Is 2666mhz the same as 2667mhz?

[lexlam1234]

My mother board says it supports a variety of different ram speeds, including 2667 MHz, but for some reason, I can only seem to find 2666 MHz. Are those two speeds the same thing or should I go with a different speed?

 

[CountMike]

Same thing, it's within error margin and depends how it's calculated with FS/BCLK and it's ratio.