/FP32 and 760 GB/s bandwidth, it outperforms in training large models or inference with big batches, leveraging 10-12 GB VRAM. The higher average $0.17 per hour cost aligns with production workloads demanding speed.
Use Cases
The RTX 3080's 29.8 TFLOPS FP16 outperforms the RTX 3070 Ti's 20.3 TFLOPS, enabling faster training cycles. Higher 760 GB/s bandwidth supports larger batches.
RTX 3080 handles larger models with 10-12 GB VRAM versus 8 GB on RTX 3070 Ti. 29.8 TFLOPS ensures lower latency for high-volume requests.
RTX 3070 Ti suffices for smaller models with 8 GB VRAM and costs average $0.08 per hour. Its 20.3 TFLOPS meets moderate fine-tuning needs efficiently.
RTX 3080's 760 GB/s bandwidth and 10-12 GB VRAM accelerate image generation. Superior 29.8 TFLOPS boosts diffusion model throughput.
Both offer FP32 at 20.3 or 29.8 TFLOPS for simulations. Choose RTX 3070 Ti for cost savings or RTX 3080 for complex datasets needing more VRAM.
Frequently Asked Questions
Which GPU has more VRAM: RTX 3070 Ti or RTX 3080?▾
The RTX 3080 provides 10-12 GB GDDR6X VRAM, exceeding the RTX 3070 Ti's 8 GB GDDR6. This allows the RTX 3080 to manage larger AI models without memory constraints.
What is the performance difference in TFLOPS?▾
RTX 3080 delivers 29.8 TFLOPS in FP16 and FP32, compared to 20.3 TFLOPS on RTX 3070 Ti. This 47 percent advantage speeds up training and inference tasks.
How do cloud prices compare?▾
RTX 3070 Ti starts at $0.06 per hour with $0.08 average across 2 offers. RTX 3080 also starts at $0.06 per hour but averages $0.17 across 6 offers.
Which has higher memory bandwidth?▾
RTX 3080 offers 760 GB/s, doubling the RTX 3070 Ti's 448 GB/s. Higher bandwidth reduces bottlenecks for large batch sizes in ML workloads.
What are the TDP ratings?▾
RTX 3070 Ti consumes 220W, lower than the RTX 3080's 320W. Lower TDP suits power-limited cloud instances or laptops.
Are both GPUs from the same architecture?▾
Yes, both use Ampere from 2020 with PCIe form factors. Shared architecture ensures similar software compatibility for AI frameworks.
Which is cheaper to rent, the RTX 3070 or the RTX 3080?▾
Cloud rental prices for both the RTX 3070 and RTX 3080 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 3070 have compared to the RTX 3080?▾
The RTX 3070 has 8 GB of GDDR6 memory. The RTX 3080 has 10 to 12 GB of GDDR6X memory.
Can I find RTX 3070 and RTX 3080 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 3070 and the RTX 3080?▾
The RTX 3070 uses the Ampere architecture (2020) while the RTX 3080 uses Ampere (2020). The RTX 3080 delivers 1.5x the FP16 throughput and 1.7x the memory bandwidth of the RTX 3070.