Hi, this is Wayne again with a topic “What is DDR4 as Fast As Possible”.
What is ddr4, 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 dram it 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 a builder is like a cpu doing.
Work and tools are like data, so a processor’s cache is a very small amount 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’s. 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 down 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 ddr3. I know go figure right, but jdec 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 linus? Well, first up it’s going to improve performance aside from allowing much higher clock speeds we’re talking! 3 200 megahertz 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 multi-core 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 eight dies per package instead of four, which combined translates into an effective quadrupling of ddr3 theoretical maximum capacity of 128 gigabytes per module.
Yeah 512 gigabyte 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.
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