What does this statement about the dram speed really mean?

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Ronshere

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Mar 25, 2014
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I was looking at some Panram Dram on newegg and I noticed this statement in the description that made me wonder if the dram is true 1600mhz or actually a lower speed dram that overclocks safely to 1600mhz.
"PUD31600C98GNJK is a 8GB DDR3 desktop module that operates at speeds up to 1600 MHz"

So how am I to understand this? Is it true 1600mhz or just cheaper overclockable ram being labeled as 1600??
Is there a way to know what the dram modules really are?
 
Solution
Tradesman1
It's made with memory chips that are have binned to run 1600. When the actual chips (ICs are made), say 1333 they are binned/rated to effectively run at data rates of 1333, 1600, 1866, etc. and then sold that way. The actual stick manufacturers, say buy those binned at 1600, then take them and test to further bin them for higher data rates before making the actual sticks which may end up being 1600, 1866, 2133, 2400 or whatever. Most manufacturers don't openly reveal the actual chips used in a given line of DRAM, but they are often identifiable by the DRAM serial number or other, an example here:

http://www.overclockers.com/forums/showthread.php/755487-DDR3-Memory-Chip-Information-Sources and here:

http://ramlist.i4memory.com/ddr3/
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Tradesman1

Tradesman1

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Jun 5, 2013
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It's made with memory chips that are have binned to run 1600. When the actual chips (ICs are made), say 1333 they are binned/rated to effectively run at data rates of 1333, 1600, 1866, etc. and then sold that way. The actual stick manufacturers, say buy those binned at 1600, then take them and test to further bin them for higher data rates before making the actual sticks which may end up being 1600, 1866, 2133, 2400 or whatever. Most manufacturers don't openly reveal the actual chips used in a given line of DRAM, but they are often identifiable by the DRAM serial number or other, an example here:

http://www.overclockers.com/forums/showthread.php/755487-DDR3-Memory-Chip-Information-Sources and here:

http://ramlist.i4memory.com/ddr3/
 
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