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
2.5 GB
Yes
249.0±est.
Q4
8K default
2.72 GB
Yes
249.0±est.
Q4
32K
4.1 GB
Yes
249.0±est.
FP16
4K
5.83 GB
Yes
68.5±est.
FP16
8K default
6.06 GB
Yes
68.5±est.
FP16
32K
7.44 GB
Yes
68.5±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).
VRAM breakdown at 8K context
Quant
Weights
KV cache
Overhead
Total needed
V100 16GB PCIe VRAM
Q4
1.26 GB
0.46 GB
1 GB
2.72 GB
16 GB
FP16
4.6 GB
0.46 GB
1 GB
6.06 GB
16 GB
Other GPUs that run DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx