ATX or Micro-Atx Motherboards? Compared by Specs
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The ATX vs Micro-ATX motherboard choice often comes down to physical size and expansion capacity. Both boards here support Intel 12th through 14th Gen processors on the LGA 1700 socket and use modern DDR5 memory. They also share similar connectivity options, including 2.5GbE Ethernet. The main difference lies in the form factor and PCIe generation. One board offers the larger ATX layout with PCIe 5.0 support, while the other provides the more compact Micro-ATX design with PCIe 4.0. This affects how many devices you can connect and how fast data moves.
Key differences
| Aspect | MSI PRO ATX DDR5 Motherboard | ASUS Prime Micro-ATX DDR5 Motherboard |
|---|---|---|
| Form Factor | ATX | Micro-ATX |
| PCIe Version | PCIe 5.0 | PCIe 4.0 |
| Wi-Fi Standard | Wi-Fi 6E | Wi-Fi 6 |
| Max Memory | 128GB | 64GB |
| CPU Socket | LGA 1700 | LGA 1700 |
Which one should you choose?
Choose MSI PRO ATX DDR5 Motherboard if
- You need the latest PCIe 5.0 speeds for future graphics cards or storage.
- You plan to install more than 64GB of DDR5 RAM.
- You want Wi-Fi 6E for less congested wireless performance.
Choose ASUS Prime Micro-ATX DDR5 Motherboard if
- You are building in a smaller case that requires a Micro-ATX board.
- You do not need more than 64GB of system memory.
- You prefer a standard Wi-Fi 6 connection that is widely supported.
Verdict: Choose the ATX board if you want maximum expansion room, higher memory capacity, and the newest PCIe 5.0 standard. The Micro-ATX option is better if you are limited by case size or do not need the extra bandwidth and RAM. Both provide solid performance for modern Intel processors.
ATX vs Micro-ATX Motherboard Specs
form factor
The MSI PRO Z790-P WiFi follows the standard ATX layout, measuring 12.0 x 9.6 inches. This larger footprint provides ample space for multiple expansion slots and easier cable management. In contrast, the ASUS Prime B760M-A AX uses the more compact Micro-ATX design, measuring 9.6 x 9.6 inches. This smaller size fits into tighter cases and saves desk space. If you need room for many PCIe cards, the ATX board is better. If you prioritize a smaller build, the Micro-ATX option is the practical choice for your chassis.
pcie version
The MSI PRO Z790-P WiFi supports PCIe 5.0, which offers significantly higher bandwidth for next-generation graphics cards and storage devices. This ensures future-proofing for high-speed components. The ASUS Prime B760M-A AX is limited to PCIe 4.0. While PCIe 4.0 is still very fast for current SSDs and GPUs, it lacks the raw throughput of version 5.0. For users planning to upgrade to the latest PCIe 5.0 hardware soon, the MSI board has a clear technical advantage. The ASUS board remains sufficient for standard high-performance builds today.
memory capacity
Both motherboards support DDR5 memory, but they differ in maximum capacity. The MSI PRO Z790-P WiFi includes four slots and supports up to 128GB of RAM. This allows for heavy multitasking and professional workloads. The ASUS Prime B760M-A AX supports up to 64GB of DDR5 RAM. While 64GB is plenty for most gaming and general use, the MSI board offers double the maximum capacity. If you plan to use massive amounts of system memory for rendering or virtualization, the MSI option is the superior choice for your needs.
wi-fi standard
Wireless connectivity differs between the two boards. The MSI PRO Z790-P WiFi features Wi-Fi 6E, which adds the 6GHz band for less congested and faster wireless speeds. The ASUS Prime B760M-A AX offers Wi-Fi 6, which operates on the 2.4GHz and 5GHz bands. Both include Bluetooth 5.3 or similar versions for peripheral connections. Wi-Fi 6E provides better performance in crowded wireless environments. If you have a compatible router and want the fastest possible wireless speeds, the MSI board is the better option.
cpu socket
Both motherboards utilize the LGA 1700 socket, ensuring compatibility with Intel 12th, 13th, and 14th Gen Core processors. This shared socket type means you can use the same CPUs on either board. The MSI PRO Z790-P WiFi is a Z790 chipset board, while the ASUS Prime B760M-A AX uses the B760 chipset. Both support the same processor generations. Since the CPU compatibility is identical, this aspect does not create a winner. You can choose based on other features without worrying about processor support.
