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
68.23 GB
Yes
213.2±est.
Q4
8K default
68.35 GB
Yes
213.2±est.
Q4
32K
69.1 GB
Yes
213.2±est.
FP16
4K
245.12 GB
No
17.8±est.
FP16
8K default
245.25 GB
No
17.8±est.
FP16
32K
246.0 GB
No
17.7±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).