Before you click "download," you need to understand that there are two distinct versions available for PC.

The star of the show. When you land a devastating shot (heart, lung, liver, or testicle), the camera follows the bullet in real-time. You see skin, muscle, and bone stretch and shatter. It is grotesque, gratuitous, and glorious. The remaster smooths the frame rate during these sequences, so no more chop.

Since you are downloading the Remastered version, here are the official requirements.