Can I use 1600 mhz RAM with 1333mhz RAM ?

Han Xing

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Oct 31, 2014
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I am currently have 4x 2 1600mhz RAM DDR3 and I got another 4x2 DDR RAM from my friend but it's 1333mhz, can I use it together with my current one ?
 

Han Xing

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Oct 31, 2014
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4,630

so 8gb with 1600 mhz and 16 gb with 1333mhz which one is better ? the 16gb one ?