COMPARE / RTX 3080 TI VS RTX 3090
RTX 3080 Ti vs RTX 3090
Specs from the chip makers' datasheets; prices from the live Compute Cafe panel, refreshed hourly. Every rate is an on-demand published price with a source receipt.
CHEAPEST RTX 3080 TI
$0.070/hr
SpotGPUs · median $0.55 · 8 providers
CHEAPEST RTX 3090
$0.080/hr
SpotGPUs · median $0.45 · 26 providers
CHEAPER RIGHT NOW
RTX 3080 Ti
live panel, 2026-09-27
| RTX 3080 TI | RTX 3090 | |
|---|---|---|
| MAKER | NVIDIA | NVIDIA |
| ARCHITECTURE | Ampere | Ampere |
| LAUNCHED | 2021 | 2020 |
| MEMORY | 12 GB GDDR6X | 24 GB GDDR6X |
| MEMORY BANDWIDTH | 912 GB/s | 936 GB/s |
| TENSOR COMPUTE | 34.1 TFLOPS FP32; 3rd-gen tensor cores | 142 TFLOPS FP16 tensor dense (285 sparse) |
| POWER DRAW | 350 W | 350 W |
| INTERCONNECT | PCIe 4.0 x16 | PCIe 4.0 x16 (NVLink bridge on pairs) |
HOW TO CHOOSE
RTX 3080 Ti vs RTX 3090
The 3090 doubles memory to 24 GB for a modest speed sacrifice - the difference between a dev card and a real LLM workhorse.
Workload fit
RTX 3080 Ti: 7b-class inference, media generation, fine-tuning. RTX 3090: budget fine-tuning, small-model inference.
RTX 3080 TI VS RTX 3090 - FAQ
Which is cheaper to rent, RTX 3080 Ti or RTX 3090?
By today's published on-demand rates: RTX 3080 Ti starts at $0.070/GPU/hr (median $0.55, 8 providers) and RTX 3090 starts at $0.080/GPU/hr (median $0.45, 26 providers). The cheapest live listing is the RTX 3080 Ti at SpotGPUs. Figures recompute from the panel on every refresh.
RTX 3080 Ti or RTX 3090 - which should I rent?
RTX 3080 Ti: The 3080 Ti is Ampere's near-flagship: 12 GB of GDDR6X at 912 GB/s - bandwidth that still beats most mid-range cards sold today. RTX 3090: The RTX 3090 remains the budget multi-GPU favorite: 24 GB per card, and uniquely among consumer cards its generation supports NVLink bridge pairs - 48 GB linked for under a dollar an hour on parts of the panel. The side-by-side spec table and live price rows above give the full picture.
Where can I rent RTX 3080 Ti and RTX 3090?
8 providers publish RTX 3080 Ti rates and 26 publish RTX 3090 rates on Compute Cafe. Every row links to the provider's own published price - committed-use and reserved rates are excluded.
Full pricing: RTX 3080 Ti · RTX 3090 · all comparisons