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
5.53 GB
Tight
10.5±est.
Q4
8K default
6.03 GB
Tight
10.5±est.
Q4
32K
9.03 GB
No
6.4±est.
FP16
4K
15.9 GB
No
0.5±est.
FP16
8K default
16.4 GB
No
0.5±est.
FP16
32K
19.4 GB
No
0.4±est.
Fits = weights + KV(ctx) + 0.5 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).