ATX vs Micro ATX vs Mini ITX Which Should I Choose?


The Complete Guide to Motherboard Sizes EATX vs ATX vs Micro ATX vs Mini ITX What in Tech

Technology Explained ATX vs. Micro ATX vs. Mini ITX: Which Motherboard Size Is Right for You? By Arol Wright Published Aug 11, 2022 Motherboards come in all shapes and sizes, as you'll find when you dive into your PC shopping spree. But what size should you choose? Readers like you help support MUO.


ATX vs MicroATX vs Mini ITX Motherboards(Latest Guide 2023)

Mini ITX: 170 x 170mm or 6.7" x 6.7" ATX vs Micro ATX vs Mini ITX After looking at these measurements, you can see that the biggest motherboard among these is the ATX, and following it up is the Micro ATX, and the smallest among them is the Mini ITX. ATX and Micro ATX motherboards share the same amount of width and look very similar to each other.


Mini ITX vs. Micro ATX vs. ATX Motherboard Sizes Explained Voltcave

Micro-ATX strikes a balance between size and functionality, Mini-ITX maximizes space efficiency, and ATX offers the highest level of expandability and features. The right choice depends on your individual requirements, budget, and intended use. By understanding the differences and aligning them with your needs, you can select the ideal.


Mini ITX vs Micro ATX vs ATX A Detailed Comparison

The Mini-ITX is a flawless option for those who look for reduced noise while operating the PC. This version holds four mounting ports and similar expansion slots as the ATX motherboard. Essentially, the mini-ITX board can support up to two RAM modules with a single PCIe slot, which means you can only load up to 32 GB of memory.


ATX vs Micro ATX vs Mini ITX Which Should I Choose?

ATX vs Micro ATX vs Mini ITX Size As you can see from the image above, ATX is the largest format of the bunch, measuring 305×244 mm. The Micro ATX is a tad shorter but just close behind, measuring 244×244 mm. Finally, there's the Mini ITX motherboard. It's the smallest of the bunch at a diminutive 170×170 mm.


MicroATX vs MiniITX vs ATX Which Motherboard should you pick? Free PC Tech

What's the difference between ATX, MicroATX, and Mini-ITX motherboards? And which should you choose for your PC? We've got the answers to these burning questions, and more. The MSI MPG Z390M Gaming Edge ATX motherboard for Intel processors. Readers like you help support How-To Geek.


What is MiniITX? A Brief Breakdown of Motherboard Sizes

4. Make the Right Motherboard Choice for Your Needs Micro-ATX vs Mini-ITX vs ATX: A Size Comparison The biggest difference between micro-ATX (mATX), mini-ITX, and standard ATX motherboards are their dimensions: Standard ATX: 12.0″ x 9.6″ Micro-ATX: 9.6″ x 9.6″ Mini-ITX: 6.7″ x 6.7″


MicroATX Vs MiniITX Vs ATX Which One Should You Choose?

1. About ATX ATX is the most common form factor you'll find in the mortarboards. It's the largest and the most expensive variant. Typically, an ATX form factor is perfect if you want to build a high-end gaming rig. Usually, the motherboards with ATX form factor come with four memory slots.


Micro ATX vs Mini ITX Which Motherboard to Buy in 2021

There is a lot of difference between these Motherboards discussed in this article under the titles such as ATX vs Micro ATX, Micro ATX vs Mini ITX, ATX vs Mini ITX, etc. The most crucial factor while buying the motherboard is for what purpose you will use it. These motherboards are built explicitly for their assembled goals.


ATX vs Micro ATX vs Mini ITX Which Should You Choose?

Mini ITX: 170 x 170mm or 6.7" x 6.7" Looking at the sizes of motherboards, it can be concluded that the ATX motherboard is the biggest board with 305 mm length while micro-ATX is slightly smaller but has similar width, this is because the number of PCIe slots is less in Micro-ATX.


ATX Vs Micro ATX Vs Mini ITX Best Guide 2023

In turn, these differences determine what type of PC case you can use for your motherboard. For example, VIA Technologies first developed the ITX for use in small-configured computer systems, and ITX has less RAM than other motherboards. Intel developed the ATX for single-GPU PC builds, and it has more RAM than other miniature motherboards.


Mini ITX vs Micro ATX Computer Cases Differences and Comparisons

A Mini-ITX motherboard measures 6.7 by 6.7 inches (17 by 17 cm), while microATX motherboards are 9.6 by 9.6 inches (24.4 by 24.4 cm). If you do the math, you'll find that microATX motherboards are about 40% larger than Mini-ITX. Still, both are significantly smaller than ATX motherboards, which measure 12 by 9.6 inches (30.5 by 24.4 cm).


Micro ATX vs Mini ITX vs ATX Which Size is Right for You?

This is the most common type of motherboard form factor out there. The Micro ATX motherboards measure 244mm x 244mm (9.6 x 9.6 inches). They are square-shaped. The Mini ITX motherboards are the smallest of the three form factors that measure 170mm x 170mm (6.7 x 6.7 inches). They are square-shaped.


Micro ATX vs Mini ITX vs ATX Which Size is Right for You?

Size: Motherboard size comparison As you can see from the above measurements, ATX is the largest format of all. The Micro-ATX is approximately 244×244 mm, which makes it a little smaller. And last but not least, there comes a Mini-ITX motherboard, which is the smallest and most demanding above all.


Motherboards ATX vs Micro ATX vs Mini ITX [Which To Pick?]

The first thing you'll notice is the difference in size. Motherboard Size Comparison Chart - XL-ATX, E-ATX, ATX, M-ATX, ITX Compared to an ATX motherboard, an ITX one is petite and minuscule, almost laughably small. mATX is square in the middle — not too big but certainly not too small either.


Mini ITX vs. Micro ATX vs. ATX Motherboard Sizes Explained Voltcave

Mini ITX: 170 x 170mm or 6.7" x 6.7" As observable from the dimensions, ATX is the largest one in physical size. An intriguing detail from the measurements alone is that Micro ATX and ATX have one dimension similar. ATX is taller than Micro ATX from a tower PC perspective.