An Agp Slot Is Normally Used For

When you decide to expand your PC with a new device, you need to understand the expansion slots on your PC’s motherboard so you can determine what type of new device to buy. There are a bunch of different expansion slot standards and variations.

AGP – Accelerated Graphics Port: (AGP) is a slot that is used for a video or graphics card. These slots are found in both Macintosh and Windows based computers. These slots are found in both Macintosh and Windows based computers. It is an official extension for cards that required more electrical power. It is a longer slot with additional pins for that purpose. AGP Pro cards were usually workstation-class cards used to accelerate professional computer-aided design applications employed in the fields of architecture, machining, engineering, simulations, and similar fields.

The two most common slots available on today’s PCs are PCI and PCI-Express:

PCI: The Peripheral Component Interconnect type of slot is the most popular and widely available expansion slot on today’s PCs. It’s normally colored white, though often beige is used. There are 32-bit and 64-bit PCI expansion slots.

PCI–Express: The latest rendition of the PCI standard is PCI-Express. PCI-Express slots are generally colored black or dark gray or sometimes even yellow. They also feature a variety of sizes.

Older expansion standards include

PCI-X: The PCI Extended standard was developed to improve on PCI, but as a standard PCI-Express superseded it. Some older PCs may still feature the PCI-X slot, which looks like a standard PCI slot but is considerably longer.

Be careful not to confuse PCI-X with PCI-Express! They’re different standards, different slots, and different expansion card types.

AGP: The Accelerated Graphics Port slot was designed specifically to handle high-end graphics adapters. It may still be found on older PCs, but today’s systems use PCI-Express expansion slots to handle high-end graphics adapters. AGP slots were often colored maroon and had a hinged hook on one end to help anchor the AGP card.

ISA: The original expansion slot for the PC family was ISA, which simply stood for Industry Standard Architecture (because the expansion slot lacked an official and suitably technical-sounding name). It had two varieties: 16-bit and a longer 16-bit version. An older Windows XP system may still sport an ISA slot, but few (if any) relevant ISA expansion cards are available today.

Sadly, without opening the case, there’s no way to determine what type of slots are present on your PC’s motherboard, let alone whether the slots are available (or empty). The only way to know for certain is to open the case and have a look.

When the PC’s motherboard features a variety of slots, and you have a choice, choose a PCI-Express expansion card first.
Expansion slots are keyed: The edge connector on the expansion card cannot be plugged in backward. Of course, most expansion cards feature a rear slot mount, which means that you have to be determined to plug an expansion card in backward in the first place!
You can look on the back of your PC and examine the slot covers to determine whether a slot is empty. A blank slot cover, however, may not indicate that an expansion slot is available, because some expansion cards may not use the slot cover. Also, some expansion cards are double-wide and may render useless any empty expansion slots next to them.
Even though the expansion slots are all standardized, expansion cards come in different lengths. You can find full-length cards, half-size cards, and others. Smaller PC consoles may have room for only smaller expansion cards, or perhaps some expansion slots are limited to hosting only shorter expansion cards. Knowing this type of information before you buy an expansion card will prove to be a boon to your self-esteem.
PCI-X also featured two sets of voltages for expansion cards: 5 volts and 3.3 volts. Special notches in the expansion cards prevented the wrong slot from being used, but the differing voltages were still an issue for choosing the proper PCI-X expansion card.

Alternatively known as a display adapter, graphics card, video adapter, video board, or video controller, a video card is an expansion card that connects to a computer motherboard. It is used to create a picture on a display; without a video card, you would not be able to see this page. More plainly, it's a piece of hardware inside your computer that processes images and video, some of the tasks normally handled by the CPU. Video cards are used by gamers in place of integrated graphics due to their extra processing power and video ram.

A visual overview of a computer video card

Below are two visual examples of what a video card may look like inside of a computer. First is a picture of an older model AGP video card with multiple types of connections and components on it. Second is an example of a more modern PCI Express video card that you would use with today's gaming computers.

Note

Some motherboards may also use an onboard video card, which means the video card is not a separate expansion card like those shown below.

What Is An Agp Card

Video card ports

The pictures above also help illustrate the types of video ports that are used with video cards. For more information about any of these ports, click on the links below.

In the past, VGA or SVGA was the most popular connection used with computer monitors. Today, most flat panel displays utilize DVI or HDMI connectors.

Video card expansion slots (connections)

A video card expansion slot is where the card connects to the motherboard. In the picture above, the video card is inserted into the AGP expansion slot on the computer motherboard. Over the development of computers, there have been several types of expansion slots used for video cards. Today, the most common expansion slot for video cards is PCIe, which replaced AGP, which replaced PCI, which replaced ISA.

Agp Slot Types

Note

Some OEM computers and motherboards may have a video card onboard or integrated into the motherboard.

Can I install more than one video card?

Yes. Both AMDRadeon (utilizing CrossFire) and NVIDIAGeForce (utilizing SLI) cards are capable of running two or more video cards together.

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