Question Advertised RAM speed false?

Lil’bertz

Distinguished
Oct 25, 2014
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18,785
I heard that some RAM stick run 1 step lower than their advertised speed (like advertised speed: 2666MHz - actual speed: 2133MHz)
is it true? or there some truth but you just need to do something in order to get that advertised speed?
 
hi, all rams have several clock profiles to support as much mainboards as possible
if u want to be 100% sure that your new ram will be working at advertised speed, check your mainboard or ram suport page QVL list to see if your ram and mainboard are compatible with eachother to run at full speed