Difference between Rams

Myntekt

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Aug 7, 2013
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Hello there! I am thinking of buying a new RAM set for my computer, and I'm kind of confused between all of them.. What is the difference between for example, 1600mhz and 1866mhz? Or 1600mhz and 1600mhz ECC?

Here's a picture showing a lot of different ram subtypes that I really do not understand the difference:

2ik8n5l.jpg


(That screenshot was taken from a webstore)

Thank you