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
5.94 GB
Yes
40.2±est.
Q4
8K default
6.7 GB
Yes
40.2±est.
Q4
32K
11.26 GB
Yes
40.2±est.
FP16
4K
16.96 GB
No
15.7±est.
FP16
8K default
17.72 GB
No
14.4±est.
FP16
32K
22.28 GB
No
9.1±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).