Qwen3.8 FLASH Next iq4 VRAM usage

Guys with a lot of VRAM, how much VRAM needed for iq4 to load all layers and with full context for one user? Is 72GB enough or 80GB is the minimum? Is it possible to use only 6x3060 or 3x3090? Or do I need at least 5x5060Ti 16GB?