click any column header to sort

TTS Bench — Speed — 2026-06-02_1227

Rig: windows-5090 — AMD Ryzen 9 9950X3D 16-Core Processor (16C) · NVIDIA GeForce RTX 5090 32GB · 126 GB RAM · Windows 11

Label: cloning · chris_hemsworth_15s · openvoice — ref chris_hemsworth_15s.wav

TTFA = time to first audio (ms; lower is better). RTFx = realtime speed (× realtime; higher is better; e.g. 10× means 10 sec of audio generated per 1 sec of compute). Cold = first run after process start; warm = subsequent runs.

Speed winners

Fastest (this cloning run): OpenVoice v2 (cuda) — 16.73× warm RTFx, 361ms warm TTFA

Model	Device	TTFA cold	TTFA warm	RTFx cold	RTFx warm	Peak RAM	Peak VRAM	Size	Released
OpenVoice v2	cuda	1.72s	361ms	3.61×	16.73×	2.65 GB	1.35 GB	~100M	Apr 2024
OpenVoice v2	cpu	2.60s	1.44s	2.23×	4.25×	2.78 GB	—	~100M	Apr 2024