Which Motherboard Fits Your Build
Users needing maximum expansion slots
Choose the MSI PRO ATX if you plan to install multiple graphics cards or add several expansion cards. Its larger ATX form factor provides more PCIe slots for future upgrades. The PCIe 5.0 support also ensures you are ready for next-generation high-speed storage and GPU technologies without needing to replace the board soon.
Those building in compact cases
Select the ASUS Prime Micro-ATX if your computer case has limited space. This smaller board fits into tighter chassis designs while still offering essential features. It supports DDR5 memory and includes Wi-Fi 6 and 2.5GbE Ethernet, making it a practical choice for smaller builds that do not require extensive expansion capabilities.
Users wanting latest Wi-Fi standard
The MSI PRO board includes Wi-Fi 6E, which offers less congestion on the 6GHz band compared to standard Wi-Fi 6. This can provide smoother streaming and lower latency for gaming. If you live in a dense area with many wireless networks, this newer standard provides a tangible advantage in connection stability and speed.
Budget-conscious builders prioritizing value
The ASUS Prime B760M-A AX supports 12th and 13th Gen Intel processors and DDR5 memory at a typically lower price point. It includes two M.2 slots and sufficient USB ports for most users. If you do not need PCIe 5.0 or Wi-Fi 6E, this board delivers solid performance for standard desktop tasks and gaming.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | MSI PRO ATX DDR5 Motherboard | Standard ATX builds with Intel 12th-14th Gen CPUs | Check price of MSI PRO ATX DDR5 Motherboard on Amazon |
| 2 | ASUS Prime Micro-ATX DDR5 Motherboard | Compact builds needing Wi-Fi 6 and DDR5 | Check price of ASUS Prime Micro-ATX DDR5 Motherboard on Amazon |
The products compared
MSI PRO ATX DDR5 Motherboard
Best for: Standard ATX builds with Intel 12th-14th Gen CPUs
- Form Factor
- ATX (what this guide is about)
- CPU Socket
- LGA 1700
- Memory Type
- DDR5
- PCIe Version
- PCIe 5.0
- Wi-Fi Standard
- Wi-Fi 6E
- Ethernet Speed
- 2.5Gbps
View on Amazon: MSI PRO ATX DDR5 Motherboard Affiliate link
This MSI PRO Z790-P WiFi is an ATX motherboard built for 12th, 13th, and 14th Gen Intel processors on the LGA 1700 socket. It supports DDR5 memory up to 128GB and features PCIe 5.0 for fast data transfer. You get Wi-Fi 6E, Bluetooth 5.3, and 2.5Gbps Ethernet for reliable connectivity. It suits builders who need a full-sized board with modern standards.
Pros
- Supports 12th, 13th, and 14th Gen Intel CPUs
- Four DDR5 slots with up to 128GB capacity
- PCIe 5.0 interface for high-speed expansion
- Built-in Wi-Fi 6E and Bluetooth 5.3
Cons
- Larger ATX form factor requires a compatible case
- Does not support older DDR4 memory modules
- No mention of integrated video outputs in specs
Good fit if
- You need a full-sized ATX motherboard for a standard PC case
- You plan to use DDR5 RAM for future-proofing
- You want built-in Wi-Fi 6E and Bluetooth 5.3
Skip if
- You are building in a compact case that only fits Micro-ATX boards
- You want to reuse existing DDR4 memory sticks
- You need a budget-focused board with fewer features
Verdict: MSI PRO Z790-P WiFi ATX is a solid mid-range option for standard ATX builds using Intel's latest processors. It fits users who prioritize modern connectivity and DDR5 support over compact sizing.
