A video card displays the images on your computer screen. Technology has evolved to where you can install multiple video cards in your computer. There are several reasons why such a setup can be beneficial to your computing experience.
Processing Speed
The technology behind these cards is designed to make them work together to process information faster. This allows you to enable additional visual effects in computer games.
Monitor Options
Since dual video cards perform much faster, you can use much larger display monitors (or multiple monitors) while having the same performance that you would with a single card and a single, smaller monitor.
Product Longevity
Since two cards perform substantially faster than a single card, your miminum performance stays higher for longer. You don't have to replace your cards as often to keep up with more advanced video card applications.
Recovery Options
With a dual-card set up, one of your cards can break down or be damaged without losing video display capability altogether. This gives you more time to obtain a replacement card.
Physics Calculations
Particularly with computer games, one card can be set to show objects on the screen, while the other card can be set to calculate how those objects move and interact with one another.
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