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 The PC Journal editorial team
12 min read6 products evaluated
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
Our 6 recommendations at a glance. Tap a pick for the full verdict.
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.
Our take Check price for MSI MAG B850 Tomahawk MAX WiFi (opens in a new tab)
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.
Our take Check price for ASUS ROG Strix B850-A Gaming WiFi (opens in a new tab)
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.
Our take Check price for MSI MAG X870 Tomahawk WiFi (opens in a new tab)
Best Budget
MSI MAG B650 Tomahawk WiFi
Wi-Fi 6E and 2.5Gbps LAN on B650.
Best for: Spending more on the GPU.
Our take Check price for MSI MAG B650 Tomahawk WiFi (opens in a new tab)
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.
Our take Check price for ASUS ROG Strix B850-I Gaming WiFi (opens in a new tab)
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.
Our take Check price for MSI B850 Gaming Plus WiFi (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| Four M.2 slots, 5Gbps LAN and Wi-Fi 7 on B850. | Most 7800X3D builds. | Check price for MSI MAG B850 Tomahawk MAX WiFi (opens in a new tab) |
| The Strix B850-A offers four M.2 slots, a 14+2+2 layout, Wi-Fi 7 and a white finish. | Buyers who want 4 m.2 slots for ssd expansion. | Check price for ASUS ROG Strix B850-A Gaming WiFi (opens in a new tab) |
| The X870 Tomahawk pairs 5Gbps Ethernet with Wi-Fi 7 and USB4, covering the connectivity most builders want for years. | Buyers who want 5gbps wired ethernet. | Check price for MSI MAG X870 Tomahawk WiFi (opens in a new tab) |
| Wi-Fi 6E and 2.5Gbps LAN on B650. | Spending more on the GPU. | Check price for MSI MAG B650 Tomahawk WiFi (opens in a new tab) |
| Wi-Fi 7 and a 10+2+1 layout on Mini-ITX. | Small-form-factor gaming PCs. | Check price for ASUS ROG Strix B850-I Gaming WiFi (opens in a new tab) |
| 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. | Buyers who want 5gbps wired ethernet. | Check price for MSI B850 Gaming Plus WiFi (opens in a new tab) |
Our Picks
Best All-Round1 of 6
MSI MAG B850 Tomahawk MAX WiFi on Amazon (opens in a new tab)
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.
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 dimensions & 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 on Amazon (opens in a new tab)
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.
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 dimensions & 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 on Amazon (opens in a new tab)
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.
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. There is no published M.2 slot count figure, whereas the B850 Tomahawk MAX offers 4.
Key dimensions & 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
Best Budget4 of 6
MSI MAG B650 Tomahawk WiFi on Amazon (opens in a new tab)
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.
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. There is no published M.2 slot count figure, whereas the B850 Tomahawk MAX offers 4.
Key dimensions & 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
Best Mini-ITX5 of 6
ASUS ROG Strix B850-I Gaming WiFi on Amazon (opens in a new tab)
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.
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 dimensions & 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)
Well-Rounded Choice6 of 6
MSI B850 Gaming Plus WiFi on Amazon (opens in a new tab)
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.
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 dimensions & 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
Each pick was assessed across 4 criteria weighted for real-world use.
- Storage
- We counted listed M.2 slots and PCIe 5.0 support.
- Connectivity
- We compared Wi-Fi, wired LAN speed and USB4.
- Power delivery
- We noted power stage layouts where the maker lists them.
- Platform
- We checked socket, chipset and form factor from each listing.
What to Look for in a Ryzen 7 7800X3D Motherboard
Key buying criteria so you get the right fit the first time.
Match the chipset to your plans
On AM5, B850 covers most gaming builds with PCIe 5.0 for at least one slot. X870E adds more PCIe 5.0 lanes and USB4 for heavy expansion.
Features, not frame rates, separate the chipsets.
Networking matters for daily use
Wi-Fi 7 and 5Gbps Ethernet help only if your router supports them, but built-in Wi-Fi saves a PCIe card.
Check BIOS support and Flashback
A board may need a BIOS update before it runs a newer CPU. BIOS Flashback lets you update without a working CPU installed.
Check the rear and front I/O
Count USB ports you use every day and confirm a front USB-C header if your case has a USB-C port.
Count M.2 slots
Most games now install to NVMe drives. Count how many M.2 slots you need now and later, and check which ones share lanes with other ports.
Power delivery for high-end CPUs
Boards with more and stronger power stages run hot 16-core chips more comfortably. For eight-core gaming CPUs, most current boards are enough.
How to Choose a Ryzen 7 7800X3D Motherboard
By priority
| Priority | Consider | Why |
|---|---|---|
| Most 7800X3D builds | B850 Tomahawk MAX | Four M.2 slots, 5Gbps LAN and Wi-Fi 7 on B850 |
| Spending more on the GPU | B650 Tomahawk | Wi-Fi 6E and 2.5Gbps LAN on B650 |
| Small-form-factor gaming PCs | Strix B850-I | Wi-Fi 7 and a 10+2+1 layout on Mini-ITX |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Board | M.2 slots | Wired LAN | Wi-Fi | Power stages |
|---|---|---|---|---|
| B850 Tomahawk MAX | 4 | 5Gbps | Wi-Fi 7 | Not listed |
| Strix B850-A | 4 | 2.5Gbps | Wi-Fi 7 | 14+2+2 |
| X870 Tomahawk | Not listed | 5Gbps | Wi-Fi 7 | Not listed |
| B650 Tomahawk | Not listed | 2.5Gbps | Wi-Fi 6E | Not listed |
| Strix B850-I | 2 | 2.5Gbps | Wi-Fi 7 | 10+2+1 |
| B850 Gaming Plus | 3 | 5Gbps | Wi-Fi 7 | Not listed |
Scroll sideways to see every column.
By price at the time of writing
Prices change often; these tiers reflect Amazon prices when this guide was updated.
| Price tier | Boards |
|---|---|
| About $150 to $250 | B650 Tomahawk, B850 Gaming Plus, Strix B850-A, B850 Tomahawk MAX, X870 Tomahawk |
| About $250 to $500 | Strix B850-I |
Frequently Asked Questions
Do I need X870E for gaming?
No. A B850 board runs the same CPUs at the same speed; X870E adds more PCIe 5.0 lanes, USB4 and expansion.
Is built-in Wi-Fi worth it?
Yes if you cannot run a cable. Otherwise wired Ethernet is more consistent.
Do I need PCIe 5.0?
Current graphics cards barely benefit. PCIe 5.0 matters more for the fastest SSDs.
What size motherboard should I buy?
ATX fits most mid-towers and has the most slots. Micro-ATX and Mini-ITX suit smaller cases with fewer expansion needs.
Will a new board work with my CPU out of the box?
Usually, but check the board's CPU support list. If your chip needs a newer BIOS, BIOS Flashback updates it from a USB drive.
Should I fill all four memory slots?
Two sticks usually run faster and more reliably on DDR5. Buy a two-stick kit with the capacity you need.
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.