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I want to buy 1 single piece of 8 GB ram for motherboard GA-B75M-D3H . I've found one G.Skill one(here) which shows : DDR3-1600/PC3-12800.

If you scroll down a bit you'll find:

 Frequency  1333 MHz (Specified), 1600 MHz (Test) 
    DDR3 SDRAM Memory

I'm confused by seeing 1600 Mhz (Test) ... whether it's original frequency is 1333 or 1600. I think I shoud prefer those having frequency of 1600 than those having lower than this.

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up vote 0 down vote accepted

Basically they tested that ram bar and its speed shown as 1600mhz.

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