Your graphics processor is a dedicated card which handles the graphics work for your computer. Depending on your CPU and motherboard, you can also use integrated graphics, in which your CPU and RAM will be used for graphics processing.
This will be significantly slower than a dedicated graphics card, so if you plan on gaming or doing video work you will need a dedicated graphics card.
The graphics card connects to your computer through a PCI slot, which connects to the back of the case where you can connect your monitors and video outputs.
Graphics cards are made by Nvidia and AMD; however, you will notice that they are available from various hardware brands. The reason for this is that Nvidia and AMD design the graphics card’s hardware and architecture and then sell the design to various manufacturers.
The hardware manufacturers put the cards into production. In addition, they may change the fan layout or the casing on the card, but it is still the same processors and will function exactly the same. It all comes down to which company you trust the most, or which one is having a sale.
Note: LGA 2011 does not include integrated graphics.