Best sourced output tok/s per model (single-stream generation) — engine and version, quantization, context and a source link on every row. Hover a value for the quant.
DGX Spark52 sourced runs · best 86.8 tok/s
RTX PRO 6000 Blackwell x49 verified runs · best 231.6 tok/s
Specs and evidence
DGX Spark
RTX PRO 6000 Blackwell x4
VRAM
128 GB
384 GB
Sourced runs on the board
52
9
Models measured
9
1
Best output tok/s
86.8 tok/s
231.6 tok/s
Highest measured peak VRAM
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Street price (latest snapshot)
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Sourced rows only. Peak VRAM is recorded by the person who ran the benchmark, so it is a floor for what the card can hold, not a specification. Price snapshots.
Head-to-head
Only one model has been measured on both cards (DeepSeek-V4.1-Flash). On that single data point DGX Spark records 47.0 tok/s and RTX PRO 6000 Blackwell x4 records 231.6 tok/s — treat it as one data point, not a ranking.