Choosing a... Graphics card
You really don’t have to spend much to buy a decent graphics card that can drive multiple monitors. The AMD Radeon R7 250 costs less than £60, for example, and while it isn’t suited to playing the latest games in Full HD, it is perfect for watching videos, browsing the web and playing basic games.
You’ll need to spend more money if you want to play the latest games. A good mid-range gaming graphics card is the Nvidia GTX 950, which is powerful enough to play any of the latest games.
High-powered cards tend to be more expensive, so expect to pay over £300 if you want to play games in Ultra HD at the highest quality settings.
Check that your chosen card has the graphics outputs you need. Only low-end cards now have VGA outputs, but many come with a DVI-to-VGA adaptor. Depending on your monitor, you may also want an HDMI output or even DisplayPort connection.
Bear in mind that AMD’s Eyefinity triple-monitor gaming mode requires at least one DisplayPort monitor, which means your AMD graphics card must have at least one DisplayPort output. Nvidia’s Surround three-monitor mode needs only DVI and HDMI ports.
The amount of memory a card has is important if you want games to look their best at high resolutions. Get a card with 2GB of RAM at the very least, as this should allow you to select the highest-quality textures in games.
A card’s size, noise output and power requirements are the final considerations. Make sure your PC’s case has enough room to accommodate your chosen card. Double-slot cards with large fans tend to be quieter than single-slot cards with small fans but will block other expansion slots on your motherboard.
Also check that your power supply can provide the power the card needs and that it has the right connectors. Many cards require a six-pin PCI Express power connector, and some also need an additional eight-pin connector.