Minimum System Requirements
OS: Windows Vista - Service Pack 1 / XP - Service Pack 3
Processor: Intel Core 2 Duo 1.8Ghz, AMD Athlon X2 64 2.4Ghz
Memory: 1.5GB, 16GB Free Hard Drive Space
Video Card: 256MB NVIDIA 7900 / 256MB ATI X1900

Recommended System Requirements
OS: Windows Vista - Service Pack 1 / XP - Service Pack 3
Processor: Intel Core 2 Quad 2.4Ghz, AMD Phenom X3 2.1Ghz
Memory: 2 GB (Windows XP) 2.5 GB (Windows Vista)
18 GB Free Hard Drive Space
Video Card: 512MB NVIDIA 8600 / 512MB ATI 3870

The one major difference with the PC version is the addition of a replay editor. At any time during play offline or on you're able to hit a key, F2 as default, to record a 30 to 60 second clip of gameplay. The length is determined by what's going on onscreen. You can hit F2 as many times as you want, and the game will record overlapping clips, so no worries about interruption. There's no limit on how many clips you can record, just basically as many as you've got room for on your hard drive. Once you think you've captured something you like, you can pop out to the replay editor to start customizing your clips.

The seems like a pretty useful tool, as it lets you do things like cut up and splice together different bits of clips. So if you've got five different explosions and want to string them together into a montage, you just load up each clip, set ins and out and, through a seemingly easy to use interface, string them together. For each clip you can also set a whole range of visual filters and camera angles to get the best view of the action. This way you can show shootings from the point of view of the victim, overlay a green-tinted or sepia toned filter, maybe adjust the audio levels, and add in some custom text for an added effect. Like, when the cop car explodes, you can have text pop up with some creative witticism such as "Look, this cop car is exploding."

In addition to setting your own camera angles, it's also possible to have the camera perform movements while a scene plays out. If you want the view to orbit around Niko Bad Boys II-style while he's unloading clips or set the camera to a shaky handheld setting while he's running and gunning, that's entirely within your power. Then you can slap on a song from the soundtrack for some music accompaniment, touch up whatever else you feel is necessary, and move on to exporting the final file in 640x480, 720p, and 1080p sizes to the Rockstar Social Club where others can take a look at your creation