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what is DDR for I think the least helpful explanation I could give for

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this topic is well it's short for double data rate fourth generation synchronous

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Dynamic random access memory and at this point you're probably sitting there

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going Dr ramit Linus those are just words I want to know what it does okay

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fine let's start with what memory or RAM is actually for in your system let's

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imagine for a moment that uh a builder is like a CPU doing work and tools are

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like data so a processor's cache is a

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very small ount of incredibly fast storage directly on board this is kind

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of like the hands of our Builder he can't keep much there but it's really

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fast to access next up is RAM or working

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memory this is whatever our Builder can store on his belt or nearby as he works

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it's slower to get to than cash and he can't keep everything he could possibly

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need there but it should be enough to complete whatever is the current task

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next up is mass storage which would be your SSD or hard drive this is much

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slower than RAM to access kind of like going down the ladder to grab something

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from his truck and then if we wanted to keep the analogy going even after it's

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worn out it's welcome we could say that off-site storage like over the Internet

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is kind of like driving to the store to buy a new tool outright it's that much

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slower again so there you have it RAM is

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the tools or data bringing it back to computers that your CPU needs to

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complete its current task or tasks so the more of it you have the less often

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you the Builder will need to go down the ladder to retrieve things and the faster

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it is the less downtime time you'll need to deal with every time you realize

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you're holding your drill when actually you need a circular saw on to ddr4

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specifically it's the next evolutionary step forward in memory technology from

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DDR 3 I know go figure right but jck

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hasn't been sitting on their thumbs for the past half a decade and this isn't a

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small upgrade compared to DDR3 it offers over 20 new features so I think it goes

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without saying that it's not backwards compatible and you'll need a new

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motherboard and CPU to use it sounds expensive why would I even want that

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lonus well first up it's going to improve performance aside from allowing

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much higher clock speeds we're talking 3200 MHz stock ddr4 is a bigger change

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than it might at first appear to be with some clever architectural Wizardry

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designed to improve performance particularly in multicore systems next

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up we've got capacity right off the bat ddr4 will be capable of double the

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density per die but perhaps equally important is that it can support up to

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to eight dies per package instead of four which combined translates into an

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effective quadrupling of DDR 3's theoretical maximum capacity of 128 GB

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per module yeah 512 GB memory sticks

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baby but of course for now that benefit along with some of the others won't be

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very applicable to home users a couple more such improvements are the 40% or so

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reduction in power consumption due to ddr4 better power management and lower

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operating voltage as well as its support for much more advanced error detection

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prevention and correction this last one is going to be key as capacities grow to

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the point where errors become actually inevitable speaking of inevitable errors

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you in the bathroom or maybe that was me someone's watching you shave I mean what

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anyway that's pretty much it head on over to dollarshaveclub.com and join the to

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start shaving time and shaving money thanks for watching guys like this video

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if you liked it dislike it if you disliked it leave a comment if you have suggestions for future episodes of

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fastest possible or just anything to say to us about this particular one I think

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that's pretty much it don't forget to subscribe if you haven't already and I'll see you again next time