Yi 34B has 34B parameters. At FP16 that's 68 GB of raw weights. Quantization shrinks that, but you also need budget for the KV cache (definition), framework overhead, and safety headroom. The rule of thumb: real usable budget on a card is roughly its nameplate VRAM minus 25%. That's how the table below was computed.
Smallest GPU that fits Yi 34B at any quant: M3 Max 96 at FP16/BF16.
Lossless inference needs 68 GB. Pick from 12 cards.
Q3_K_M fits comfortably (15 GB weights).
Open the calculator pre-tuned for Yi 34B: ↗ /calc?model=yi-34b
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