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
18.81 GB
Yes
35.3±est.
Q4
8K default
21.55 GB
Yes
35.3±est.
Q4
32K
37.99 GB
No
42.3±est.
FP16
4K
58.54 GB
No
4.9±est.
FP16
8K default
61.28 GB
No
4.5±est.
FP16
32K
77.72 GB
No
2.8±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).