RAM short for Random Access Memory, RAM is an essential part of every computer because it holds all of the data your computers currently using. Think of it as your computer. Short term memory. The hard drive is more like the long-term memory. Why is RAM important? How much RAM do you need, and how fast does it need to.

As your Pc’s short term memory RAM stores a moderate amount of information that can be accessed quickly. RAM is about a hundred times faster than even the fastest SSD, your hard drive, but it holds about a hundred times less data and it loses that data when your computer's power goes off.

For Desktop RAM, the most modern type is DDR4; although the older DDR3 is still widely used .Why does the type of RAM keep changing? Why not stick with one type? Well, because part of what makes the new types of RAM faster because they work in different ways, the need for a new motherboard, CPU, and RAM every few years is simply the price we have to pay to take advantage of faster speeds and the lower power use.

 As you can know way back to 1990, we've seen the development of 7 different types of desktop RAM and over time the speed has increased significantly with each new type.

Whenever you turn on your computer applications, load data into the RAM. For example, each tab you have opened in your web browser takes up its own little bit of your RAM. Every program you have open or background operation you have running also takes up a little bit of RAM as long as everything you're doing on the computer, it takes up less room than your total. You're ok if your ra RAM fills up that everything slows down significantly. This is why you may have to occasionally restart your computer to clear the junk out of your RAM and restore performance. For most people, 8Gb of RAM is more than enough to work with, plenty for simultaneously having open tabs in Google chrome running the most demanding modern PC game while streaming   and having a movie playing on all at the same time.
         
It actually takes quite a bit of effort to fill up the amount we recommend for a good mid-range PC. Even 4Gb of RAM is enough most of the time, and we recommend that for lower end PC’s. If you're looking to save a few bucks, some PC enthusiasts will passionately insist that you need at least 16Gb of RAM, but you really only need to consider getting 16Gb or more if you have a specific use in mind, video editing or other production work involving huge files can benefit from 16Gb are even more the average PC’s or just doesn't need that much. If you want to get a bunch of random anyway, it won't hurt anything. You just might be spending more money than necessary. Once again, having more RAM than you need will not improve your computer's performance, but it also won't hurt.

Speed is roughly measured and mega transfers per second. The DDR stands for double data rate. Double is because two transfers happen per clock, so a stick of DDR. The 3 RAM running an 800 megahertz 16 hundred because that can pull off to transfers per clock cycle. It's a common mistake to just refer to DVR 3 1600, 1600 megahertz when t's really 1600 mega transfers. Once you get to a speed of about 1600 or above, performance stops noticeably improving for most tasks. Assuming you're not doing anything especially bandwidth intensive with your computer, it's probably safe to settle on 1600 for DDR 3 for about 2,400 for GDR. DDR4r ram has introduced speeds going up to 40 to 66 so far.

          That doesn't mean you'll notice double the performance over the fastest DDR3 RAM. A recent benchmark showed that the performance differences between PC’s featuring ram at speeds of 2166 and 3,200 with zero to 5% depending on the application. Another set of numbers you'll see associated with RAM performance. Our timings, without getting into excruciating detail, timings relate to the speed of the RAM and the lower numbers mean faster round. They don't make enough difference to be worth spending much money on, but if you have the option between higher or lower timing numbers, choose the lower ones. Last number you'll often see in discussions of RAM is voltage. Voltage plays a much bigger factor in smaller devices like laptops and phones, but even in desktop RAM, it will affect how much heat you're ran produces and how much power it consumes. The Standard Voltage for DDR RAM is 1.5 volts, but some DDR3 sticks running a more efficient 1.3, or a slightly more power hungry, one 1.6.

By comparison, the standard voltage for DDR3 volts and DVR. For us, that's an even more efficient standard of 1.2 volts and small devices. Those extra power savings leave more power available for higher resolution screens or improve battery life
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