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
18.29 GB
Yes
30.6±est.
Q4
8K default
20.95 GB
Yes
30.6±est.
Q4
32K
36.91 GB
Yes
30.6±est.
FP16
4K
56.86 GB
No
10.3±est.
FP16
8K default
59.52 GB
No
9.4±est.
FP16
32K
75.48 GB
No
5.8±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).