Buying Guide

The Best Motherboards for the Ryzen 7 7800X3D

Six AM5 boards for the Ryzen 7 7800X3D gaming chip compared on M.2 slots, networking, size and price.

By , PC Hardware Editor

12 min read6 products evaluated

PC components laid out on a workbench ready for a build
Illustrative image

The Ryzen 7 7800X3D is an eight-core gaming chip that draws modest power. It gains nothing from a flagship board, so choose by ports, storage and case size.

We compared 6 boards for it. This is a research-based comparison built from maker specifications and retailer listings; we did not test these parts ourselves.

Quick Picks

Which of the 6 picks to look at first. Tap a name for the full analysis.

  1. Best All-Round

    MSI MAG B850 Tomahawk MAX WiFi

    Four M.2 slots, 5Gbps LAN and Wi-Fi 7 on B850.

    Best for: Most 7800X3D builds.

    Check price for MSI MAG B850 Tomahawk MAX WiFi on Amazon (opens in a new tab)
  2. Solid Alternative

    ASUS ROG Strix B850-A Gaming WiFi

    The Strix B850-A offers four M.2 slots, a 14+2+2 layout, Wi-Fi 7 and a white finish.

    Best for: Buyers who want 4 m.2 slots for ssd expansion.

    Check price for ASUS ROG Strix B850-A Gaming WiFi on Amazon (opens in a new tab)
  3. Worth Considering

    MSI MAG X870 Tomahawk WiFi

    The X870 Tomahawk pairs 5Gbps Ethernet with Wi-Fi 7 and USB4, covering the connectivity most builders want for years.

    Best for: Buyers who want 5gbps wired ethernet.

    Check price for MSI MAG X870 Tomahawk WiFi on Amazon (opens in a new tab)
  4. Best Budget

    MSI MAG B650 Tomahawk WiFi

    Wi-Fi 6E and 2.5Gbps LAN on B650.

    Best for: Spending more on the GPU.

    Check price for MSI MAG B650 Tomahawk WiFi on Amazon (opens in a new tab)
  5. Best Mini-ITX

    ASUS ROG Strix B850-I Gaming WiFi

    Wi-Fi 7 and a 10+2+1 layout on Mini-ITX.

    Best for: Small-form-factor gaming PCs.

    Check price for ASUS ROG Strix B850-I Gaming WiFi on Amazon (opens in a new tab)
  6. Well-Rounded Choice

    MSI B850 Gaming Plus WiFi

    The B850 Gaming Plus WiFi brings 5Gbps Ethernet and Wi-Fi 7 to an entry-level B850 price, with a PCIe 5.0 M.2 slot.

    Best for: Buyers who want 5gbps wired ethernet.

    Check price for MSI B850 Gaming Plus WiFi on Amazon (opens in a new tab)

Our Picks

Best All-Round1 of 6

MSI MAG B850 Tomahawk MAX WiFi

The B850 Tomahawk MAX covers what most Ryzen builds need: four M.2 slots, 5Gbps Ethernet and Wi-Fi 7.

Best for

Most 7800X3D builds.

Skip if

Price-first buyers should look at the B650 Tomahawk, which cost less when we checked.
MSI MAG B850 Tomahawk MAX WiFi

Why we like it

It matches the Strix B850-A on M.2 slot count (4). It matches the X870 Tomahawk and the B850 Gaming Plus on wired network speed (5Gbps). It also offers a PCIe 5.0 x16 slot with Steel Armor and a rear USB 20Gbps Type-C port.

It uses AMD's AM5 socket, so it takes Ryzen 7000, 8000 and 9000 chips; a board built before a CPU's launch may need a BIOS update first, so check whether it supports BIOS Flashback. Check the manual for which M.2 slots share lanes with SATA ports or the second PCIe slot before filling them all. It was priced above the Strix B850-A and below the X870 Tomahawk at the time of writing.

Key specs

M.2 slots
4
Wired LAN
5Gbps
Wi-Fi
Wi-Fi 7
Form factor
ATX
Socket
AM5

Pros

  • 4 M.2 slots for SSD expansion
  • 5Gbps wired Ethernet
  • Wi-Fi 7 built in
  • PCIe 5.0 x16 slot with Steel Armor

Cons

  • Costs more than the B650 Tomahawk at the time of writing

Solid Alternative2 of 6

ASUS ROG Strix B850-A Gaming WiFi

The Strix B850-A offers four M.2 slots, a 14+2+2 layout, Wi-Fi 7 and a white finish.

Best for

Buyers who want 4 m.2 slots for ssd expansion.

