WHAT is difference between SO-DIMM AND DIMM

WHAT is difference between SO-DIMM AND DIMM

WHAT is difference between SO-DIMM AND DIMM

If you do not know what is different between the SO-DIMM and DIMM hang on tight. The distinctive characteristic difference between the SO-DIMM and DIMM is their size. DIMMs are larger than the SO-DIMM. The other difference is devices where they are used. DIMM are used in PCs while the SO-DIMM are used in the laptops and notebooks.

Can I use SO-DIMM instead of DIMM

It is not possible to interchange SODIMMs and standard DIMMs. So-DIMM are designed for laptops while the DIMM are designed for.

How do I know if my RAM is SO-DIMM

An output of 8 indicates that the device uses DIMM modules (commonly found in desktop computers). Alternatively, if the command outputs a 12 instead, the computer uses SODIMM modules (typically included with laptop computers)

Is SODIMM and DIMM interchangeable?

Memory is not interchangeable between the two types. In addition to preventing cross-installation, the different notch locations can help visually identify 200-pin SO-DIMM modules. Read our DDR4  buying guide here to help you get the best DDR4 RAM for your PC or laptop

Is SO-DIMM  laptop RAM

In fact, yes. So-DIMM is the type of memory used in laptops. Furthermore, if the memory is meant for a laptop, it will be SO-DIMM

When it comes to RAM aimed toward the consumer (we, the users), there are two different formats: DIMM format or SO- format. DIMM is the traditional “full size” memory found on desktops.SO- DIMMS are smaller, suited for laptops and mini PCs. Here you will learn the difference between RAM DIMM and RAM SO-DIMM and the reasons why laptops and mini PCs use SO-DIMM.

The type of memory that can be installed in laptops and desktops is usually either SO-DIMM or DIMM, with some rare exceptions. What is the reason for this?

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RAM DIMM vs SO-DIMM: physical differences

Small Outline Dual In-line Memory Modules are called SO-DIMMs after the acronym that stands for them. The word “Small Outline” is what distinguishes these memory modules from typical DIMMs. In fact, the difference is merely physical, since the small-sized modules are optimal for use in small equipment such as laptops due to their smaller size.


As a result of the physical, dimensional differences between the two types of RAM modules, there are also, obviously, differences in the sockets of the motherboards on which they are installed as well as the connections. There is no reason to believe that memory modules would have the same number of pins regardless of the generation. Below is a table showing it.

Memory type  DIMM SO-DIMM

SDR memory type      DIMM 168 pins          SO-DIMM 100/144 pins

DDR memory type     DIMM 184 pins          SO-DIMM 200 pin

DDR2 memory type   DIMM 240 pins          SO-DIMM 200 pin

DDR3 memory type   DIMM 240 pins          SO-DIMM 204 pins

DDR4 memory type   DIMM 288 pins          SO-DIMM 260 pins

The fact that DIMM modules are longer means they always have more contacts than SO-DIMM modules. The larger physical size of DIMM modules also allows for higher memory densities, even when similar in terms of technical specifications (we repeat, even when similar, there are greater margins).

Is SODIMM slower than DIMM?

It is now time to tell you which of the memory modules is faster than the other, based on what you know about the two types of memory. DIMM is a faster memory type than SODIMM, and it would be a logical assumption that it would be faster. In a DDR3-SODIMM, for example, there can be as many as 14 addresses assigned to each memory channel. By contrast, a DDR3-DIMM is able to specify as many as sixteen analogous address lines per memory channel. The conclusion can be drawn that, in the end, SODIMM is much slower than DIMM. In addition to that, it is also important to make a point of mentioning that there are not major differences between them.

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What is the difference between a SIMM and a DIMM?

SIMMs (Single In-Line Memory Modules) have a single logical connector. Both sides of the board have the same connector. Singular In-Line Memory Modules are no longer in use.

DIMMs (Dual In-Line Memory Modules) have two connecting lines. There is no connection between the parallel connectors. Currently, DDR3, DDR4, and DDR5 may be used with DIMMs and SoDIMMs

Why don’t they make laptops with DIMM memory?

Space is the main reason. It is important to be able to integrate the best hardware into a laptop while occupying the least amount of space possible when you design a laptop. Since laptops are designed to be easily and comfortably carried, their premise is that laptops are exactly portable. Their size, thinness, and lightness indicate that they move from place to place.

