Polygon counts
The first constraint is polygon counts. Polygon counts are always important for games, because different platform have different polygon counts limit. More polygon there are, the better and details the model looks, but also the more polygon the model are, the bigger the file it gets. That's why different platform can only support limited games, because some platform have powerful graphics card and RAM, some have less RAM and less powerful graphics card.
Normally now modern day PC have strong powerful graphic card and they can support high graphics games like Titian fall, Watch Dog and all modern game platform games. Some powerful gaming PC can even support more higher graphic games and they will have no problem running modern platform games. Powerful gaming PC are more powerful than modern game platform such as PlayStation 4 and Xbox One. PlayStation 4 can support 1.6 billion polygons and that it's a lot for game console and for powerful PC can support more than 1.6 billion polygons. That's why when you playing a game, for example Tomb Raider or Assassin's Creed. You can simply see the differences between them.
Pictures below shows the comparison between different platform. As you can see that in the comparison both PC render are more detail and lighter than the modern game console. PC are always the strongest platform all time. There are even question about the modern day game console, saying that they might not be powerful enough to support future games.
Tomb Raider Comparison |
Link to Tomb Raider comparison video:
https://www.youtube.com/watch?v=P0PW_VGtKAI
Assassin's Creed 4 Comparison |
Modern day mobile phone such as iPhone and Samsung, they can support games with around or less than 7000 polygon counts limit. That is a lot for a mobile phone, for a platform that you can take with you anywhere anytime.
GTA San Andreas iPhone version |
Picture here shows a game called GTA San Andreas in iPhone. This game was first release on PlayStaion 2 back in 2004. Now you can play this game on iPhone. It's amazing how time past. Before back in 2004, we can only run this type of games in PlayStation 2 or Xbox, but now we can play it in a phone. Technology keep improve by time, sooner we can run now modern games like Watch Dog on the mobile phone and in the future we can even run more higher graphic games in game console and PC.
File Size
File size are very important, special in games. Modern game console run games on a disk. That means they have limited storage to put the game in, sometimes they even have two disk to install the game,because of the amount of the information and one disk is not enough. That's modern games always have polygon counts limit and have all the file size to the minimum without changing the quality of the work. That is also why why games looks different in different platform and it's also why when run the game on PC always looks better than game console, because PC can download the information from the net straight ahead, unlike game console which have all the information install into a limited storage disk.
Render Time
Render time is especially important for companies like Pixar. A company like them which make 3D movies, they can spend years just to render their latest movie. Usually rendering takes a very long time, but rendering speed can depends on the PC. If the PC have powerful GPU and CPU can reduce the rendering time. Another way of reduce the are change the option of rendering, for example like outcome format etc.