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Multi-GPU x3 vs RTX 3090 x2

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

Multi-GPU x34 verified runs · best 63.3 tok/s
RTX 3090 x26 verified runs · best 240.8 tok/s
ModelMulti-GPU x3RTX 3090 x2
Qwen3.6-27B60.3 Q6_K_L240.8 AutoRound INT4
Qwen3.8-27B219.8 AutoRound INT4 + fp8 KV
NVIDIA-Nemotron-3.5-Lightning-30B-A3B197.0 NVFP4
Qwen3.6-35B-A3B63.3 APEX-I-Balanced
Qwen3.8-Flash-Next-REAP-256-duo53.5 Unsloth-Dynamic-Q3_K_XL
Ling-3.0-flash43.4 AD-IQ4_XXS
Qwen3.8-Flash-Next40.1 Unsloth-Dynamic-IQ3_XXS
Laguna-S-2.123.9 UD-IQ4_XS

Head-to-head (models tested on both): Multi-GPU x3 0 · RTX 3090 x2 1 · tied 0 · data as of Sep 23, 2026. Full rules: methodology.

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