Can I run imajev-4b on an RTX 4080?

Yes

Its published weights (490 MB) fit in the 14.4 GB an RTX 4080 can use, with room for an unknown amount of context.

Full analysis of imajev-4b Everything that runs on RTX 4080 Get the weights on Hugging Face

hf download mohit67890/imajev-4b

Files and context on RTX 4080

Each file of imajev-4b (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.

File	Size	On RTX 4080	Context (16-bit)	Context (8-bit)
As published	490 MB	Fits	not known	not known
4-bit (estimate)	68.9 MB	Fits	not known	not known

imajev-4b on other hardware

NVIDIA H100Yes
RTX 5090Yes
RTX 4090Yes
RTX 3090Yes
RTX 4080Yes
RTX 5060 Ti 16 GBYes
RTX 3060 12 GBYes
RTX 4060Yes
Mac with 32 GBYes
Mac with 64 GBYes
Mac with 128 GBYes

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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.