Yes you can. And typically having a dedicated graphics card will provide much better performance. You will need to have an available PCIe slot & depending on the card you select, a power supply that has one or two 6-pin Supplementary Power Connectors & the necessary wattage. Check out the link below for the specifications of the card you're interested in (or to make a decision on one).
Note that your monitor is connected to a port on the computer chassis (DVI, HDMI, or VGA). You'll need to move the connection to the port(s) provided on your new graphics card when you get it. You'll also need to load the proper drivers for it.
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Yes you can. And typically having a dedicated graphics card will provide much better performance. You will need to have an available PCIe slot & depending on the card you select, a power supply that has one or two 6-pin Supplementary Power Connectors & the necessary wattage. Check out the link below for the specifications of the card you're interested in (or to make a decision on one).
Note that your monitor is connected to a port on the computer chassis (DVI, HDMI, or VGA). You'll need to move the connection to the port(s) provided on your new graphics card when you get it. You'll also need to load the proper drivers for it.
intel HD is part of your CPU
windows can have several graphics cards, you just choose the DEFAULT
one in the BIOS
add whatever you like