Home > Accelerated Graphics Port

1 Initial Development

AGP dynamically allocates the PC's normal RAM to store the screen image and to support texture mapping, z-buffering and alpha blending. RAM used in this manner is referred to as the AGP Aperture.

AGP originated from Intel, and it was into a chipset for the Pentium II microprocessor in 1997. AGP cards generally slightly exceed PCI cards in length. AGP became common in mainstream systems in 19981998 was a common year starting on Thursday (see link for calendar), and was designated the International Year of the Ocean''. Events January January 1998 A massive ice storm, caused by El Nino, strikes New England, southern Ontario and Quebec, resulting, but PCI video cards are still being produced today.

The first version of AGP, now called AGP 1.0 or AGP 1x, uses a 32-bit32-bit is a term applied to processors, and computer architectures which manipulate the address and data in 32- bit chunks. It is also a term given to a generation of computers where 32-bit processors were the norm. The range of integer values that can be channel operating at 66 MHz with 1.5 V or 3.3 V signaling. This results in a maximum data rate for an AGP 1x slot of 266 megabyteA megabyte is a unit of measurement for computer storage, memory and information; while its exact definition varies, it is in theory equal to one million bytes. The symbol for megabyte is MB (note B for Byte, lowercase b would mean bit). Three definitionss per second. In comparison, a standard 32-bit 33 MHz PCI bus (which can be composed of one or more slots) is limited to 133 MB/s.

2 Newer Versions of AGP

• AGP 2x, using a 32-bit32-bit is a term applied to processors, and computer architectures which manipulate the address and data in 32- bit chunks. It is also a term given to a generation of computers where 32-bit processors were the norm. The range of integer values that can be channel operating at 66 MHz double pumpedIn computing, double pumped (also known as dual-pumped, double data rate and double transition) refers to a computer bus design that transfers data on both the rising and falling edges of the clock signal, effectively doubling the data transmission rate w to an effective 133 MHz resulting in a maximum data rate of 533 megabytes per second; signaling voltages the same as AGP 1x;
• AGP 4x, using a 32-bit channel operating at 133 MHz double pumped to an effective 266 MHz resulting in a maximum data rate of 1066 megabytes per second; 1.5 V signaling;
• AGP 8x, double pumped at 266 MHz to give a maximum of 2133 megabytes per second; 0.8 V signaling.

In addition, AGP Pro cards of various types exist. They require more power and are often longer than standard AGP card (though they only connect to one AGP slot). These cards are usually used to accelerate the professional computer-aided design applications employed in the fields of architecture, machining, engineering, and similar fields.