MSIReleased 2025
MSI MAG B850 Tomahawk WiFi
A entry-level pick in the motherboards line-up, with AMD B850 up front.
38/100
AMD B850AM58000 MT/s14+2+1ATXDDR5
£180best price at Amazon
In stock at 1 retailer
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Why we rate it
- ECC memory
- BIOS flashback
- Debug LED / postcode display
- Above-average max ram
- Below-average pcie 5.0 x16 slots
Score profile
Scored against the motherboards classWhere the MSI MAG B850 Tomahawk WiFi wins and loses
Full specification
Grouped · supported features marked in blueSpecifications
Platform
SocketAM5
ChipsetAMD B850
Form factorATX
Supported CPU generationsRyzen 7000 / 8000 / 9000
Memory
RAM typeDDR5
RAM slots4
Max RAM256 GB
Max memory speed (OC)8000 MT/s
ECC memoryYes
Power delivery
VRM phases14
CPU power connectors2
Expansion slots
PCIe 5.0 x16 slots0
PCIe 4.0 x16 slots1
PCIe x1 slots0
M.2 slots (total)3
M.2 PCIe 5.0 slots1
SATA ports4
Rear I/O
USB4 / Thunderbolt 40
USB 3.2 Gen 2x2 (20 Gb/s)1
USB 3.2 Gen 2 (10 Gb/s)5
USB 3.2 Gen 1 (5 Gb/s)4
HDMI1
DisplayPort1
Networking
Ethernet2.5
Wi-FiWi-Fi 7
Bluetooth5.4
Audio
Audio codecRealtek ALC4080
Audio channels7.1
Features
BIOS flashbackYes
Debug LED / postcode displayYes
RGB / ARGB headers3
Fan headers7
Watch it in action
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Head to head
Highlighted cell = better in that rowMSI MAG B850 Tomahawk WiFi vs Gigabyte Gigabyte B650 GAMING X AX V2
MSI MAG B850 Tomahawk WiFiGigabyte B650 GAMING X AX V2
| MSIMSI MAG B850 Tomahawk WiFiThis page | GigabyteGigabyte B650 GAMING X AX V2 | |
|---|---|---|
| Overall score | 38 /100 | 47 /100Better |
| Chipset | AMD B850 | B650 |
| Socket | AM5 | AM5 |
| Form factor | ATX | ATX |
| Max RAM speed | 8000 MT/s | 8000 MT/s |
| RAM slots | 4 | 4 |
| M2 slots total | 3 | 3 |
Who it's for
Is the MSI MAG B850 Tomahawk WiFi right for you?
Buy it if
Buyers on a budget
Anyone who needs a dependable motherboard for the essentials without overspending.
Skip it if
Skip it if
You need flagship-tier performance, in which case a higher-tier motherboard is the better call.
Performance builder
Chasing frames and headroom in a high-end rig.
okay
Mainstream builder
Wants strong value in a balanced build.
good
Budget builder
Stretching every pound in an entry rig.
excellent
Common questions
Before you buy
Is the MSI MAG B850 Tomahawk WiFi worth it?
It depends on what you need. It scores 38/100 against other motherboards, a entry-level result where the class average is around 51.
What stands out on the MSI MAG B850 Tomahawk WiFi?
Its ecc memory stands out, a genuinely useful feature if your setup calls for it.
How does it compare to the B650 GAMING PLUS WIFI?
The B650 GAMING PLUS WIFI scores 39/100 versus this one at 38/100, so it is the step up on the spec sheet.
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