The best Micro ATX motherboards are presented in the following list.
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The ASUS ROG Strix B850-G Gaming WiFi is a premium micro-ATX motherboard built on the AMD AM5 socket, supporting Ryzen 9000...Read more
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The MSI MAG B850M Mortar WiFi is a robust Micro-ATX motherboard designed for AMD AM5 processors, supporting Ryzen 9000, 8000, and...Read more
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The ASUS ROG Strix B860-G Gaming WiFi is a micro-ATX motherboard built on the Intel B860 chipset for LGA 1851 socket processors...Read more
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The ASUS TUF Gaming B850M-PLUS WIFI7 is a micro-ATX motherboard designed for AMD Socket AM5, supporting Ryzen 9000, 8000, and...Read more
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The ASUS TUF Gaming B850M-PLUS is a micro-ATX motherboard designed for AMD Socket AM5 processors, including the Ryzen 9000, 8000...Read more
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The Gigabyte X870M AORUS ELITE WIFI7 is a high-performance Micro-ATX motherboard built for AMD Socket AM5, supporting Ryzen 9000...Read more
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The ASRock B850M Steel Legend WiFi is a high-performance Micro-ATX motherboard for AMD's AM5 platform, supporting Ryzen 9000...Read more
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The Gigabyte Z790M AORUS ELITE AX ICE is a high-performance, all-white Micro-ATX motherboard designed for Intel LGA 1700...Read more
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The MSI MAG B860M Mortar WiFi is a Micro-ATX motherboard designed for Intel Core Ultra processors (Series 2) using the LGA1851...Read more
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The Gigabyte B860M AORUS ELITE WIFI6E ICE is a high-performance Micro-ATX motherboard designed for Intel Core Ultra (Series 2)...Read more
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The ASUS ROG Strix Z690-G Gaming WiFi is a high-performance Micro-ATX motherboard designed for 12th and 13th Gen Intel Core...Read more
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The ASRock Phantom Gaming Z890M Riptide WiFi is a micro-ATX motherboard designed for Intel Core Ultra (Series 2) processors on...Read more
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The Gigabyte B650M AORUS PRO AX is a feature-rich Micro-ATX motherboard designed for AMD Socket AM5, supporting Ryzen 7000, 8000...Read more
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The Gigabyte Z890M AORUS ELITE WIFI7 ICE is a high-performance Micro-ATX motherboard designed for Intel Core Ultra Series 2...Read more
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The Gigabyte B860M Aorus Elite is a Micro-ATX motherboard designed for Intel Core Ultra processors on the LGA 1851 socket...Read more
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The ASRock B850M Riptide WiFi is a Micro-ATX motherboard built on the AMD AM5 socket, supporting Ryzen 7000, 8000, and 9000...Read more
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Why avoid?
The ASUS TUF Gaming B860M-PLUS is a micro-ATX motherboard designed for Intel Core Ultra Processors (Series 2) on the LGA 1851...Read more
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Why avoid?
The Gigabyte Z790M Aorus Elite is a compact Micro-ATX motherboard designed for Intel's 12th, 13th, and 14th Gen processors on the...Read more
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Why avoid?
The ASRock B860M Steel Legend WiFi is a Micro-ATX motherboard built on the Intel B860 chipset for LGA 1851 processors, featuring...Read more
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Why avoid?
The ASRock B850M Pro RS is a Micro-ATX motherboard designed for the AMD AM5 socket, supporting Ryzen 9000, 8000, and 7000 series...Read more
Audited using multi-parameter algorithmic scoring, verified specs, and multi-market user reviews.
The best micro ATX motherboard overall is ASUS ROG Strix B850 G Gaming WiFi, with an overall score of 9.01 points, the AM5 socket, and a price of around £250.
The ASUS ROG Strix B850-G Gaming WiFi is a premium micro-ATX motherboard built on the AMD AM5 socket, supporting Ryzen 9000, 8000, and 7000 series processors. Key specifications include a robust 14+2+1 power stage VRM (80A), support for up to 256GB of DDR5 memory at speeds exceeding 8000 MT/s (OC), and end-to-end PCIe 5.0 support for both the primary x16 graphics slot and one of its four M.2 slots.
Best value alternative: MSI MAG B850M Mortar WiFi, with an overall score of 8.98 points, the AM5 socket, and a price of around £180.
