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Can a RTX 5090 32GB run Ornith-1.5 35B-A3B (MoE)?

Yes. Ornith-1.5 35B-A3B (MoE) fits in fast memory on RTX 5090 32GB at Default (24.8 GB needed, 31.5 GB usable), about 273 tok/s (estimate).

Hardware: RTX 5090 32GB · Model: Ornith-1.5 35B-A3B (MoE)

RTX 5090 32GB has 32 GB of VRAM and 1792 GB/s of memory bandwidth. The checker holds back 0.5 GB of VRAM for the driver and assumes 16 GB of system RAM, so fast memory usable by Ollama is 31.5 GB. Partial offload may also use 60% of that system RAM. Ornith-1.5 35B-A3B (MoE) (35B, 3B active, Ornith) at Default is a 23 GB download and needs 24.8 GB with headroom for about 8k tokens.

Best quantDefault
Download size23 GB
Memory needed24.8 GB
Usable fast memory31.5 GB
Fitfits in fast memory
Estimated speed~273 tok/s (estimate)
Commandollama run ornith-1.5:35b
Open RTX 5090 32GB in the checker

Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.

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