Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.
Fit & speed by quant and context
Quant
Context
VRAM needed
Fits?
tok/s (decode)
Q4
4K
20.88 GB
Yes
322.4±est.
Q4
8K default
20.96 GB
Yes
322.4±est.
Q4
32K
21.43 GB
Yes
322.4±est.
FP16
4K
73.08 GB
No
28.7±est.
FP16
8K default
73.16 GB
No
28.7±est.
FP16
32K
73.62 GB
No
28.3±est.
Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s means the model is far beyond this card (offload-only territory).