· What’s a Graphics Card?
– A modern graphics card is a circuit board with memory and a dedicated processor.
– Converts digital information into the pixels to display it on the monitor.
· Frame Buffers
– The card simply holds a frame of information that is sent to the screen.
– Pixel updates are done by the microprocessor.
– Slow.
· Graphics accelerators with GPU
– Pixel updates are done by the GPU.
– GPU is optimised for graphics operations.
– Reduces load on the main processor.
Bus Interfaces PCI
· Peripheral Components Interconnect
Bus Interfaces AGP
· Accelerated Graphics Port
On board Graphics Accelerator
· On board graphics accelerators share system memory
· Wide range of cards
– 3D Acceleration.
– Video Memory.
· Modern day Graphics cards are more powerful than Pentium processor!
· Expensive component of your Computer.
· Choosing a Graphic card
– PCI or AGP.
– Integrated or Add-on card.
– Non-Accelerated or 3D accelerated.
– Cost.
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