Difference Between ATX and BTX (With Table)

Motherboards often referred to as a mainboard, is a huge embedded system that lies within the system casing and links all of the critical facets including the CPU, Memory, PCIe lanes, and storage devices, among others. Form factors are the many shapes and sizes that they come in.

If you’re familiar with the motherboard, you’ve heard the phrases ATX and BTX. These are a type of motherboards that plays an important part in boosting the effectiveness and adaptability of a computer.


The main difference between ATX and BTX is that ATX is the heir of AT architecture and is now the unofficial motherboard specification. On the other hand, BTX was first developed to supplant ATX, however, it was unable to accomplish so. Because the ATX motherboard architecture and constituent location culminated in far less ventilation and higher heat, BTX was created to address the issue.

The ATX motherboard is indeed a common heart of the system seen in desktops chassis. Intel introduced the ATX in 1995 to create an entirely new AT architecture. The Advanced Technology eXtended motherboard elements are designed in such a way that they obstruct the movement of air. As a result, the computer’s overheating issues arise. The systems and associated inside the ATX are stacked vertically, obstructing airflow.

The BTX (Functional Technologies eXtended) motherboards are a major revision of the ATX (Advanced Technologies eXtended) motherboards. Intel made this alteration decade after the ATX was introduced to enhance the circulation of the CPUs. It was created to reduce the goal of reducing the overheating difficulties that have been reported in recent reactors.

Comparison Between ATX and BTX

Parameters of
Full formAdvanced Technology
Balanced Technology
PurposeOriginally created to replace
AT design
Created with the purpose
for replacing BTX
Air FlowLessMore
IO PortTop of ATX boardBottom of BTX board
UsageFrequent used in desktopsRarely used in desktops
AdditionalNoFor cooling purposes

What is ATX?

The most popular sleek design of motherboards in the tech world is Advance Technology eXtended or ATX. Until 1995, however, that wasn’t the situation. Advanced Technology (AT) approach was employed on the motherboard until ATX had become the legal binding size.

AT motherboards, on the other hand, are lacking in capabilities and require upgrades. This is when Intel pounced and launched ATX, which served as a successor to AT in terms of energy efficiency, connectivity, and efficiency.

ATX was one of the most significant advancements in battery pack design, motherboard layout, and pc chassis design because it enhanced part commonality and interoperability.

The usual appearance for a comprehensive ATX motherboard is 12 x 9.6 inches. Micro-ATX, sometimes known as mATX, is a 9.6 by 9.6-inch form factor that is ideal for inexpensive PCs, however, PCle spaces might be few. Then there’s the EATX chipset, which allows a double and has a greater volume to better disperse heat.

The following are some of the advantages and disadvantages of the ATX mobo that you’d be aware of.

  • Extension – the ATX form factor’s size allows for ample spaces and connections for an extension.
  • Modifications – as there are many connections and sockets in this mobo, there is no more obstacle if and when we update the computer.
  • Exchangeable components – the ATX motherboard’s large size allows you to swap out or add components as needed.

What is BTX?

Balanced Technology (BTX) Intel’s elongated board layout was first launched in 2004. This was created to take the place of the unofficial norm, ATX.

Technology that is both fair and effective The eXtended layout was created to address key issues with the ATX sleek design. The most serious issue at the time was ‘heating.’ Because of the ATX’s constituent configuration, airflow was restricted, resulting in less conditioning.

When BTX was introduced, the position and layout of the elements (processing chip, northside processor) were changed, making this thin and light cooler than ATX. This has become BTX’s most huge asset versus ATX.


  1. Greater airflow – the BTX board’s major benefit is that it concentrates on airflow and especially in systems conditioning than ATX boards.
  2. Reduced delay – the novel design position on the board, as well as the architecture, decreases delay.
  3. Stability – This form factor’s efficient cooling ensures part longevity and also system reliability.

Deny the reality that it has greater conditioning than ATX, users do not appreciate this modular design for the aforementioned purposes:

  • People who have previously committed to ATX equipment are adamant about not changing.
  • In comparison to ATX, BTX is much more costly.
  • The majority of users are unconcerned with the cooling element.
  • There might be more things that people prefer ATX to BTX. Amongst the most understandable reasons would be that Intel had stopped developing the BTX chip.

Main Differences between ATX and BTX

  1. ATX stands for Advanced Technology eXtended whereas BTX stands for Balanced Technology eXtended.
  2. ATX was created to replace ATI whereas BTX was created to replace ATX.
  3. Unlike BTX which is discontinued, ATX is frequently used in Desktops.
  4. Unlike ATX, BTX requires an additional cooling device.
  5. ALX has low airflow when compared to BTX.


ATX, as well as BTX, as well as BTX, are motherboard requirements and design. Advanced Technology eXtended got replaced by Balanced Technology eXtended in 2004, about a decade since ATX was established.

Important features on the BTX panel, such as IO connections, spaces, primary storage, and so on, are located underneath the board to enhance ventilation. As a result, BTX outperforms ATX regarding ventilation.

Nevertheless, a single characteristic also couldn’t easily be the industry’s dominant force. Folks did not like BTX, even though it provided good cooling. People favor the ATX system because of its efficiency, quickness, extension possibilities, updates, and other features, which is why ATX is more often used in PCs than BTX.


  1. https://asmedigitalcollection.asme.org/InterPACK/proceedings-abstract/InterPACK2005/287/306007
  2. https://link.springer.com/article/10.1007/BF01395867