ASUS Prime Micro-ATX DDR5 Motherboard
Best for: Compact builds needing Wi-Fi 6 and DDR5
- Form Factor
- Micro-ATX (what this guide is about)
- CPU Socket
- LGA 1700
- Memory Type
- DDR5
- PCIe Version
- PCIe 4.0
- M.2 Slots
- 2
- Wi-Fi Standard
- Wi-Fi 6
View on Amazon: ASUS Prime Micro-ATX DDR5 Motherboard Affiliate link
This microATX motherboard uses the LGA 1700 socket for 12th and 13th Gen Intel processors. It supports DDR5 memory up to 64GB and offers PCIe 4.0 speeds. You get Wi-Fi 6 and 2.5 Gb Ethernet for fast networking. Two M.2 slots provide storage expansion. The compact 10.8 by 10.4 inch design fits smaller cases while keeping essential connectivity options like USB 3.2 Gen 2.
Pros
- Supports DDR5 RAM up to 64GB
- Includes Wi-Fi 6 and 2.5 Gb LAN
- Features two PCIe 4.0 M.2 slots
- LGA 1700 socket for 12th/13th Gen CPUs
Cons
- Micro-ATX form factor limits expansion slots
- Only two M.2 storage slots available
- No mention of USB 2.0 headers or rear audio jacks in data
Good fit if
- You need a compact build with modern DDR5 support
- You want built-in Wi-Fi 6 without extra cards
- You are building with 12th or 13th Gen Intel CPUs
Skip if
- You require full ATX expansion for multiple GPUs
- You need more than two M.2 drives
- You are using older DDR4 memory modules
Verdict: ASUS Prime B760M-A AX Micro-ATX is a compact option for users who prioritize DDR5 speed and Wi-Fi 6 in a smaller footprint. It suits builders who want modern connectivity without the bulk of a full-size board.
Specifications side by side
| Spec | MSI PRO ATX DDR5 Motherboard | ASUS Prime Micro-ATX DDR5 Motherboard |
|---|---|---|
| CPU Socket | LGA 1700 | LGA 1700 |
| Form Factor | ATX | microATX |
| Memory Type | DDR5 | DDR5 |
| PCIe Version | PCIe 5.0 | PCIe 4.0 |
| M.2 Slots | not stated | 2 |
| Wi-Fi Standard | Wi-Fi 6E | Wi-Fi 6 |
| Ethernet Speed | 2.5Gbps | 2.5 Gb |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 6 |
| Dimensions | 5.91 × 1.57 × 5.91 inches | 10.8 × 10.4 × 2.58 inches |
| Weight | 1.25 pounds | 3.11 pounds |
| Model | PRO Z790-P WiFi ProSeries | PRIME B760M-A AX |
| Size | not stated | PRIME B760M-A AX |
| Color | not stated | BLACK |
Frequently asked questions
Does ATX offer more PCIe slots than Micro-ATX?
Yes, the larger ATX form factor typically provides more expansion slots. The MSI PRO ATX board follows the standard ATX layout, which allows for multiple graphics cards or additional expansion cards. This extra space supports better future upgrades compared to the more compact Micro-ATX design found in the ASUS Prime model.
Can Micro-ATX motherboards support DDR5 memory?
Yes, Micro-ATX boards can support DDR5 memory. The ASUS Prime Micro-ATX motherboard is designed for DDR5 speed, offering modern performance in a smaller footprint. You do not need to sacrifice the latest memory technology just to save space in your computer case.
What is the difference in physical size between ATX and Micro-ATX?
ATX motherboards are significantly larger than Micro-ATX boards. The standard ATX layout measures 12.0 by 9.6 inches, providing ample room for components. In contrast, the Micro-ATX option is much more compact, making it suitable for smaller cases where space is limited.
Do both form factors support Wi-Fi connectivity?
Yes, both options include built-in wireless capabilities. The ATX board features Wi-Fi 6E for faster and more reliable connections. The Micro-ATX alternative includes Wi-Fi 6, which also provides strong wireless performance. You get modern connectivity regardless of the size you choose.
Is 2.5GbE Ethernet available on both board types?
Yes, both motherboards include 2.5GbE Ethernet ports. This feature ensures faster wired network speeds compared to standard Gigabit connections. You get this improved networking capability whether you select the larger ATX board or the smaller Micro-ATX option for your build.
Which motherboard is better for Intel 12th to 14th Gen CPUs?
Both boards support Intel 12th through 14th Gen processors. They both use the LGA 1700 socket, ensuring compatibility with these modern CPUs. You can choose either form factor based on your case size and expansion needs without worrying about processor compatibility.