SO-DIMM memory can be used for this purpose, which, although it is not essential, helps to ensure compliance with this principle. The SO-DIMMs are not only smaller and narrower, but they can also be installed horizontally because of their sockets. In order to install normal DIMMs horizontally, you would need a sisterboard on the motherboard because DIMM sockets are significantly thicker. There are cases in which laptops have been used this way, but it is not common.

SODIMM Vs. UDIMM: What Is the Difference?

In this article, we would like to describe two terms related to types of memory in computers: the Small Outline and Unbuffered Dual Inline Memory Modules. There are UDIMMs and SO-DIMMs. UDIMMs are generic terms that refer to most memory modules, but SO-DIMMs are mainly used in notebook computers AND LAPTOPS .


Data is passed to or from the memory chips by a microprocessor in a buffered memory module. The motherboard can thus handle many memory modules without overloading the memory controller and causing system instability. Using buffered memory is recommended on computers with more than four memory slots. Most desktop computers and laptops have four memory slots at most, eliminating the need for buffered memory. This is why most computer systems use UDIMMs.


It is difficult to fit full-sized memory modules into notebooks and small-form-factor desktop computers due to their limited space. Because of this, computers with these smaller circuit boards use memory modules. It is possible to have a computer with a comparable memory capacity to a full-size computer by using SO-DIMMs.

How to identify SO-DIMMs

The primary difference between a standard DIMM and an SO-DIMM is their size; a standard DIMM measures a little over five inches long, whereas the SO-DIMM measures only a bit over 2.5 inches. There are 204 pins on a SO-DIMM and 240 pins on a DIMM for DDR3-SDRAM.

How to identify UDIMMs

Unbuffered DIMMs can be either full-sized DIMMs or so-called SO-DIMMs. Servers and workstation computers are the only machines that require buffered memory, which is why all SO-DIMMs are UDIMMs. UDIMMs make up the majority of full-sized DIMMs. As opposed to buffered memory modules, a UDIMM lacks its own microprocessor.

A DIMM (Dual Inline Memory Module) is a type of memory module specifically designed for use with desktop computers and low-powered workstations. As the name indicates, SODIMM (Small Outline Dual In-line Memory Module) is a memory module with a thin outline and designed primarily for notebook computers.

which is better: SODIMM or DIMM?

Additionally, which is better: SO DIMMS or DIMMs? Servers use DIMMs. There is about double the length of a DIMM (133MM) compared to a SODIMM (67MM). ECC and REGISTERED are features normally not associated with SODIMMs. Laptop computers typically use SODIMMs.

can I use SODIMM instead of DIMM

Wouldn’t it be great if SODIMM could replace DIMM? Is it possible to install SODIMM memory in a standard DIMM motherboard? That’s possible! but additional devices may be necessary.

 is DIMM faster than SODIMM

What is the difference between DIMM and SODIMM in terms of speed? DIMMs are faster than SODIMMs, that is the simple answer. A DDR3-SODIMM memory module, for example, is capable of configuring up to 14 address lines per memory channel. The DDR3-DIMM, on the other hand, can specify up to 16 memory channels of the same address.

Many of you have asked whether laptops use DIMMs or SODIMMs. In most desktops and laptops, DIMM slots are used for RAM, while SODIMMs are used for memory. There are occasionally (but very rarely) SODIMM slots on desktop motherboards. The DDR4 memory type is common in desktop and laptop computers, though laptops never use DIMM slots. It is the fourth generation of DDR RAM. It supports data transfer rates between 1600 Mbps and 3200 Mbps. There is a power requirement of 1.2 volts. Regular DIMMs have 288 pins, and SO-DIMMs have 260 pins.

Is SO-DIMM cheaper than DIMM?

SODIMMs and DIMMS do not differ significantly apart from the bigger module size. Unless there is a noticeable improvement in speed or a reduction in manufacturing costs, OEMs might find it cheaper to stick with the motherboard blueprint than to tweak RAM module types.

Do all laptops use SO-DIMM?

In short, yes. Typically, laptops use SO-DIMMS. In addition, if you look at the photos provided for both listings, you could conclude that BOTH are SO-DIMM, since they are both the same size (physically), have the notch in the same place, and are both intended for laptops. When a laptop is involved, the memory is SO-DIMM.

What is a 1x SO-DIMM slot?

