RTX 3090 x2 vs RTX 5070 12GB + RTX 5060 Ti 16GB x2

Best sourced output tok/s per model (single-stream generation) — engine and version, quantization, context and a source link on every row. Hover a value for the quant.

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

RTX 3090 x27 sourced runs · best 240.8 tok/s

RTX 5070 12GB + RTX 5060 Ti 16GB x21 verified run · best 66.0 tok/s

Specs and evidence

	RTX 3090 x2	RTX 5070 12GB + RTX 5060 Ti 16GB x2
VRAM	24 GB	12 GB
Sourced runs on the board	7	1
Models measured	6	1
Best output tok/s	240.8 tok/s	66.0 tok/s
Highest measured peak VRAM	42.9 GB	—
Street price (latest snapshot)	—	—

Sourced rows only. Peak VRAM is recorded by the person who ran the benchmark, so it is a floor for what the card can hold, not a specification. Price snapshots.

Head-to-head

Only one model has been measured on both cards (Qwen3.8-Flash-Next). On that single data point RTX 3090 x2 records 40.1 tok/s and RTX 5070 12GB + RTX 5060 Ti 16GB x2 records 66.0 tok/s — treat it as one data point, not a ranking.

The measured matrix

Model	RTX 3090 x2	RTX 5070 12GB + RTX 5060 Ti 16GB x2
Qwen3.6-27B	240.8 AutoRound INT4	—
Qwen3.8-27B	219.8 AutoRound INT4 + fp8 KV	—
NVIDIA-Nemotron-3.5-Lightning-30B-A3B	197.0 NVFP4	—
MiniCPM-V 4.7-35B-A3B	172.2 int4	—
Qwen3.8-Flash-Next	40.1 Unsloth-Dynamic-IQ3_XXS	66.0 IQ3_S
Qwen3.8-Flash-Next-REAP-256-duo	53.5 Unsloth-Dynamic-Q3_K_XL	—

Head-to-head (models tested on both): RTX 3090 x2 0 · RTX 5070 12GB + RTX 5060 Ti 16GB x2 1 · tied 0 · data as of Oct 20, 2026. Full rules: methodology.

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