Can I run NVIDIA-Nemotron-3.5-Bolt-E4B-4GB on an RTX 4090?

Yes

Its Q4_K_M file (6.18 GB) fits in the 21.6 GB an RTX 4090 can use, with room for ≈ 64K tokens of context.

ollama run hf.co/nvidia/NVIDIA-Nemotron-3.5-Bolt-E4B-4GB:Q4_K_M

Files and context on RTX 4090

Each file of NVIDIA-Nemotron-3.5-Bolt-E4B-4GB (and of GGUF versions the site has analyzed), and how much context fits next to it, with the context cache in 16-bit or 8-bit.

NVIDIA-Nemotron-3.5-Bolt-E4B-4GB on other hardware

Popular models that run on RTX 4090

Assumes 90% of the card's memory is usable and at least 4K tokens of context for one conversation, with the context cache in 16-bit unless noted. Fits leaves at least 20% of that memory for context; Tight leaves less.