Pc's that can play games with no lag?

I want to play games like dayz, minecraft, tf2, horror games, gmod, and other steam games. The quality doesn't have to be that great just no lag. Also i do not want to build one just buy one and add a couple things to it. Under $400

Guest

Under 400 will get you a pretty low end machine. Still framerate and lag are two different things. Lag comes from your connection, and from the game's server. Nothing you can personally do about lag other than making sure you are the only one connected to your internet. As for framerate, well, you'll need a pretty nice CPU, graphics card, and plenty of ram if you want to play them games anyway. If you can only spend 400, just buy the best thing you can find.

NettoSaito