Best AM4 Motherboards to Buy in 2026
AM4 remains a top-tier budget platform for gaming builds and cheap CPU upgrades. Here are the best AM4 motherboards actually worth buying right now.
The Best AM4 Motherboards: Quick Picks
Buying an AM4 motherboard today is all about value. AMD's AM5 platform handles the high-end market now, but pairing a cheap AM4 board with a Ryzen 7 5700X3D or Ryzen 5 5600 creates one of the most cost-effective 1080p and 1440p gaming systems you can build. Here are our top recommendations across budgets:
- Best Overall AM4 Board: ASUS ROG Strix B550-F Gaming WiFi II
- Best Mid-Range Workhorse: MSI MAG B550 Tomahawk Max WiFi
- Best Budget Pick: ASRock B550M Pro4
- Best Ultra-Budget / Used Pick: MSI B450 Tomahawk Max
- Best Mini-ITX: ASUS ROG Strix B550-I Gaming
- Best Enthusiast Board (Used/Clearance): ASUS ROG Crosshair VIII Dark Hero
Why Buy AM4 Today? The Reality Check
Let us be clear: nobody should drop $300 on a brand-new high-end AM4 motherboard anymore. If you have $400 or more to spend on a CPU and motherboard combo, walk over to AM5, buy an entry-level B650 board, and grab a Ryzen 5 7600 with DDR5 RAM.
AM4 exists today for two specific types of builders: someone upgrading an aging Ryzen 1000/2000 setup who wants a drop-in 8-core CPU upgrade, or someone building a dedicated budget gaming rig under $700. DDR4 memory kits cost next to nothing—often under $55 for 32GB of DDR4-3600—and late-generation AM4 chips like the Ryzen 7 5700X3D trade blows with modern mid-range CPUs in gaming workloads.
For 90% of builders on this socket, a solid B550 board is the sweet spot. It delivers PCIe 4.0 support for your primary graphics card and M.2 SSD, avoids the noisy chipset cooling fan found on early X570 models, and costs significantly less.
Top AM4 Motherboards Reviewed
1. ASUS ROG Strix B550-F Gaming WiFi II – Best Overall
If you want a dependable, full-featured ATX board that handles any AM4 CPU without breaking a sweat, the ASUS ROG Strix B550-F Gaming WiFi II is our default recommendation. Its 12+2 power stage VRM design barely warms up even when running an unrestricted 16-core Ryzen 9 5950X under heavy rendering loads.
You get an Intel 2.5Gb Ethernet port, onboard Wi-Fi 6E, plenty of USB connectivity on the rear I/O shield, and two M.2 slots (one PCIe 4.0, one PCIe 3.0). ASUS also includes a handy BIOS Flashback button on the rear panel, so you never have to worry about CPU compatibility out of the box. Unless you find a massive clearance discount on an X570 board, this is the most balanced AM4 board on the market.
2. MSI MAG B550 Tomahawk Max WiFi – Best Mid-Range Alternative
MSI's Tomahawk line has earned its reputation through sheer reliability and thermal performance. The B550 Tomahawk Max WiFi delivers beefy extended heatsinks over a 10+2+1 power delivery setup, matching boards that cost $50 more in pure thermal headroom.
Rear I/O gives you dual LAN (2.5G + 1G), Wi-Fi 6E, and a clear BIOS Flashback button. The onboard audio relies on the Realtek ALC1200 codec, which is plenty clean for gaming headsets. Our only minor complaint: it has fewer high-speed USB ports on the back panel compared to the ASUS Strix, but it makes up for it with lower street pricing and bulletproof VRMs.
3. ASRock B550M Pro4 – Best Budget Micro-ATX
On a tight budget, the ASRock B550M Pro4 punches well above its weight class. Usually selling between $90 and $110, this Micro-ATX board includes dual M.2 slots, four DDR4 DIMM slots, decent VRM heatsinks, and even a pre-installed M.2 armor shield for your primary drive.
It will not win overclocking competitions with a 5950X, but for a Ryzen 5 5600, 5600X3D, or 5700X, the power delivery handles everyday gaming without throttling. Just note that it lacks integrated Wi-Fi (though it has an empty M.2 Key-E slot for adding an inexpensive card) and does not feature a dedicated BIOS Flashback button.
4. ASUS ROG Crosshair VIII Dark Hero – Best High-End Enthusiast Board
We would skip almost every high-end X570 board today, with one exception: if you are an extreme overclocker or audio enthusiast picking up used flagship hardware, the Dark Hero is the pinnacle of the AM4 platform. Unlike first-generation X570 boards, the Dark Hero features a completely passive chipset heatsink—meaning zero tiny fan noise.
Its Dynamic OC Switcher allows the board to transition between single-threaded Precision Boost Overdrive and manual all-core overclocks automatically. It packs 16 teamed power stages, high-grade SupremeFX audio, dual Gigabit LAN, and an abundance of USB 3.2 Gen 2 ports. Buy it used if you find a bargain; pass on it if sellers demand original retail pricing.
AM4 Chipset Comparison
Choosing between B450, B550, and X570 comes down to lane speeds and price. Here is how the key AM4 chipsets stack up:
| Feature | B450 | B550 | X570 |
|---|---|---|---|
| Primary PCIe Lane Speed | PCIe 3.0 | PCIe 4.0 | PCIe 4.0 |
| General Purpose Lanes | PCIe 2.0 | PCIe 3.0 | PCIe 4.0 |
| Multi-GPU Support | CrossFire only | CrossFire / SLI (select) | CrossFire & SLI |
| Chipset Cooling | Passive | Passive | Active Fan (most models) |
| Ryzen 5000 Support | BIOS update required | Native / Flashback | Native / Flashback |
| Recommended Budget | Under $75 (Used) | $90 – $150 | $130 – $180 (Used) |
AM4 Buying Advice: What Actually Matters
When shopping for an AM4 board right now, avoid getting distracted by marketing fluff. Focus on these three core features:
- BIOS Flashback: A physical button on the rear I/O that lets you update the motherboard BIOS using just a USB flash drive. This is crucial if you buy an older board revision that does not support Ryzen 5000 CPUs out of the box.
- VRM Quality: For 6-core CPUs like the Ryzen 5 5600, almost any board works. If you plan to drop in a Ryzen 7 5700X3D, 5800X3D, or Ryzen 9 5900X, insist on a board with heatsink-covered VRMs (at least an 8+2 or 10+2 phase configuration) to avoid thermal throttling.
- Storage Layout: If you run multiple NVMe drives, check lane allocation. On many budget B550 boards, populating the second M.2 slot will disable two SATA ports or drop your secondary PCIe slot speed.
FAQ
Is building an AM4 PC still worth it?
Yes, but only for budget builds under $700 or drop-in upgrades to existing AM4 systems. Late-stage chips like the Ryzen 7 5700X3D combined with cheap B550 boards and DDR4 memory offer incredible price-to-performance for 1080p and 1440p gaming rigs.
What is the best AM4 motherboard for the Ryzen 7 5700X3D or 5800X3D?
The ASUS ROG Strix B550-F Gaming WiFi II and MSI MAG B550 Tomahawk Max WiFi are the two best choices. Both feature capable VRM stages and substantial heatsinks that keep X3D chips running at maximum sustained boost clocks without thermal limits.
Can I run a Ryzen 5000 CPU on an older B450 motherboard?
Yes, virtually all major B450 motherboards support Ryzen 5000 series processors via an AGESA BIOS update. Make sure the board has an updated BIOS installed before mounting the CPU, or verify that the board includes a BIOS Flashback button so you can update firmware without an older CPU.