Skip if

Skip it if price comes first: the B650 Tomahawk cost less when we checked.
ASUS ROG Strix B850-A Gaming WiFi

Why we like it

Its 14+2+2 VRM is rated at 80A per stage, and heatsinks bridge to the VRMs with thermal pads. ASUS AI Advisor simplifies setup. It matches the B850 Tomahawk MAX on M.2 slot count (4).

It matches the B650 Tomahawk and the Strix B850-I on wired network speed (2.5Gbps). It also comes with a rear USB 20Gbps port. It uses AMD's AM5 socket, so it takes Ryzen 7000, 8000 and 9000 chips; a board built before a CPU's launch may need a BIOS update first, so check whether it supports BIOS Flashback.

Check the manual for which M.2 slots share lanes with SATA ports or the second PCIe slot before filling them all. It was priced above the B850 Gaming Plus and below the B850 Tomahawk MAX at the time of writing.

Key specs

M.2 slots
4
Wired LAN
2.5Gbps
Wi-Fi
Wi-Fi 7
Power stages
14+2+2
Form factor
ATX
Socket
AM5

Pros

  • 4 M.2 slots for SSD expansion
  • Wi-Fi 7 built in
  • 14+2+2 power stage layout
  • Rear USB 20Gbps port

Cons

  • Costs more than the B650 Tomahawk at the time of writing

Worth Considering3 of 6

MSI MAG X870 Tomahawk WiFi

The X870 Tomahawk pairs 5Gbps Ethernet with Wi-Fi 7 and USB4, covering the connectivity most builders want for years.

Best for

Buyers who want 5gbps wired ethernet.

Skip if

Pass if a published M.2 slot count matters; this one has none.
MSI MAG X870 Tomahawk WiFi

Why we like it

It has 5G LAN, an extended VRM heatsink and isolated Audio Boost 5. It matches the B850 Tomahawk MAX and the B850 Gaming Plus on wired network speed (5Gbps). You get an X870 chipset here, which sets it apart from the B850 Gaming Plus and its a B850 chipset.

It also offers a PCIe 5.0 M.2 slot and Bluetooth 5.4 alongside Wi-Fi 7. It uses AMD's AM5 socket, so it takes Ryzen 7000, 8000 and 9000 chips; a board built before a CPU's launch may need a BIOS update first, so check whether it supports BIOS Flashback. It was priced above the B850 Tomahawk MAX and below the Strix B850-I at the time of writing.

Key specs

Wired LAN
5Gbps
Wi-Fi
Wi-Fi 7
USB4
Yes
Form factor
ATX
Socket
AM5
Chipset
X870

Pros

  • 5Gbps wired Ethernet
  • Wi-Fi 7 built in
  • USB4 ports on the rear panel
  • PCIe 5.0 M.2 slot

Cons

  • No published M.2 slot count
  • Costs more than the B650 Tomahawk at the time of writing

The catch

There is no published M.2 slot count figure, whereas the B850 Tomahawk MAX offers 4.

Best Budget4 of 6

MSI MAG B650 Tomahawk WiFi

The B650 Tomahawk is the steady middle of the B650 range: Wi-Fi 6E, 2.5Gbps Ethernet and display outputs on an ATX board.

Best for

Spending more on the GPU.

Skip if

Look at the others if this bothers you: wi-Fi 6E rather than Wi-Fi 7.
MSI MAG B650 Tomahawk WiFi

Why we like it

It has no PCIe 5.0 graphics slot, which matters little for today's cards. It matches the Strix B850-A and the Strix B850-I on wired network speed (2.5Gbps). No other pick in this guide offers a wi-Fi 6E; compare the B850 Gaming Plus, which has a wi-Fi 7.

You get a B650 chipset here, which sets it apart from the B850 Gaming Plus and its a B850 chipset. It also offers Lightning M.2 support, Bluetooth 5.3 alongside Wi-Fi 6E and HDMI and DisplayPort outputs for Ryzen chips with graphics. It uses AMD's AM5 socket, so it takes Ryzen 7000, 8000 and 9000 chips; a board built before a CPU's launch may need a BIOS update first, so check whether it supports BIOS Flashback. It cost the least of the 6 picks at the time of writing, with the B850 Gaming Plus the next step up.

Key specs

Wired LAN
2.5Gbps
Wi-Fi
Wi-Fi 6E
Form factor
ATX
Socket
AM5
Chipset
B650

Pros

  • Lightning M.2 support
  • Bluetooth 5.3 alongside Wi-Fi 6E
  • HDMI and DisplayPort outputs for Ryzen chips with graphics
  • B650 chipset, the only one here

Cons

  • Wi-Fi 6E rather than Wi-Fi 7
  • No published M.2 slot count

The catch

There is no published M.2 slot count figure, whereas the B850 Tomahawk MAX offers 4.

