DGX Spark x1 vs RTX 3090 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 x13 verified runs · best 72.0 tok/s

RTX 3090 x41 verified run · best 145.8 tok/s

Model	DGX Spark x1	RTX 3090 x4
Qwen3.8-Flash-Next	72.0 EXL3	145.8 W4A16+FP8-KV

Head-to-head (models tested on both): DGX Spark x1 0 · RTX 3090 x4 1 · tied 0 · data as of Sep 18, 2026. Full rules: methodology.

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