First or second one better?

https://www.amazon.com/G-SKILL-TridentZ-PC4-24000-Platform-F4-3000C14D-16GTZ/dp/B01AKPOG90/ref=sr_1_1?s=pc&ie=UTF8&qid=1483846872&sr=1-1&keywords=G.SKILL+16GB+%282+x+8GB%29+TridentZ+Series+DDR4+PC4-24000+3000MHz+for+Intel+Z170+Platform+Desktop+Memory+Model+F4-3000C14D-16GTZ

https://www.amazon.com/G-SKILL-TridentZ-PC4-25600-Platform-F4-3200C16D-16GTZ/dp/B017AO1ZA2/ref=sr_1_fkmr2_3?s=pc&ie=UTF8&qid=1483846872&sr=1-3-fkmr2&keywords=G.SKILL+16GB+%282+x+8GB%29+TridentZ+Series+DDR4+PC4-24000+3000MHz+for+Intel+Z170+Platform+Desktop+Memory+Model+F4-3000C14D-16GTZ

The 3200Mhz is better.

/e Just make sure it's compatible with your motherboard.

This post was edited by Ghot on Jan 7 2017 09:44pm

this the mobo i got

https://www.amazon.com/gp/product/B012NH05UW/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

Yeah, either one is fine...the 3200Mhz is a tad faster.

i dont understand the like 40 dollar price difference lol...

Find them on PCpartpicker. Search for them by the model number...aka... F4-3000C14D-16GTZ and F4-3200C16D-16GTZ

It's probably just some Amazon thing. Depends a lot on what retailer is actually selling the RAM through Amazon.