RTX 3090 vs RTX 3090 x2

Name: RTX 3090 vs RTX 3090 x2
Creator: DiggTop

GPU AGPU B

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

RTX 309012 verified runs · best 709.5 tok/s

RTX 3090 x26 verified runs · best 240.8 tok/s

Model	RTX 3090	RTX 3090 x2
LFM2.5-1.2B-Instruct-GGUF	709.5 Q4_K_M	—
Qwen3.5-0.8B-MTP-GGUF	476.1 Q6_K_XL	—
NVIDIA-Nemotron-3.5-Lightning-30B-A3B-GGUF	353.7 NVFP4	—
LFM2.5-2.6B-GGUF	305.6 Q4_K_M	—
Qwen3.6-27B-int4-AutoRound	—	240.8 AutoRound INT4
Qwen3.5-4B-MTP-GGUF	240.4 Q6_K_XL	—
Qwen3.8-27B	152.4 EXL3 4.00bpw	219.8 AutoRound INT4 + fp8 KV
NVIDIA-Nemotron-3.5-Lightning-30B-A3B-NVFP4	—	197.0 NVFP4
Qwen3.8-27B-W4A16-AutoRound	—	182.4 W4A16-AutoRound
Qwen3.8-27B-EXL3-3.5bpw	164.6 EXL3-3.5bpw	—
Qwen3.5-9B-MTP-GGUF	164.3 Q6_K_XL	—
Qwen/Qwen3.8-27B	136.8 AWQ-INT4 W4A16	—
Qwen3.8-27B-GGUF	81.9 Q4_K_XL	—
Qwen3.8-Flash-Next-REAP-256-duo-GGUF	—	53.5 Unsloth-Dynamic-Q3_K_XL
Qwen3.8-Flash-Next-GGUF	—	40.1 Unsloth-Dynamic-IQ3_XXS
Ornstein3.6-27B-MTP-NSC-ACE-SABER-GGUF	32.9 Q4_K_M	—

Head-to-head (models tested on both): RTX 3090 0 · RTX 3090 x2 1 · tied 0 · data as of Sep 16, 2026. Full rules: methodology.