Specifications Compared
| Spec | RTX-3080 | RTX-5080 |
|---|---|---|
| TDP | 320W | 360W |
| VRAM | 10-12 GB | 16 GB |
| CUDA Cores | 8,704 | 10,752 |
| Memory Type | GDDR6X | GDDR7 |
| Architecture | Ampere | Blackwell |
| Form Factors | PCIe | PCIe |
| Interconnect | ||
| Tensor Cores | 272 | 336 |
| FP16 Performance | 29.8 TFLOPS | 56.3 TFLOPS |
| FP32 Performance | 29.8 TFLOPS | 56.3 TFLOPS |
| Memory Bandwidth | 760 GB/s | 960 GB/s |
Performance Analysis
The RTX 5080 doubles the compute power of the RTX 3080 Ti: 56.3 TFLOPS versus 29.8 TFLOPS in both FP16 and FP32. This delta translates to roughly twice the speed in machine learning training and inference tasks, where FP16 handles mixed-precision computations efficiently. For LLM training, the higher TFLOPS enables faster iterations on large models. The RTX 5080's 960 GB/s bandwidth exceeds the RTX 3080 Ti's 760 GB/s by 26 percent, supporting larger batch sizes without memory bottlenecks. In inference scenarios, this sustains higher throughput for real-time applications. The 16 GB GDDR7 VRAM versus 10 to 12 GB GDDR6X accommodates bigger datasets, reducing swapping in memory-intensive operations like fine-tuning.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
RTX 5080
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
 RunPod | NVIDIA GeForce RTX 5080 16GB VRAM | 16GB | 0 vCPU 0GB RAM | 🌍global | $0.59/GPU/hr |
When to Choose the RTX 3080 Ti
The RTX 3080 Ti suits budget-conscious users targeting lightweight AI inference or Stable Diffusion generation. Its $0.08 per hour starting price delivers 29.8 TFLOPS at 320W TDP, ideal for small-scale projects where 10 to 12 GB VRAM suffices. Cloud deployments with cost limits favor it over pricier options for prototyping.
When to Choose the RTX 5080
Opt for the RTX 5080 in demanding workloads requiring 56.3 TFLOPS and 16 GB VRAM. Its 960 GB/s bandwidth excels in large-batch LLM training or scientific simulations. Despite $0.25 per hour pricing, the performance uplift justifies selection for production-scale inference.
Use Cases
The RTX 5080's 56.3 TFLOPS and 16 GB VRAM handle large models better than the RTX 3080 Ti's 29.8 TFLOPS and 10 to 12 GB. Higher bandwidth of 960 GB/s supports bigger batches.
56.3 TFLOPS FP16 performance doubles the RTX 3080 Ti's 29.8 TFLOPS for faster real-time serving. 16 GB VRAM fits more concurrent requests.
RTX 3080 Ti's 10 to 12 GB VRAM works for small models at $0.08 per hour. RTX 5080's 16 GB excels for larger ones with 56.3 TFLOPS.
RTX 3080 Ti's 29.8 TFLOPS and 760 GB/s bandwidth generate images efficiently at low $0.14 per hour average cost. 10 to 12 GB VRAM meets typical needs.
56.3 TFLOPS FP32 and 960 GB/s bandwidth accelerate simulations over RTX 3080 Ti's 29.8 TFLOPS. 16 GB VRAM manages complex datasets.
Frequently Asked Questions
What is the VRAM difference between RTX 3080 Ti and RTX 5080?▾
The RTX 3080 Ti offers 10 to 12 GB GDDR6X, while the RTX 5080 provides 16 GB GDDR7. This enables the RTX 5080 to handle larger models without issues.
How do cloud prices compare for these GPUs?▾
RTX 3080 Ti starts at $0.08 per hour averaging $0.14 per hour across four offers. RTX 5080 begins at $0.25 per hour averaging $0.38 per hour across four offers.
Which has higher compute performance?▾
RTX 5080 delivers 56.3 TFLOPS in FP16 and FP32, nearly double the RTX 3080 Ti's 29.8 TFLOPS. This boosts training and inference speeds.
What is the memory bandwidth gap?▾
RTX 5080 achieves 960 GB/s, surpassing the RTX 3080 Ti's 760 GB/s by 26 percent. Higher bandwidth improves batch processing.
Are both GPUs suitable for PCIe form factors?▾
Yes, both RTX 3080 Ti and RTX 5080 use PCIe form factors. They integrate easily into standard cloud instances.
Which TDP is higher?▾
RTX 5080 has a 360W TDP compared to RTX 3080 Ti's 320W. The increase supports greater performance output.
Which is cheaper to rent, the RTX 3080 or the RTX 5080?▾
Cloud rental prices for both the RTX 3080 and RTX 5080 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 3080 have compared to the RTX 5080?▾
The RTX 3080 has 10 to 12 GB of GDDR6X memory. The RTX 5080 has 16 GB of GDDR7 memory.
Can I find RTX 3080 and RTX 5080 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 3080 and the RTX 5080?▾
The RTX 3080 uses the Ampere architecture (2020) while the RTX 5080 uses Blackwell (2025). The RTX 5080 delivers 1.9x the FP16 throughput and 1.3x the memory bandwidth of the RTX 3080.