Yes — the DGX Spark (GH200 480GB) (480 GB LPDDR5X) can run qwen35b-a3b-fable-sft-abliterated. At Q4 with the default 8K context it needs ≈ 20.69 GB VRAM (weights 19.09 GB + KV cache 0.6 GB + 1 GB runtime overhead), which fits within 480 GB. Decode at Q4/8K: ≈ 106.1 tok/s (estimated, batch 1). FP16 (≈ 71.0 GB) also fits, at ≈ 29.2 tok/s (estimated). Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology. Buy DGX Spark (GH200 480GB) on Amazon →
Fit & speed by quant and context
Quant
Context
VRAM needed
Fits?
tok/s (decode)
Q4
4K
20.39 GB
Yes
106.1±est.
Q4
8K default
20.69 GB
Yes
106.1±est.
Q4
32K
22.49 GB
Yes
106.1±est.
FP16
4K
70.7 GB
Yes
29.2±est.
FP16
8K default
71.0 GB
Yes
29.2±est.
FP16
32K
72.8 GB
Yes
29.2±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
DGX Spark (GH200 480GB) VRAM
Q4
19.09 GB
0.6 GB
1 GB
20.69 GB
480 GB
FP16
69.4 GB
0.6 GB
1 GB
71.0 GB
480 GB
Other GPUs that run qwen35b-a3b-fable-sft-abliterated