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GPU Core Clock and Memory Clock

Can anyone please explain why I see different numbers in memory clock.

In gpu-z sapphire r9 290 tri x clocks are gpu clock is 1000mhz and memory clock si 1300mhz.
In some website it is saying 5.2ghz memory clock.

How is the conversation of mhz to ghz? It should be 1.3ghz right?
3 answers Last reply Best Answer
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  1. 1,3GHz x 4 is the total memory clock
  2. Best answer
    yeah gddr5 is 4x the memeory clock. DDR3 is 2x. 1300MHz GDDR5 is 4x1300=5200MHz.
  3. oh thanks.
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