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Real vs effective memory clock

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Last response: in Graphics Cards
April 29, 2011 6:02:14 PM

Hi, I have come across these terms while reading some reviews and I wonder what's the difference between them. I know that real clock is 4x lower but I don't understand why.

More about : real effective memory clock

a c 126 U Graphics card
a b } Memory
April 29, 2011 6:22:38 PM

Depends on the memory used, GDDR5 you times the memory speed by 4, GDDR3 you times by 2.... the effective memory speed is the result of the memory frequency X by its relative multiple (which is dependant on the memory type)....

Thats all I know, I guess you'd have to research GDDR architechure to find out more.