War Thunder at 4K is completely spectacular
This is why you need to upgrade.
Free-to-play WWII sim War Thunder has been making plenty of noise in the PC community for a little while, and seeing what it looks like at 4K it isn't hard to work out why.
Reddit's patrunic has posted a couple of shots of a Spitfire and a bomber at super-resolution, showing off some silly levels of detail. Considering it costs nothing, this is something you should probably be looking at.
Download it here.