Video Cards, Video Memory By Cam Cummings & Nigel Gray
Video Memory Video Memory is used to store image data for a computer display in order to speed the processing and display of video and graphics images.
Different Types of Video Memory RAM VRAM SD Card
RAM RAM (Random-Access Memory) RAM is computer data storage that can be accessed in any random order
SD Card Secure Digital Card (SD) A non-volatile memory card Digital Camera
VRAM Video Random-Access Memory (VRAM) A dual ported variant of Dynamic RAM (DRAM)
Why is Video Memory significant? 1) Processes images and displays it on the monitor 2) Takes some of the workload for the CPU 3) Allows your computer to run smoothly while multi-tasking
Additional Information The more the better Every PC has at least 250MB (not very much) You can add/remove Video Memory is also provided on a Video Graphics Card
Video Memory Summary Key points: 1) Intermediate storage area between the microprocessor and the display 2) There are different/variations of video memory 3) Helps speed up a computer’s performance 4) Every computer has some 5) The more the better
Video Cards A video card (graphics card) combines video processing and storage onto an expansion card, or integrated onto the motherboard to manage video images for display.
Difference between integrated graphics Some graphics can be Integrated, which means it’s wired onto the circuit (mother) board. Video cards are separated devices that you can buy and install You can update integrated graphics Video Cards are usually more powerful VS
Why they matter Provide capabilities for today’s graphics-intensive software like on Windows 7 or Mac OS X.
Different Kinds of Video Cards PCI (Peripheral Component Interconnect) PCI –E (Peripheral Component Interconnect Express) AGP (Accelerated Graphics Port) All are different kinds of video ports for a computer’s motherboard. The difference between these are the pin holes. AGP Supports PCI/PCI-E Supports
Is one kind better than the other? No It’s a matter of preference. AGP supported graphics cards usually have better support drivers but lack in processing power PCI/PCI-E has better processing power and lack in support drivers
Essential Information Most have a GPU Takes load off: -CPU -Video Memory -Video BIOS Video cards contain their own RAM usually in 128MB or 250MB
Video Card Summary Video cards are an add-on to a computer’s motherboard that processes images and display them. It helps process video memory for the CPU, RAM, and video BIOS so it won’t bog down the computer.
Refrences http://www.creativecommon.com Emerge with Computer Concepts http://www.wikipedia.com http://www.flickr.com