Version information does not differ from that above. There are binaries available from http://www.imagemagick.org/ so that you can load this extension on Windows without need for a compiler.
PHP >= 5.1.3 and ImageMagick >= 6.2.4 is required. The amount of file formats supported by Imagick depends entirely upon the amount of formats supported by your ImageMagick installation. For example, Imagemagick requires ghostscript to conduct PDF operations.
Unfortunately the Windows binaries downloaded from the Imagemagick website did not work with PHP 7. It seems that they used Visual C++ 2013 to compile imagemagick while PHP used Visual C++ 2015. There is another build of imagemagick which worked with PHP 7 here: http://windows.php.net/downloads/PECL/deps/