COMPARE / RTX 4080 VS RTX 4090
RTX 4080 vs RTX 4090
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 4080
$0.090/hr
SpotGPUs · median $0.72 · 7 providers
CHEAPEST RTX 4090
$0.090/hr
SpotGPUs · median $0.48 · 38 providers
CHEAPER RIGHT NOW
RTX 4080
live panel, 2026-09-27
| RTX 4080 | RTX 4090 | |
|---|---|---|
| MAKER | NVIDIA | NVIDIA |
| ARCHITECTURE | Ada Lovelace | Ada Lovelace |
| LAUNCHED | 2022 | 2022 |
| MEMORY | 16 GB GDDR6X | 24 GB GDDR6X |
| MEMORY BANDWIDTH | 717 GB/s | 1.0 TB/s |
| TENSOR COMPUTE | 48.7 TFLOPS FP32; 4th-gen tensor cores | 330 TFLOPS FP16 tensor dense (660 sparse); FP8 supported |
| POWER DRAW | 320 W | 450 W |
| INTERCONNECT | PCIe 4.0 x16 | PCIe 4.0 x16 |
HOW TO CHOOSE
RTX 4080 vs RTX 4090
The 4090's 24 GB fits whole model classes the 4080 cannot. For LLM work the premium is usually worth it.
Workload fit
RTX 4080: small-model inference, media generation, fine-tuning. RTX 4090: small-model inference, fine-tuning 7b-13b, image generation.
RTX 4080 VS RTX 4090 - FAQ
Which is cheaper to rent, RTX 4080 or RTX 4090?
By today's published on-demand rates: RTX 4080 starts at $0.090/GPU/hr (median $0.72, 7 providers) and RTX 4090 starts at $0.090/GPU/hr (median $0.48, 38 providers). The cheapest live listing is the RTX 4080 at SpotGPUs. Figures recompute from the panel on every refresh.
RTX 4080 or RTX 4090 - which should I rent?
RTX 4080: The RTX 4080 is Ada's second-tier consumer flagship: fast, efficient, and capped at 16 GB. RTX 4090: The RTX 4090 is the consumer card that built the budget GPU-cloud market: L40S-class FP16 throughput at a fraction of the price, limited by 24 GB of memory, no ECC, and no datacenter software features. The side-by-side spec table and live price rows above give the full picture.
Where can I rent RTX 4080 and RTX 4090?
7 providers publish RTX 4080 rates and 38 publish RTX 4090 rates on Compute Cafe. Every row links to the provider's own published price - committed-use and reserved rates are excluded.
Full pricing: RTX 4080 · RTX 4090 · all comparisons