Last reviewed and updated: August 14, 2026

A motherboard is the foundation that allows your CPU, graphics card, memory, storage and peripherals to work together. But unlike a CPU or GPU, spending more on the motherboard does not automatically make your PC substantially faster.

The goal is therefore not to buy the motherboard with the longest specification sheet. It is to buy the least expensive board that provides the compatibility, power delivery, expansion, connectivity and quality your particular build needs — without creating limitations you will regret later.

A gaming PC with one graphics card and two NVMe SSDs needs something very different from a creator workstation with four SSDs, capture hardware, high-speed networking and several external devices.

How to choose a motherboard in four steps

1. Start with your CPU and socket

CPU compatibility is the first requirement. The processor must physically match the socket, and the motherboard firmware must support the exact CPU.

If you are building a new PC, choosing the CPU first makes the motherboard decision dramatically easier. If you already have the processor, search by its exact model rather than relying on a broad label such as “Ryzen 7” or “Core Ultra 7.”

AMD AM5

AMD’s current mainstream desktop platform is Socket AM5. Ryzen 7000, Ryzen 8000 and Ryzen 9000 desktop processors belong to the AM5 ecosystem.

Unlike older AM4 Ryzen processors, AM5 uses an LGA — Land Grid Array — socket. The delicate contact pins are inside the motherboard socket rather than protruding from the CPU.

AM5 motherboards use DDR5 memory. Both AMD 600-series and 800-series AM5 boards can support AM5 processors, although a BIOS update may be required when installing a later CPU on an older motherboard.

Intel LGA1851

Intel Core Ultra 200S and 200S Plus desktop processors use LGA1851 with DDR5 memory.

Current mainstream Intel 800-series desktop chipsets include H810, B860 and Z890.

LGA1851 should not be confused with LGA1700, which was used by Intel’s 12th-, 13th- and 14th-generation mainstream desktop processors. The two processor families are not socket-compatible.

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2. Choose the chipset based on features — not status

After the socket, the chipset is the next major decision. It helps determine how much platform I/O, expansion and tuning capability the motherboard manufacturer has available.

A higher-end chipset does not automatically make the same CPU faster in normal gaming or desktop workloads. You are primarily paying for connectivity, expansion and tuning options.

AMD: B840 vs B850 vs X870 vs X870E

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For many modern gaming PCs, B850 is where I would start. It gives you a current AM5 feature set without automatically paying for high-end connectivity you may never use.

X870 becomes more attractive if USB4 and additional high-speed I/O are genuinely useful. X870E makes the most sense when the build itself needs additional expansion rather than simply because it sits at the top of the chipset stack.

Older B650, B650E, X670 and X670E boards can still make excellent AM5 choices when their feature set, BIOS support and price are right.

See our Best B850 Motherboards , Best X870 Motherboards and Best B650 Motherboards guides for specific board recommendations.

Intel: H810 vs B860 vs Z890

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B860 is a logical starting point for many Core Ultra systems if CPU/BCLK tuning is not part of the plan.

Z890 makes sense when you genuinely need processor tuning or the broader I/O and expansion capability available from Intel’s enthusiast chipset.

For specific boards, see our Best Z890 Motherboards guide.

3. Choose a motherboard that physically fits your build

ATX, Micro-ATX and Mini-ITX do not simply describe motherboard dimensions. They also change how much room the manufacturer has for expansion slots, M.2 drives, memory slots, connectors and power delivery.

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ATX is the safest default when you have no size restriction. Micro-ATX can offer excellent value when you do not need several expansion cards.

Mini-ITX should normally be chosen because you actually want a small PC. Compact boards often cost more while providing fewer physical slots.

4. Check memory support before buying RAM

Current AM5 and LGA1851 desktop motherboards use DDR5. DDR4 and DDR5 are physically and electrically different, so they cannot be interchanged.

Intel LGA1700 is more complicated because both DDR4 and DDR5 motherboards were produced. You must check the exact board model.

Also check:

• Maximum memory capacity
• Number of DIMM slots
• Supported memory profiles such as AMD EXPO or Intel XMP
• The board’s QVL for unusual high-speed or high-capacity kits
• Expected speeds with two vs four DIMMs

5. Count M.2 and PCIe slots — then check what they share

This is one of the biggest differences between motherboards that otherwise look almost identical.

List everything you expect the system to contain:

• graphics card
• NVMe SSDs
• capture card
• sound or audio hardware
• 10Gb networking card
• storage/HBA card
• other PCIe devices

Then read the motherboard manual instead of merely counting the physical slots.

Lane sharing matters

CPUs and chipsets provide a finite number of PCIe lanes. Because of that, some motherboard connectors share bandwidth.

