IE 11 has been available for Windows 8.1 but soon they will be rolling out IE 11 to Win 7 customers.
Among other things IE 11 includes; Hardware-accelerated 3D Web graphics, Integrated HTML5 video, Improved debugging, faster Javascript and lower CPU usage.
Microsoft to make IE 11 available for Windows 7.
Internet Explorer 11 (IE11) is available worldwide in 95 languages for download today. We will begin automatically updating Windows 7 customers to IE11 in the weeks ahead, starting today with customers running the IE11 Developer and Release Previews. With this final release, IE11 brings the same leading standards support--with improved performance, security, privacy, and reliability that consumers enjoy on Windows 8.1—to Windows 7 customers.
Among other things IE 11 includes; Hardware-accelerated 3D Web graphics, Integrated HTML5 video, Improved debugging, faster Javascript and lower CPU usage.
Microsoft to make IE 11 available for Windows 7.