Since smaller and more compact devices have limited space, Small Outline Dual Input Memory Module (SO-DIMM) slots are commonly used. In comparison with DIMM slots, SO-DIMM slots occupy half the space, but draw more power than their bigger counterparts.

Which RAM is best for laptop?

Corsair Vengeance LED. Best RAM. Specifications.

  1. Skill Trident Z RGB. Best DDR4 RAM.

Kingston HyperX Predator. Best DDR3 RAM.

Kingston HyperX Fury. Best budget RAM.

Corsair Dominator Platinum RGB. Best high-end RAM.

HyperX Fury RGB 3733MHz. Best high frequency RAM.

  1. Skill Trident Z RGB DC.

Adata Spectrix D80. Best gaming RAM.

Is Sodimm faster than DDR4?

DDR3 is available in speeds ranging from 800 MHz to 2133 MHz. In contrast, DDR4 has no maximum clock speed defined and its minimum clock speed is 2133 MHz. The DDR3 also performs more rapidly than the DDR4 memory modules. On the other hand, DDR4 has a slight latency advantage over DDR3.

Are SODIMM RAM good?

Nowadays, SODIMM modules are the most common way to install RAM inside laptops. A faster RAM can transfer information more quickly. You already move data pretty fast when you have DDR4 RAM, therefore RAM speed doesn’t have a huge effect on most tasks.

Why do laptops use SO-DIMM?

In the process of making laptops you will find that RAM is used as Small outline dual in-line memory modules (SO-DIMMs). The only difference is that these DIMMs are much smaller and use integrated circuits rather than traditional DIMMs. … Having a smaller size than a typical DIMM chip, SO-DIMM chips are more flexible when designing the laptop’s memory slots.


DDR4-SDRAM is the most common type of DIMM memory chip. For desktops and laptops, DDR2- or DDR3-SDRAM are the most popular types of DIMM memory. Small Outline RAM, also called SO-DIMM, is a type of RAM manufactured for laptop computers.

Is 32GB RAM overkill?

Most of the time, the short answer is No, you don’t need 32GB of RAM. My desktop computer with 16GB memory has been working fine for editing 4K videos. The entire 16GB RAM is never used playing the latest games on ULTRA settings on a daily basis.

Form factors

This section compares 204-pin DDR3 SO-DIMM modules to 200-pin DDR and DDR2 SO-DIMMs.

DIMMs can be found in a wide range of form factors. DRAM DIMMs with single data rate synchronous (SDR) were typically made in 1.5 in. (38 mm) and 1.7 in. (43 mm) heights. To fit into the box holding 1.75 inches (44 mm) high rackmount servers, form factor registered DIMMs had to connect to angled DIMM sockets. Next, the “low profile” (LP) form factor of DDR DIMMs of roughly 1.2 inches (30 mm) was created to alleviate this problem. This enabled them to be used in a rackmount system.

LP form factor DIMMs can now be easily accommodated in these space-constrained blade servers using angled slots once again. In response, the VLP form factor DIMM was created with a height of approximately 0.72 inches (18 mm). For VLP DIMMs, the DDR3 JEDEC standard provides a height of 18.8 mm (approximately 0.740 inches). Atca systems can use these vertically.

JEDEC’s standards specify that DDR3 DIMMs and DDR2 DIMMs have a height of around 1.18 inches (30 mm). Among the form factors are 240-pin DIMMs, SO-DIMMs, Mini-DIMMs and Micro-DIMMs.

DDR4 DIMMs with the full height of 288 pins are approximately 1 inch (31 millimeter) taller than those with the full height of 288 pins. Furthermore, VLP DDR4 DIMMs are almost 0.74 inches (19 mm) taller than their DDR3 equivalents.

As of Q2 2017, Asus introduced the “DIMM.2” with a PCI-E slot, similar to the DDR3 DIMM slot, which is used for solid-state drives M.2 NVMe. There are, however, a number of limitations regarding RAM compatibility and Asus is the only provider of support.

SO-DIMMs are generally 67.6mm long, while regular DIMMs are usually 133.35mm.


Knowing which one is slower will enable you to make a more informed choice here. Any time you make a decision, you need to ensure that you are able to analyze it thoroughly. There are other factors to consider besides speed in this case. Besides speed, you also have to take into account other factors. A number of factors may need to be considered, such as the module’s size. Therefore, it is a complex task and must be handled appropriately.

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