RTX 3090 x1 vs RTX 3090 x8

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.

RTX 3090 x11 verified run · best 28.1 tok/s

RTX 3090 x84 verified runs · best 91.2 tok/s

Model	RTX 3090 x1	RTX 3090 x8
DeepSeek-V4-Flash-0731	—	91.2 FP8_E4M3
GLM-5.3-Flash	28.1 EXL3 3.05 bpw	75.2 AWQ-4bit
keys-DeepSeekV4Flash-Vision-EXP-ablit	—	66.8 FP8

Head-to-head (models tested on both): RTX 3090 x1 0 · RTX 3090 x8 1 · tied 0 · data as of Oct 1, 2026. Full rules: methodology.

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