COMPARE / RTX 5080 VS RTX 5090
RTX 5080 vs RTX 5090
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 5080
$0.090/hr
SpotGPUs · median $6.70 · 6 providers
CHEAPEST RTX 5090
$0.190/hr
SpotGPUs · median $0.70 · 26 providers
CHEAPER RIGHT NOW
RTX 5080
live panel, 2026-09-27
| RTX 5080 | RTX 5090 | |
|---|---|---|
| MAKER | NVIDIA | NVIDIA |
| ARCHITECTURE | Blackwell | Blackwell |
| LAUNCHED | 2025 | 2025 |
| MEMORY | 16 GB GDDR7 | 32 GB GDDR7 |
| MEMORY BANDWIDTH | 960 GB/s | 1.79 TB/s |
| TENSOR COMPUTE | 56.3 TFLOPS FP32; 5th-gen tensor cores with FP8/FP4 support | Blackwell tensor cores with FP4; ~3,352 AI TOPS (FP4 sparse) |
| POWER DRAW | 360 W | 575 W |
| INTERCONNECT | PCIe 5.0 x16 | PCIe 5.0 x16 |
HOW TO CHOOSE
RTX 5080 vs RTX 5090
The 5090 doubles the memory to 32 GB with nearly double the bandwidth. For anything past 13B it is the only consumer answer; below that line the 5080 is cheaper per hour.
Workload fit
RTX 5080: small-model inference, fine-tuning, image and video generation. RTX 5090: small-model inference, fine-tuning, fp4 experimentation.
RTX 5080 VS RTX 5090 - FAQ
Which is cheaper to rent, RTX 5080 or RTX 5090?
By today's published on-demand rates: RTX 5080 starts at $0.090/GPU/hr (median $6.70, 6 providers) and RTX 5090 starts at $0.190/GPU/hr (median $0.70, 26 providers). The cheapest live listing is the RTX 5080 at SpotGPUs. Figures recompute from the panel on every refresh.
RTX 5080 or RTX 5090 - which should I rent?
RTX 5080: The RTX 5080 is Blackwell's upper-mainstream consumer card: GDDR7 bandwidth and FP4/FP8 tensor support in a 16 GB, 360 W package. RTX 5090: The RTX 5090 is the consumer Blackwell flagship: 32 GB of fast GDDR7 (1.79 TB/s), FP4/FP8 tensor support, and roughly 4090-plus-30% real-world AI throughput. The side-by-side spec table and live price rows above give the full picture.
Where can I rent RTX 5080 and RTX 5090?
6 providers publish RTX 5080 rates and 26 publish RTX 5090 rates on Compute Cafe. Every row links to the provider's own published price - committed-use and reserved rates are excluded.
Full pricing: RTX 5080 · RTX 5090 · all comparisons