Twitch: Dual Format Streaming
Twitch's new Dual Format Streaming feature allows you to broadcast both a traditional horizontal stream for web and a mobile-optimized vertical stream at the same time.
This guide will walk you through how to set up Dual Format streaming on Twitch with XSplit Broadcaster.

Requirements
Requirement | 1080p or lower | 2K (1440p) |
|---|---|---|
NVIDIA GPU | GTX 900 series; GTX 1050, GTX 1060, or GTX 1650 variants; or newer | GTX 1660, GTX 1070, or GTX 1080 series; or RTX 20-series and newer |
AMD GPU | Radeon RX 5500 or newer | Radeon RX 5500 or newer |
Operating system | Windows 10/11 | Windows 10/11 |
Minimum upstream bitrate | 12.5 Mbps | 14 Mbps |
Video tracks | 2 tracks: one 16:9 horizontal and one 9:16 vertical | 2 tracks: one 16:9 horizontal and one 9:16 vertical |
Transcoding | Full quality ladder for both streams | Full quality ladder for both streams |
Vertical canvas | 1080 × 1920 | 1080 × 1920 |
Setting up Dual Format Streaming

On the upper-right drop-down, select Multi Output Mode. Change Output 2's resolution to 1080 x 1920 (16:9).
- Enable Dual Format in Twitch Properties

In your Twitch Properties, enable Enhanced Broadcasting then Dual Format.
- Start your Dual Format stream

Click on the Stream button to start Dual Format streaming.
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Updated on: 25/08/2026
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