800 x 800 px (1:1 aspect ratio) for maximum quality. Minimum Display: 256 x 256 px.
Advice for beginners with 3440x1440 ultra wide monitors : r/Twitch 2560x1080 Twitch 4K Logo 2560x1080 Resolution W...
1920 x 810 px. This resolution maintains the 21:9 aspect ratio while fitting within Twitch’s bitrate limits and matching YouTube's 1080p height scaling. 800 x 800 px (1:1 aspect ratio) for maximum quality