Installing an SSD in a particular M.2 slot can sometimes reduce another slot’s bandwidth, disable a SATA connector or alter the lane configuration available to another PCIe device.

Do you need PCIe 5.0 everywhere?

Usually not.

PCIe 5.0 provides more bandwidth, but that does not mean every gaming system benefits from paying for Gen 5 connectivity across every slot.

For a PC with one graphics card and one or two NVMe SSDs, a sensible lane layout can matter much more than having the largest possible number of Gen 5 connections.

6. Match the VRM to the CPU — don’t buy by phase count alone

The voltage-regulation system supplies your processor with stable power, making motherboard power delivery particularly important for power-hungry CPUs and sustained workloads.

But a larger advertised phase count does not automatically mean one board is better.

Ask:

• Can it comfortably run the exact CPU under sustained load?
• What power stages and controller are being used?
• How effective are the VRM heatsinks?
• Does your case provide reasonable airflow?
• Will the CPU run at stock settings or be manually tuned?

Once the board comfortably handles the CPU, dramatically overbuilt power delivery usually buys additional thermal and electrical headroom rather than a dramatic improvement in game performance.

7. Count the ports and networking you will actually use

Rear I/O affects your PC every day, yet it is one of the easiest motherboard features to overlook.

Count your:

• keyboard and mouse
• headset, DAC or audio interface
• microphone
• webcam
• controllers
• external SSDs
• VR hardware
• capture devices
• other USB accessories

Then count how many rear ports the exact board provides and what speeds they support.

USB4 and Thunderbolt

High-speed USB4 or Thunderbolt connectivity can be extremely useful for docks, fast external SSDs and professional peripherals.

If your setup consists mainly of a keyboard, mouse and headset, paying a large premium solely for those connections may make little sense.

Ethernet and Wi-Fi

Faster networking only helps when the rest of the network can use it. A motherboard with 10Gb Ethernet does not make a 1Gb network operate at 10Gb.

8. BIOS and troubleshooting features are worth paying for

Some of the best motherboard features add exactly zero FPS.

They can still save hours of frustration.

• BIOS Flashback / Q-Flash Plus / Flash BIOS: can simplify BIOS updates and CPU compatibility.
• Clear CMOS: useful after unstable memory or tuning settings.
• Debug LEDs: quickly narrow a failed boot down to CPU, RAM, GPU or boot device.
• POST-code display: valuable on enthusiast and workstation systems.
• Tool-free M.2 installation: useful when adding or replacing SSDs.
• Easy GPU-release mechanisms: increasingly useful with large graphics cards and CPU coolers.
• Enough fan and pump headers: prevents unnecessary splitters and controllers.

9. Decide whether motherboard audio matters to you

Integrated audio is adequate for many gaming headsets, speakers and normal desktop use.

If you already use a USB DAC, dedicated audio interface or audio through HDMI/DisplayPort, paying substantially more solely for upgraded motherboard audio hardware may provide little benefit.

If integrated audio matters, check both the codec and the actual connections. Some boards provide very few analog outputs despite advertising a relatively high-end audio implementation.

10. Motherboard features you may be overspending on

11. Match the motherboard to the type of PC

Gaming PC

Prioritize correct CPU support, adequate power delivery, a proper GPU slot, enough M.2 storage, stable memory support, networking and enough USB.

If choosing a slightly cheaper motherboard allows a meaningful GPU upgrade, the GPU will normally have much more impact on gaming performance.

Creator or workstation PC

Expansion matters more. Count storage devices, add-in cards, high-speed networking and external peripherals before choosing the board.

USB4/Thunderbolt, more PCIe lanes, stronger networking and additional M.2 slots can justify paying for a higher-tier motherboard here.

Small-form-factor PC

Start with the case. Mini-ITX limits expansion and normally gives you two DIMM positions and one main PCIe slot, while physical cooler, RAM and cable clearance become more important.

Upgrade-focused PC

Useful flexibility matters more than trying to “future-proof” every specification.

• a spare M.2 slot
• appropriate RAM capacity
• a current CPU platform
• sensible CPU power headroom
• the ports you expect to need
• BIOS Flashback or a similar update feature

Find the best motherboard for your CPU

If you already know which processor you are buying, you do not need to compare every motherboard platform from scratch. Use the CPU-specific guides below to jump directly to motherboards that make sense for that processor.

Current platforms are shown first. Older CPU guides remain available below for upgrades and existing systems, but I would generally start with AM5 or LGA1851 when planning an entirely new current-generation PC.

Popular previous-generation motherboard guides

Building or upgrading an existing AM4 or LGA1700 system? These older platforms can still make sense when you already own compatible parts or find the right hardware at a good price.

Motherboard buying FAQ