The graphics card is the main component of any computer. It is responsible for displaying graphical information on your PC monitor. It makes the most sense to buy a graphics card with GDDR5 memory for any type of video card (even budget ones). It is worth considering the characteristics of all the Hardware when choosing a graphics card.
Video cards are developed by only two manufacturers, AMD - Radeon, and Nvidia - come under the GeForce brand name. Both manufacturers at the moment are almost on equal footing, so you can not say who is better.