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Radeon AI Pro R9700 x2 vs RTX 3090

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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.

Radeon AI Pro R9700 x23 sourced runs · best 131.4 tok/s
RTX 309018 verified runs · best 709.5 tok/s

Specs and evidence

Radeon AI Pro R9700 x2RTX 3090
VRAM32 GB24 GB
Sourced runs on the board318
Models measured311
Best output tok/s131.4 tok/s709.5 tok/s
Highest measured peak VRAM44.6 GB22.0 GB
Street price (latest snapshot)—$1,720 used

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 (Qwen3.8-27B). On that single data point Radeon AI Pro R9700 x2 records 43.6 tok/s and RTX 3090 records 164.6 tok/s — treat it as one data point, not a ranking.

The measured matrix

ModelRadeon AI Pro R9700 x2RTX 3090
LFM2.5-1.2B-Instruct—709.5 Q4_K_M
Qwen3.5-0.8B-MTP—476.1 Q6_K_XL
NVIDIA-Nemotron-3.5-Lightning-30B-A3B—353.7 NVFP4
LFM2.5-2.6B—305.6 Q4_K_M
Qwen3.5-4B-MTP—240.4 Q6_K_XL
Qwen3.8-27B43.6 Q8_K_XL164.6 EXL3-3.5bpw
Qwen3.5-9B-MTP—164.3 Q6_K_XL
gemma-4-26B-A4B-it131.4 Q8_K_XL—
Qwen3.8-27B-Uncensored51.8 Q8_0—
Qwen3.8-Flash-Next—38.6 EXL3 2.50bpw
Ornstein3.6-27B-MTP-NSC-ACE-SABER—32.9 Q4_K_M
GLM-5.3-Flash—28.1 EXL3 3.05 bpw
DeepSeek-V4.1-Flash—26.0 EXL3 3.0 bpw

Head-to-head (models tested on both): Radeon AI Pro R9700 x2 0 · RTX 3090 1 · tied 0 · data as of Oct 30, 2026. Full rules: methodology.

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

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