The system memory may be arbitrarily accessed, and it is sometimes referred to as main memory or RAM (Random Access Memory). This implies that each byte may be read without affecting the bytes before it. The working memory of the computer is stored in RAM. All data is kept on the hard disc. However, in order for the CPU to utilize the data during regular operations, data from the computer must be read into the RAM chips. Let us understand everything there is to know about Laptop RAM vs Desktop RAM.


What is desktop RAM?

The Dual In-line Memory Module is the system memory module used by desktop computers. On a single circuit board, there are many memory chips of the DIMM kind. The most common form of memory found in desktop PCs is called a DIMM.

The majority of contemporary desktop PCs with 64-bit data rates are compatible with DIMM modules. Additionally, they have taken the place of the previous 32-bit memory-path SIM (Single In-Line Memory) modules.

DIMM is also a type of dynamic RAM (DRAM). Memory that falls within the DRAM category makes use of a transistor and capacitor pair. It certainly does what it says on the tin; it often updates the memory to prevent its data from being lost.

DIMMs come in a variety of forms:

  • SDRAM (Synchronous Dynamic Ram) (Synchronous Dynamic Ram)
  • SDRAM DDR (Double Data Rate Synchronous DRAM)
  • DDR2-SDRAM (Double Data Rate 2 Synchronous RAM) (Double Data Rate 2 Synchronous RAM)
  • DDR3-SDRAM (Double Data Rate 3 Synchronous RAM) (Double Data Rate 3 Synchronous RAM)


What is laptop RAM?

Small Outline Dual In-Line Memory Modules are the type of system memory used in laptops. In many ways, it resembles a condensed version of DIMMs. SODIMMs also make use of integrated circuits. SODIMMs are the main memory modules found in almost all contemporary laptops.

They are relatively compact, making them perfect for laptops, which are transportable computers. Computer SODIMMs are nearly half the size of standard DIMMs. Since a desktop memory module would be impossible to install in a tiny system, SODIMMs have taken the role of DIMMs.

You may be familiar with the following SO-DIMM examples:

  • 100-pin SDR RAM with two notches.
  • 144 pins and one notch comprise SDR SDRAM.
  • 200 pins and one notch for DDR/DDR2 SDRAM.
  • With 204 pins and a single notch, DDR3 SDRAM is available.
  • 260 pins and one notch make up DDR4 SDRAM.
  • A single notch and 260 pins make up a UniDIMM.


The key similarities between laptop RAM and desktop RAM

Many people are aware that RAM is a sort of computer memory. All memory regions are accessible to you in read-write mode. The location is established using the memory address. The data stored in the RAM, however, will only be transitory. If there is no electricity, they will be lost.

The primary purpose of the RAM is to temporarily store data before sending it to the CPU for processing. The capacity of the RAM increases with the amount of data that can be stored inside. The performance of the desktop or laptop will be higher since the CPU will not need to process data as frequently.

Most laptops and computers only have two slots for memory. A RAM bar will come standard in your laptop or computer casing from the manufacturer. Using the other slot, you may update the RAM in a laptop or PC.

On high-end computers, the producer offers two RAM bars (similar to those seen in smartphones). As a result, switching to a newer model laptop will be more challenging. There is no need to upgrade because these laptops can store a lot of RAM.

Laptop RAM vs Desktop RAM

The key differences between laptop RAM and desktop RAM

Despite the fact that both kinds of system memory modules serve a similar purpose, there are some differences.

1.   RAM Size Is Important

Physically, desktop RAM is bigger than laptop RAM. While memory modules in laptops have 204 pins, DDR4 memory modules used in contemporary PCs have 240 pins. The typical size of a desktop RAM module is 4.5 inches, whereas the typical size of a laptop memory module is 3 inches.

Thus, the physical length and pin arrangement mainly account for the size disparity. About half of desktop RAM chips are found in laptops.

2.   Compatibility

As was previously mentioned, desktops have DIMMs, a type of system memory, whereas laptops contain SODIMMs. They are both unique and their respective motherboards cannot support them.

In the past, RAM modules from laptops could be used on desktop computers and vice versa.

The situation has changed, nevertheless, since fresh varieties of system memory became available. Since their designs and settings are different, RAM sticks in desktops and laptops cannot be swapped.

3.   Upgradability

Although it is not a crucial issue, aficionados are often concerned with upgradeability. Many laptop makers solder RAM modules onto the motherboards without including additional spaces for upgrades.

Although not all computers can accomplish that, the number is growing. With desktops, you have greater room for upgrades and the freedom to select the RAM size that best suits your needs.

Manufacturers of laptops tend to go down the route of giving users little or no control over their devices. Although not directly connected, the upgradability element is something to take into account if we compare the two.

In conclusion, the physical size and structure are the obvious differences between desktop RAM and laptop RAM. Basically, they serve the same purpose.


Frequently asked questions

1.   Can I use a laptop with desktop RAM?

Yes, you may use a laptop with desktop RAM. To achieve this, though, there are a few conditions:

  • Verify sure your laptop’s motherboard permits the use of desktop RAM, or inquire about compatibility with the makers of both components.
  • It is crucial to conduct your study before purchasing new parts because not all motherboards enable utilizing different types of RAM.

2.   Is RAM for PCs less costly than RAM for laptops?

Yes, computer RAM is less costly than memory for laptops. This is due to increased manufacturer rivalry in the market for desktop components like these, which eventually results in lower pricing.

3.   Can I use desktop RAM to update my laptop’s memory?

Users of laptops can update their RAM by purchasing and installing new modules or by repurposing older, compatible modules that are not currently being utilised in a build.



This was a thorough comparison of the RAM in laptops and personal computers. We provided information on their features and several distinctions to assist you in selecting your future computer. Geonix is a prominent supplier of laptop RAM and desktop RAM in India. If you have a requirement, you can visit the website and place an order.