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カラム
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365 Posts
Clements said:
Nope, unless you are running the CPU at half the frequency.

DDR = Double Data Rate, so 200 x 2 = 400MHz.
Ohhh, so SDR means Single Data Rate?
 

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PCSX2 Coder
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10,122 Posts
correct, there was no prefix before DDR as there was only 1 rate, everything ran at the set speed, as 1 read = 1hz but DDR utilised both sides of the square wave, so 1 read is done on the rising edge of the wave, and one is done as its falling, so you get 2 reads to 1hz, thats how they managed to get Double Data Rate (DDR)

but you will see even DDR is shown as say PC3200 DDR SD-Ram
 

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NextGenerationGaymulation
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2,775 Posts
Wow, aren't you a genius? The fact that I forgot a word doesn't really matter. The point was that the S stands for synchronous
I couldn't resist, because you were picking on someone else, and made a mistake :D otherwise I'd never do it.

BTW Clements is right about SDR and SD-RAM they're different things.
 
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