Video Card Replacing an onboard video card or an older card with a new one can be very beneficial, especially for gaming, video editing, and other activities that make use of the video card.
It makes little sense for office PCs on the other hand.
While it is relatively easy to plug in a new video card, you need to be aware of the following:: while it may be tempting to put the meanest video card out there in your PC, a far better solution is to select one that is slightly less powerful but more power and cost efficient.
The two breakthrough cards you may want to look at are Nvidia's GTX 1070 and AMD's Radeon RX 480.
From what I could gather, Nvidia's card is faster than AMD's card, but it costs nearly twice as much.