What is DDR4 RAM in laptop?

DDR4 refers to the fourth generation of DDR RAM that is featured in the desktop and laptop.

It was first introduced in 2014, however, it was not widely adopted until 2016.

DDR4 is intended to succeed DDR3, which was the previous DDR standard.

Better memory density and more memory banks allow for faster data transfer rates and larger capacity.

DDR4 is also more power-efficient because it operates at a lower voltage (1.2V compared to 1.5V).

Below are some notable DDR4 specifications:

  • The memory module has a maximum capacity of 64 GB.
  • There are 16 memory banks on the inside.
  • The data transfer rates vary between 1600 to 3200 Mbps.
  • A 1.2-volt electrical supply is required.
  • A standard DIMM has 288 pins, while a SO-DIMM has 260 pins.

Types ddr4 in a laptop:

DDR4 memory modules are divided into two types: DIMMs and SO-DIMMs.

In desktop towers, DIMMs are used, while SO-DIMMs are used in laptops and all-in-one PCs.

The initial DDR4 DIMMs had a curved bottom edge that made it easier to insert and remove them from RAM slots on a motherboard.

This unique position of the notch between the pins makes putting a DDR4 chip into an incompatible slot impossible.

Lifespan of DDR4 RAM:

As DDR4 memory sticks do not decay on their own, they should last a long time (perhaps even the lifetime of your laptop).

Additional factors such as excessive heat, misuse, manufacturing defects, connectivity difficulties, etc. represent a risk.

What is DDR4 RAM in laptop

How Does it Work?

  • The data pre-fetched in DDR4 RAM is 8 bits per cycle which is the same as in previous generations.
  • However, the internal clock speed is amplified four times, resulting in a maximum clock frequency of 1600 MHz and a transfer rate of 3200 MT/s.
  • This amounts to 25600 MB/s in terms of real-time speeds.
  • DDR4 is a type of SDRAM that improves performance via that works in tandem with the laptop.
  • There are various components called Rows, Columns, Banks, and so on.
  • Memory transmission is a two-step process that occurs in bursts, it might be either 8 bits or 4 bits apiece.
  • While reading, the first step is to use the ACT command that displays the RAM’s row address followed by the column address.
  • When writing to the RAM, the first row is activated, followed by the column(s).
  • After writing, the row is then deactivated.
  • DDR cell has a storage capacitor and an access transistor on a deeper level.
  • The Row and Column lines are the two lines for charge movement.
  • The charge is placed into the column line as a 0 or 1, then flows through the access transistor to store it in the storage capacitor while the data is being written.
  • DDR4 memory modules may store more data and operate at a lower voltage, among other features that improve performance over previous generations.

Advantages of DDR4:

It has several benefits over the other versions, we have listed a few of them below:

1. Better speed and bandwidth:

DDR4 RAM in laptop offers a higher data rate than DDR3 RAM which starts at 1600 MHz and goes up to 3200 MHz in stock.

The maximum clock rate of DDR3 was about 2100 MHz

There’s also the ability to overclock which allows you to increase the RAM speed even more.

2. Thicker:

DDR4 memory modules are thicker, allowing for more signal layers to be stored.

3. Lower Power:

DDR4 RAM uses 40% less power than DDR3, so you will save money even if you use it for extended periods.

They can also help you save battery life and use 1.2 volts of power.

4. Designed for powerful processors:

DDR4 RAM is designed to increase the performance of multi-core processors in laptop.

As a result, whether you choose Intel or AMD, you can take advantage of all the high-end CPUs.

5. Better capacity:

DDR4 RAM modules are available in sizes ranging from 4 to 16 GB because of high chip density than DDR3 RAM modules.

6. Expansion:

Memory can be increased, and other hardware such as more processors can be added.

This feature was previously unavailable.

Related Article: What is Optane Memory?

Disadvantages of DDR4:

There are no significant defects in the use of DDR4 RAM in your laptop, however, the following are some of the things we found:

1. Presence of Capacitors:

The fundamental issue with DDR4 chips is that the capacitors must be recharged periodically or data would be lost.

2. Higher Latency:

The CAS latency of DDR4 RAM is longer than that of DDR3 RAM (DDR3 has 9 or 10 and DDR4 has 15 CAS latency).

If you are confused with the phrase, CAS latency refers to the period between issuing a READ instruction and receiving the data.

However, the increased speed and performance compensate for it.

Related Article: What is an NVMe in laptop?
3. Compatibility:

The lack of backward compatibility is another issue that is unique to the DDR RAM family.

As a result, DDR4 RAM and DDR3 RAM cannot be used in the same slot laptop.

4. Price:

The DDR4 standard is more expensive than the DDR3 standard while becoming much more economical.

However, since you are gaining significantly superior features, it is partially justified.

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Uses of DDR4 RAM:

  • DDR4 RAM has a fast response time and low power consumption in general.
  • It is used for a wide range of modern jobs including editing, gaming, and data storage in servers and workstations.
  • For high-capacity server work, the RDIMM and LRDIMM modules are extremely beneficial.
  • This version of RAM contains many such features, and it will remain until the DDR5 type is released.
Related Article: What is an Ethernet Port?
Frequently Asked Questions:
What is DDR4 RAM for the laptop?

DDR4 SDRAM is “Double Data Rate Fourth Generation Synchronous Dynamic Random-Access Memory.”

What is the speed of DDR4 RAM?

DDR4 ram speeds start at 2400 MT/s.

Is DDR4 better than SSD?

Your fastest SSD has 1000x the latency of DDR4.


The development of DDR4 RAM in laptop is a defining moment in computer history.

It is the best RAM manufactured at an affordable price, overall reliability, and other qualities.

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Hi, I am Meena Patil, the founder of best-laptop.in/, I did my B.E. Computer. This blog provides honest information related to several laptops, laptop equipment, laptop reviews, buyer's guide and much more.

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