Specifications
Computer Architecture and Maintenance (G-Scheme-2014)
monitors, or to  gain speed, a separate video card is still recommended. Graphics 
accelerator cards are especially useful for gaming.
SLI and Crossfire Compatibility
This is of special importance to high-end gamers or others who are using 3D graphics. 
SLI and Crossfire are the methods for using multiple video cards together to increase 
performance and quality. Most boards will have one or the other, although there are a 
few boards which are compatible with both.
AGP –Accelerated Graphics Port
Q.What is AGP state its Features?
Ans.  The Accelerated Graphics Port (also called Advanced Graphics Port) is a high-
speed   point-to-point   channel   for   attaching   a   graphics   card   to   a   computer’s 
motherboard primarily to assist in the acceleration of 3D computer graphics.
AGP is often referred to as a bus’; however, this is a misnomer- a single AGP controller 
is only capable of controlling a single device.AGP is currently being phased out in
favor of PCI Express. The ACP slot is designed to acceptan AGP video card. This 
bus is   in fact a   port since it   connects only two  devices.  Many   motherboards with 
embedded video do not include an AGP slot. That means that upgrading the video 
adapter in such a configuration requires using a PCI video card.
Accelerated Graphics Port) A high-speed 32-bit port from Intel for attaching a display 
adapter to a PC. It provides a direct connection between the card and memory, and 
only one AGP  slot is  on the  motherboard. AGP was introduced as   a higher-speed 
alternative  to  PCI  display  adapters,   and   it   freed   a   PCI   slot  for  another  peripheral 
device. The brown AGP slot is slightly shorter than the white PCI slot and is located 
about an inch farther back. AGP was superseded by PCI Express.
Advantage of AGP over PCI
As computers increasingly became graphically oriented, successive generations 
of graphics adapters began to push the limits of PCI, a bus with shared bandwidth. 
This led to the development of AGP, a "bus" dedicated to graphics adapters.
The primary advantage of AGP over PCI is that it provides a dedicated pathway 
between the slot and the processor rather than sharing the PCI bus. In addition to a lack 
of contention for the bus, the direct connection allows for higher clock speeds. AGP 
also uses sideband addressing, meaning that the address and data buses are separated 
so the entire packet does not need to be read to get addressing information. This is 
Prepared By – Prof. Manoj.kavedia (9860174297 – 9324258878 ) (www.kavediasir.yolasite.com)
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