what is DDR for I think the least helpful explanation I could give for
this topic is well it's short for double data rate fourth generation synchronous
Dynamic random access memory and at this point you're probably sitting there
going Dr ramit Linus those are just words I want to know what it does okay
fine let's start with what memory or RAM is actually for in your system let's
imagine for a moment that uh a builder is like a CPU doing work and tools are
like data so a processor's cache is a
very small ount of incredibly fast storage directly on board this is kind
of like the hands of our Builder he can't keep much there but it's really
fast to access next up is RAM or working
memory this is whatever our Builder can store on his belt or nearby as he works
it's slower to get to than cash and he can't keep everything he could possibly
need there but it should be enough to complete whatever is the current task
next up is mass storage which would be your SSD or hard drive this is much
slower than RAM to access kind of like going down the ladder to grab something
from his truck and then if we wanted to keep the analogy going even after it's
worn out it's welcome we could say that off-site storage like over the Internet
is kind of like driving to the store to buy a new tool outright it's that much
slower again so there you have it RAM is
the tools or data bringing it back to computers that your CPU needs to
complete its current task or tasks so the more of it you have the less often
you the Builder will need to go down the ladder to retrieve things and the faster
it is the less downtime time you'll need to deal with every time you realize
you're holding your drill when actually you need a circular saw on to ddr4
specifically it's the next evolutionary step forward in memory technology from
DDR 3 I know go figure right but jck
hasn't been sitting on their thumbs for the past half a decade and this isn't a
small upgrade compared to DDR3 it offers over 20 new features so I think it goes
without saying that it's not backwards compatible and you'll need a new
motherboard and CPU to use it sounds expensive why would I even want that
lonus well first up it's going to improve performance aside from allowing
much higher clock speeds we're talking 3200 MHz stock ddr4 is a bigger change
than it might at first appear to be with some clever architectural Wizardry
designed to improve performance particularly in multicore systems next
up we've got capacity right off the bat ddr4 will be capable of double the
density per die but perhaps equally important is that it can support up to
to eight dies per package instead of four which combined translates into an
effective quadrupling of DDR 3's theoretical maximum capacity of 128 GB
per module yeah 512 GB memory sticks
baby but of course for now that benefit along with some of the others won't be
very applicable to home users a couple more such improvements are the 40% or so
reduction in power consumption due to ddr4 better power management and lower
operating voltage as well as its support for much more advanced error detection
prevention and correction this last one is going to be key as capacities grow to
the point where errors become actually inevitable speaking of inevitable errors
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