DDR memories exist in the market not long ago but have become the most popular memories, bypassing RDRAM memories, especially at a price.
Today, DDR memories are default memories: the SDRAM is gone from the world, and the RDRAM no longer hears a word.
Already today, DDR memories can reach extremely high clock speeds (above 400MHz) and provide excellent performance… But soon DDR memories will give way to their next generation: DDR-II.
DDR II memories will be able to reach speeds of 667MHz, which gives 5.4Gb / Sec bandwidth and in combination with chipsets that support dual-channel memory, the bandwidth will be doubled up to 10.8Gb / sec!
In fact, DDR II memories are already used in video cards, although these cards have not yet appeared on the market (GeforceFX for example), due to the tremendous speed that can be achieved with these memories (there is a difference between the memories on the video card and the "regular" ones) - up to 1GHz, a speed that until recently could only be dreamed of.
So far it sounds good and beautiful - the potential that these memories have is huge and they actually constitute the next leap in the field of home computers; Unfortunately, apart from noting the speed of DDR II chips, the vast majority of people know nothing about them - where did they come from? How are they different from DDR? What are they anyway and where will they lead us?
To correct this injustice, the site x-bit labs published an entire article on the next-generation DDR memories, reading is highly recommended.
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