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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 1000:  Multimedia
      9  III  Video Cards
           9  Video Memory

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Synchronous Graphics RAM (SGRAM)
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 Video Card Interfaces
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Multibank DRAM (MDRAM)

MDRAM is an interesting new technology that addresses the inefficiency of using conventional memory on the video card.

Instead of treating the memory as one large chunk, MDRAM addresses it into 32 KB banks that can be accessed separately. Not only will this technology allow video card manufacturers to only install the amount of RAM that is needed to support the frame buffer, it also has some interesting performance advantages.

One of which is called interleaving. This method allows memory accesses to overlap each other without the need for dual porting.


Previous Topic/Section
Synchronous Graphics RAM (SGRAM)
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 Video Card Interfaces
Next Topic/Section

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