Tom's Hardware > Forum > Motherboards & Memory > Memory > Why do DRAM chips only go up to 200Mhz???

Why do DRAM chips only go up to 200Mhz???

Forum Motherboards & Memory : Memory - Why do DRAM chips only go up to 200Mhz???

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NewToATI   02-12-2007 at 09:27:24 AM

Hi all,

I've just been wondering why Dram chips have a maximum clock speed of 200Mhz, ie. DDR@400 = two 200Mhz chips multiplexed onto a high frequency bus, DDR2@800 = four 200Mhz chips multiplexed onto a high frequency bus.

Where did this 200Mhz limit come from? and how come CPU's can go up to 3Ghz+ and Dram is stuck at 200Mhz, seems kind of ridiculous.

Any one know why?

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