Best Mini-ITX5 of 6

ASUS ROG Strix B850-I Gaming WiFi

The Strix B850-I fits Wi-Fi 7, 2.5Gbps LAN and a 10+2+1 layout onto a Mini-ITX board for small builds.

Best for

Small-form-factor gaming PCs.

Skip if

Skip it if this is a deal-breaker for you: only 2 M.2 slots.
ASUS ROG Strix B850-I Gaming WiFi

Why we like it

On M.2 slot count it trails the group at 2, while the B850 Tomahawk MAX offers 4. On wired network speed it ties with the Strix B850-A and the B650 Tomahawk at 2.5Gbps. You also get a rear USB 20Gbps port and a PCIe 5.0 graphics slot.

It uses AMD's AM5 socket, so it takes Ryzen 7000, 8000 and 9000 chips; a board built before a CPU's launch may need a BIOS update first, so check whether it supports BIOS Flashback. As a Mini-ITX board it has one PCIe x16 slot and two memory slots, so plan for a two-stick memory kit and check the case's cooler and GPU limits. Check the manual for which M.2 slots share lanes with SATA ports or the second PCIe slot before filling them all. It was the most expensive pick when we checked, so weigh what it adds over the X870 Tomahawk.

Key specs

M.2 slots
2
Wired LAN
2.5Gbps
Wi-Fi
Wi-Fi 7
Power stages
10+2+1
Form factor
Mini-ITX
Socket
AM5

Pros

  • Wi-Fi 7 built in
  • Rear USB 20Gbps port
  • PCIe 5.0 graphics slot
  • Wi-Fi 7 and a 10+2+1 layout on Mini-ITX

Cons

  • Only 2 M.2 slots
  • M.2 slot count trails the B850 Tomahawk MAX (4)
  • Wired network speed trails the B850 Tomahawk MAX (5Gbps)

The catch

If M.2 slot count is your priority, the B850 Tomahawk MAX (4) is the stronger choice.

Well-Rounded Choice6 of 6

MSI B850 Gaming Plus WiFi

The B850 Gaming Plus WiFi brings 5Gbps Ethernet and Wi-Fi 7 to an entry-level B850 price, with a PCIe 5.0 M.2 slot.

Best for

Buyers who want 5gbps wired ethernet.

Skip if

Price-first buyers should look at the B650 Tomahawk, which cost less when we checked.
MSI B850 Gaming Plus WiFi

Why we like it

Three M.2 slots cover most gaming builds. Its 3 M.2 slot count ranks third of 4 here, behind the B850 Tomahawk MAX (4) and ahead of the Strix B850-I (2). It matches the B850 Tomahawk MAX and the X870 Tomahawk on wired network speed (5Gbps).

You get a B850 chipset here, which sets it apart from the B650 Tomahawk and its a B650 chipset. You also get memory support to DDR5-8200 (OC). It uses AMD's AM5 socket, so it takes Ryzen 7000, 8000 and 9000 chips; a board built before a CPU's launch may need a BIOS update first, so check whether it supports BIOS Flashback.

Check the manual for which M.2 slots share lanes with SATA ports or the second PCIe slot before filling them all. It was priced above the B650 Tomahawk and below the Strix B850-A at the time of writing.

Key specs

M.2 slots
3
Wired LAN
5Gbps
Wi-Fi
Wi-Fi 7
Form factor
ATX
Socket
AM5
Chipset
B850

Pros

  • 5Gbps wired Ethernet
  • Wi-Fi 7 built in
  • PCIe 5.0 M.2 slot
  • Memory support to DDR5-8200 (OC)

Cons

  • Costs more than the B650 Tomahawk at the time of writing

How We Chose These Ryzen 7 7800X3D Motherboards

Alex Morgan compared the manufacturer specifications, connectivity, warranty terms and compatibility of every pick. Figures come from the makers unless a third-party source is named; we did not test these products ourselves.

How these picks were ranked
We lined up six boards on M.2 slot count, wired network speed, wi-Fi and power stages from manufacturer specifications. We did not test them in-house, and M.2 slot count and power stages are missing for at least one pick.
The shared baseline
All 6, from the B850 Tomahawk MAX to the B850 Gaming Plus, state wired network speed, wi-Fi and form factor and share AM5 socket.
Where the specs have gaps
The X870 Tomahawk and the B650 Tomahawk give no M.2 slot count; the B850 Tomahawk MAX, the X870 Tomahawk, the B650 Tomahawk and the B850 Gaming Plus give no power stages.
Price range
At our last check the picks ran from the B650 Tomahawk ($150 to $250) to the Strix B850-I ($250 to $500).

What to Look for in a Ryzen 7 7800X3D Motherboard

Key buying criteria so you get the right fit the first time.

