What is RAM? And why more of them makes the device more powerful?

RAM, which stands for Random Access Memory, is a common term we come across frequently these days. However, for the average person, it might just seem like another number in the specifications list when a new phone, tablet, or computer is introduced. So, what is RAM, and why is it important? How does having more of it make a device more powerful? We'll answer all these questions and more in this informative article, so you can make an informed decision when choosing your next device.

What exactly is RAM, and how does having more of it contribute to boosting the device's performance?

First | What is Random Access Memory (RAM) and its Uses?

As indicated, Random Access Memory is symbolized by the term RAM, which stands for Random Access Memory. This memory stores data in binary form, yet it serves a different purpose than storage. For example, when you install a program on your computer, let's say a drawing software, you will use it multiple times over an extended period. This program and its files are stored in the storage unit.

However, RAM revolves around the present moment. Let's assume you want to draw using a program. Well, what happens? You choose colors, draw lines, adjust the user interface, change settings, select tools, and so on. In other words, you're making rapid changes in real-time. The problem is, you can't access your storage space and make changes to it as swiftly. You need a form of memory that can be altered and influenced at any moment.

This is where Random Access Memory (RAM) comes into play. As its name suggests, it can be accessed randomly. When you open a program, it gets loaded into RAM, reflecting everything you do in real-time. Everything you do within the program affects what's loaded into RAM. This isn't limited to programs; many core functions that keep your device's operating system running are also loaded into RAM. In short, without RAM, your device won't function.

Second| why is more RAM better?

In essence, consider your device as a home where you store various furniture, appliances, and other items in the living room. This is where you live, so you can easily access these things whenever you need them. Now, think of the basement as a storage area. You keep things there for extended periods and don't need instant access to them.

Technically, when you use programs on your computer, you're loading data into your Random Access Memory (RAM). Imagine this as placing more things inside your living room. The more programs you load, the more your RAM gets used up. So, imagine it like this.

Eventually, you'll run out of space. Just like when your RAM is full, your device starts closing programs you've used before to make room for the ones you're loading now. This is akin to taking old items and putting them outside to make space for new furniture. So, as you can imagine, getting more RAM is like having a bigger living room. The more programs you have, the more programs you can run without needing to close them.

Where's the basement in the subject? Simply put, some devices use a portion of storage space as backup Random Access Memory. The device might have 8 gigabytes of RAM but actually borrow several gigabytes from this storage unit.

Third | What Does "DDR" Mean?

When you see a new device being released, you might come across the term "DDR." For instance, you might see "16GB of DDR5 RAM," but what does this mean? And why do companies want to impress you with higher DDR numbers?

In general, DDR stands for Double Data Rate, and it's a type of Random Access Memory (RAM) used in computers and other electronic devices. It's a technology that allows RAM to transfer data on both the rising and falling edges of the clock signal, effectively doubling the data transfer rate compared to Single Data Rate Synchronous Dynamic Random Access Memory (SDRAM). This means that DDR can transfer two pieces of data per clock cycle, doubling the bandwidth (speed) of the RAM.

Technically speaking, DDR uses the same number of pins as SDRAM but operates at a lower voltage (2.5 volts compared to 3.3 volts), reducing power consumption and heat generation. It also uses smaller and lighter memory chips, making it more suitable for mobile devices. DDR operates synchronously, meaning it synchronizes with the CPU clock, which determines the computer's processing speed. This allows DDR to be compatible with CPUs of different frequencies, as long as the DDR speed is equal to or lower than the CPU speed.

Over time, new generations of DDR RAM have emerged, each increasing the speed of RAM. DDR2 doubled the speed of DDR, DDR3 doubled the speed of DDR2, and so on. In terms of numbers, DDR1 operated at around 2.6 volts, while DDR5 operates at 1.1 volts. This means a 56% reduction in power consumption.

Fourth and Finally | What About LPDDR RAM?

LPDDR stands for Low Power Double Data Rate, which is a type of Random Access Memory (RAM) used in mobile devices such as smartphones, tablets, and laptops. LPDDR consumes less power compared to traditional DDR (Double Data Rate) RAM, thereby extending battery life and reducing heat.

At the same time, LPDDR utilizes the same underlying technology as DDR, which increases data transfer speed. However, LPDDR operates at lower voltage to power the memory and employs different timing schemes to enhance energy efficiency. For instance, LPDDR employs a low-power standby mode known as Deep Power Down (DPD), where the memory stops receiving or transmitting data and shuts down all internal circuits. This helps reduce power consumption to nearly zero levels when the memory is not in use.

Similar to DDR, LPDDR has its own versions, and currently, there is the LPDDR5 version which operates at a voltage of 1.05 volts and can transfer data at speeds of up to 6400 megabits per second.