You will need to check that your current video card (or onboard video on most motherboards) can handle 4K. It probably can. but better to check first. If your budget is $500.00, and you do need a new card, might be time to reconsider 4K?
So while I'm on it, I'll post some negatives for 4 or 5K. They won't be popular, but they are facts that might effect your decision.
- For me, my opinion only, having a reliable monitor with decent size and resolution and VERY GOOD Color (IPS) outweighs the need for 4K by orders of magnitude. If budget isn't a factor, this may not be a huge concern, but once it is, then one should balance carefully.
ie: to get that one spec, don't compromise on what you really need.
- I prefer QHD to 4K, particularly when viewing images from legacy cameras that had as low as 4MP, and crops from more modern cameras. In any case, regardless of image res, I'd much rather have my images interpolated down, than blown up to see them.
On more modern high res images, when I go 100% view it gets me in for more detail.
- My other issue with 4K is I am using an older OS (windows 7) that is not as friendly with scaling text, and regardless of OS, many apps are pants at it too. EG; Photoshop (if you have a licensed legacy version vs. a subscription) is one such app that becomes virtually impossible to use with some high res screens due to inability to scale the text/tools etc. This is true on my Windows 10 install, not just older 7.
I've been very happy with my NON 4K Dell UltraSharp U2715H 27-Inch Screen LED-Lit Monitor ;
And WOW did that price come down with the popularity of 4K!!!