DGX Spark x3 vs Spark x4

GPU AGPU B

Best verified output tok/s per model (single-stream generation). Hover a value for the quant.

Verified data on this pair is thin — most of the board is still pending review. Submit your own run and help fill the matrix: one prompt, three steps, no downloads.

DGX Spark x31 verified run · best 46.0 tok/s

Spark x41 verified run · best 30.2 tok/s

Model	DGX Spark x3	Spark x4
DeepSeek-V4.1-Flash	46.0 EXL3 3.5bpw	30.2 EXL3

Head-to-head (models tested on both): DGX Spark x3 1 · Spark x4 0 · tied 0 · data as of Sep 23, 2026. Full rules: methodology.

Related reading: RTX 5090 vs 3090 · quantization · Value index · Full board