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
5.4 GB
Yes
127.3±est.
Q4
8K default
5.62 GB
Yes
127.3±est.
Q4
32K
6.93 GB
Yes
127.3±est.
FP16
4K
16.42 GB
No
56.0±est.
FP16
8K default
16.64 GB
No
54.6±est.
FP16
32K
17.95 GB
No
46.9±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).