Does RAM speed REALLY matter?

Now that we have RAM modules capable of up to 4266MHz, we need to find out... does high speed RAM ACTUALLY make a difference? Tunnelbear sponsor link: Try Tunnelbear for free at https://www.tunnelbear.com/LTT and save 10% Check out our merch: https://www.designbyhumans.com/shop/LinusTechTips/ Buy DDR4 RAM on Amazon: http://geni.us/0XXs Discuss on the forum: https://linustechtips.com/main/topic/769271-does-ram-speed-really-matter/ Our Affiliates, Referral Programs, and Sponsors: https://linustechtips.com/main/topic/75969-linus-tech-tips-affiliates-referral-programs-and-sponsors Linus Tech Tips Merchandise: http://www.designbyhumans.com/shop/LinusTechTips/ Linus Tech Tips Posters: http://crowdmade.com/linustechtips https://twitter.com/linustech http://www.facebook.com/LinusTech Intro Screen Music Credit: Title: Laszlo - Supernova Video Link: https://www.youtube.com/watch?v=PKfxmFU3lWY iTunes Download Link: https://itunes.apple.com/us/album/supernova/id936805712 Artist Link: https://soundcloud.com/laszlomusic Outro Screen Music Credit: Approaching Nirvana - Sugar High http://www.youtube.com/approachingnirvana Sound effects provided by http://www.freesfx.co.uk/sfx/