A Micro-ATX motherboard is a motherboard that follows the Micro-ATX form factor standard. It measures 244 x 244 mm, so it is smaller than a standard ATX board but larger than Mini-ITX. This format keeps compatibility with most ATX cases because the mounting points and backplate layout match the larger standard.
The best Micro-ATX motherboard brands are as follows.
The chart below ranks Micro-ATX motherboard brands by average overall score.
[horizontal-chart-10987648518271066010108858921397955563002020294599]Micro-ATX motherboards cost between £55 and £170 on average.
Entry-level boards from brands like ASRock, MSI, or Gigabyte start at around £55 to £80, which usually cover basic features such as fewer PCIe slots and limited power phases. Mid-range options cost £85 to £120, and they often include stronger VRMs, better audio chips, and more connectivity. High-end Micro-ATX boards can reach £155 to £170, which usually adds features like reinforced PCIe slots, premium networking, and RGB support.
The following chart shows the price distribution of Micro-ATX motherboards.
[vertical-chart-02872245641199046658123376276276882192080001616291]Micro-ATX motherboards support the same CPU socket types as ATX motherboards, since the form factor affects size but not compatibility with processors.
The socket type depends on the chipset and the generation of the board, not on whether it is ATX, Micro-ATX, or Mini-ITX. For Intel, common sockets include LGA 1151, LGA 1200, and LGA 1700, while for AMD, options include AM4 and the newer AM5.
Micro-ATX motherboards use the same chipsets as full-size ATX motherboards, with Intel and AMD chipsets being the primary options depending on the processor socket.
Intel Micro-ATX boards commonly use chipsets like Z790, B760, H770, and Z690 for 12th and 13th generation processors, while AMD variants utilize X670E, B650, A620, and X570 chipsets for AM4 and AM5 sockets. The chipset determines features such as PCIe lane distribution, USB port count, SATA connections, and memory support capabilities.
Micro-ATX motherboards support DDR4 and DDR5 memory types as their primary RAM standards.
DDR4 remains the most common memory type across Micro-ATX boards, with speeds ranging from DDR4-2133 to DDR4-4800 and beyond, while newer Micro-ATX motherboards increasingly support DDR5 memory with speeds from DDR5-4800 to DDR5-7200 or higher.
The specific memory type compatibility depends on the motherboard's chipset and CPU socket, as Intel and AMD platforms have different memory controllers that determine which DDR generation the board can use.
Micro-ATX motherboards can handle up to 128 GB of RAM, depending on the chipset and generation. Most models include four DIMM slots that support dual-channel memory, so the total capacity depends on how much each slot supports. Older Micro-ATX boards often support up to 32 GB or 64 GB, while newer ones designed for modern CPUs usually reach 128 GB.
The type of RAM supported also influences the maximum capacity. DDR3-based Micro-ATX motherboards usually stay limited to 32 GB or 64 GB, while DDR4 models increase this to 128 GB.
The latest DDR5-compatible Micro-ATX motherboards can also handle 128 GB, with higher speeds and bandwidth compared to previous generations.
Micro-ATX motherboards support PCIe versions from PCIe 2.0 up to PCIe 5.0, depending on the generation and chipset.
Older Micro-ATX boards often use PCIe 2.0 or 3.0, while most current models use PCIe 4.0, and the newest ones with the latest Intel or AMD platforms can support PCIe 5.0. The version depends on the CPU and chipset combination, not only on the form factor.
Most Micro-ATX boards include at least one full-length PCIe x16 slot for graphics cards. This slot usually supports the highest PCIe version of the board, while the secondary slots (x4 or x1) may run at lower PCIe versions.
Micro-ATX motherboards have a wide range of connectivity options that cover both internal and external connections. Most models include multiple USB ports in different versions (USB 2.0, USB 3.2 Gen1, and sometimes USB 3.2 Gen2 or USB-C), HDMI and DisplayPort outputs for integrated graphics, and standard audio jacks. Ethernet ports are common, with many boards using Gigabit LAN, while some higher-end models integrate Wi-Fi and Bluetooth support.
On the internal side, Micro-ATX motherboards include SATA ports for hard drives and SSDs, and many newer boards also have M.2 slots that support both NVMe and SATA drives. They typically feature PCIe slots for graphics cards and expansion cards, with at least one full-length PCIe x16 slot and additional PCIe x1 slots.
