Hello, advise please a video card to buy for playing modern games. My budget is 450-500$?

What games do you have in mind and what is the spec of the rest of your rig ??

As well as what quality do you expect to play at? Low quality will still get you decent graphics, but high quality will get almost complete immersion. What do you want to do with your graphics?

Just want to play games at as much as possible best quality settings

I am partial to Nvidia Geforce cards. The gtx 970 seems to be around the $400 mark, probably find the next step around the $500 mark.

Also depends on where you are and where you can get computer components. Some places are cheaper then others, and some brands too.

Also it doesnt matter what the video card can do if the rest of the system cant support it. What are your system specs ?