What screenshot resolutions can I generate for Live and Screenshots?

Live:
Windows XP/7: 800×600, 1024×768, 1280×800, 1280×1024, 1366×768, 1440×900, 1680×1050, 1600×1200, 1920×1200, 1920×1080, 2048×1536
Windows 8/8.1: 1024×768, 1280×800, 1280×1024, 1366×768, 1440×900, 1680×1050, 1600×1200, 1920×1200, 1920×1080, 2048×1536
Mac OSX: 1024×768, 1280×960, 1280×1024, 1600×1200, 1920×1080

Screenshots:
Windows: 1024×768, 1280×800, 1280×1024, 1366×768, 1440×900, 1680×1050, 1600×1200, 1920×1200, 1920×1080, 2048×1536
Mac OSX: 1024×768, 1280×960, 1280×1024, 1600×1200, 1920×1080