  1. How much wired network speed you need

    The B850 Tomahawk MAX tops wired network speed at 5Gbps and the Strix B850-I sits lowest at 2.5Gbps; 3 picks share the top figure. The B850 Tomahawk MAX is the pick for wired network speed.

  2. M.2 slot count across these picks

    Across these 4 picks M.2 slot count spans 2 (the Strix B850-I) to 4 (the B850 Tomahawk MAX). The Strix B850-A comes second at 4, in the same price tier as the B850 Tomahawk MAX. The X870 Tomahawk and the B650 Tomahawk give no M.2 slot count figure, so 4 of 6 picks are compared here.

  3. Power stages

    The Strix B850-A lists 14+2+2; the Strix B850-I lists 10+2+1. Sort out power stages before price: it splits 2 stated picks into groups of 1 and 1.

  4. Features beyond the spec table

    The B650 Tomahawk: Bluetooth 5.3 alongside Wi-Fi 6E. The Strix B850-I: a PCIe 5.0 graphics slot. The B850 Gaming Plus: memory support to DDR5-8200 (OC).

  5. Budget

    $150 to $250 buys the B650 Tomahawk, the B850 Gaming Plus, the Strix B850-A, the B850 Tomahawk MAX and the X870 Tomahawk; $250 to $500 buys the Strix B850-I at our last check.

How to Choose a Ryzen 7 7800X3D Motherboard

By priority

PriorityConsiderWhy
Most 7800X3D buildsB850 Tomahawk MAXFour M.2 slots, 5Gbps LAN and Wi-Fi 7 on B850
Spending more on the GPUB650 TomahawkWi-Fi 6E and 2.5Gbps LAN on B650
Small-form-factor gaming PCsStrix B850-IWi-Fi 7 and a 10+2+1 layout on Mini-ITX

Scroll sideways to see every column.

Key specs side by side

The B850 Tomahawk MAX leads on wired network speed at 5Gbps, ahead of the X870 Tomahawk at 5Gbps. "Not listed" marks M.2 slot count where the X870 Tomahawk and the B650 Tomahawk leave the figure out.

BoardM.2 slotsWired LANWi-FiPower stages
B850 Tomahawk MAX45GbpsWi-Fi 7Not listed
Strix B850-A42.5GbpsWi-Fi 714+2+2
X870 TomahawkNot listed5GbpsWi-Fi 7Not listed
B650 TomahawkNot listed2.5GbpsWi-Fi 6ENot listed
Strix B850-I22.5GbpsWi-Fi 710+2+1
B850 Gaming Plus35GbpsWi-Fi 7Not listed

Scroll sideways to see every column.

By price at the time of writing

At our last check the cheapest pick, the B650 Tomahawk, sat in the $150 to $250 tier, 2 tiers in all up to the Strix B850-I at $250 to $500; Amazon prices move, so recheck before buying.

Price tierBoards
About $150 to $250B650 Tomahawk, B850 Gaming Plus, Strix B850-A, B850 Tomahawk MAX, X870 Tomahawk
About $250 to $500Strix B850-I

Frequently Asked Questions

What makes the B850 Tomahawk MAX the Best All-Round?

It carries the badge for four M.2 slots, 5Gbps LAN and Wi-Fi 7 on B850. It is aimed at most 7800X3D builds.

Do the B850 Tomahawk MAX and the B650 Tomahawk differ on wi-Fi?

The B850 Tomahawk MAX, the Strix B850-A, the X870 Tomahawk, the Strix B850-I and the B850 Gaming Plus use Wi-Fi 7; the B650 Tomahawk uses Wi-Fi 6E.

Beyond the specs, what sets the B850 Tomahawk MAX and the Strix B850-A apart?

The B850 Tomahawk MAX: a PCIe 5.0 x16 slot with Steel Armor. The Strix B850-A: a rear USB 20Gbps port. The X870 Tomahawk: a PCIe 5.0 M.2 slot.

Who should choose the B650 Tomahawk?

The B650 Tomahawk carries our Best Budget label for wi-Fi 6E and 2.5Gbps LAN on B650. It ranks fourth of 6 here and sat in the $150 to $250 tier at our last price check; it suits spending more on the GPU.

Should I pick the B850 Tomahawk MAX or the Strix B850-I?

The B850 Tomahawk MAX suits most 7800X3D builds; the Strix B850-I suits small-form-factor gaming PCs.

Bottom Line

The B850 Tomahawk MAX suits most 7800X3D builds. The Strix B850-I fits a small case, and the B650 Tomahawk saves money with little lost.

About the author

PC Hardware Editor

Alex covers PC hardware, monitors, components, upgrades and peripherals for The PC Journal, with a focus on helping readers understand specifications, compatibility and meaningful product trade-offs.

Covers: Monitors, Graphics cards, Processors, PC components, Peripherals, Upgrades and compatibility

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