MSI PRO Z890-A WIFI vs PRO B850M-A WiFi Motherboard Comparison

MSI PRO Z890-A WIFI and MSI PRO B850M-A WiFi are both motherboards with the same Wi-Fi Generation (7), SATA 6 Gbps Ports (4) and RAM Slots (4). The main differences are in Socket, Form factor, Chipset and Supported Memory.

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MSI PRO Z890-A WIFI	MSI PRO B850M-A WiFi
Prices (Change region) Out of Stock $213.68 Out of Stock Free shipping $229.95 Out of Stock Free shipping $229.99 Out of Stock Free shipping $250.99 Out of Stock Free shipping $287.00 Out of Stock Free shipping $289.99 - Buy now Show 4 more offers	Prices (Change region) In Stock $139.99 Last updated 28 minutes ago. In Stock Free shipping $139.99 In Stock Free shipping $166.99 In Stock + $5.99 Shipping $166.99 In Stock $183.49 Show 2 more offers
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Brand MSI	Brand MSI
Model PRO Z890-A WIFI	Model PRO B850M-A WIFI
Release Date 📅 October 2024	Release Date 📅 June 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (1 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►	Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►
Socket LGA1851	Socket AM5
Form factor ATX	Form factor Micro ATX
Chipset Intel Z890	Chipset AMD B850
Supported Memory DDR5 4800Mhz 5000Mhz 5200Mhz 5400Mhz 5600Mhz 5800Mhz 6000Mhz 6200Mhz 6400Mhz 6600Mhz 6800Mhz 7000Mhz 7200Mhz 7400Mhz 7600Mhz 7800Mhz 8000Mhz 8200Mhz 8400Mhz 8600Mhz 8800Mhz 9000Mhz 9200Mhz	Supported Memory DDR5 4800Mhz 6000Mhz 6400Mhz 8200Mhz 8600Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS ** RAM support may also depend on the CPU memory controller
ECC RAM Support No	ECC RAM Support No
Audio Chipset Realtek ALC1220	Audio Chipset ALC897
Audio Channels 7.1 Channels	Audio Channels 8-Channel (7.1) HD Audio with Audio Boost
LAN Chipset RTL8126-VB-CG	LAN Chipset Realtek® 8126 5G LAN
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support No
RAID Support Yes	RAID Support No
Back Connect No	Back Connect No
Back I/O Ports 1 x Audio Jack 1 x Flash BIOS Button 1 x LAN (RJ45) 1 x Optical S/PDIF Out 1 x USB 3.2 Gen 2 Type-C 2 x Thunderbolt 4 3 x USB 3.1 Gen 2 Type-A 4 x USB 3.0	Back I/O Ports -
Wireless LAN Yes	Wireless LAN Yes
Wi-Fi Generation 7	Wi-Fi Generation 7
PCI-Express x16 Slots 3	PCI-Express x16 Slots 2
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 0	PCI-Express x1 Slots 1
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 4	M.2 Ports 2
M.2 Devices support 2260 / 2280 - M Key 2260 / 2280 / 22110 - M Key 2242 / 2260 / 2280 - M Key 2242 / 2260 / 2280 - M Key	M.2 Devices support 2260 / 2280 - M Key 2260 / 2280 - M Key
RAM Slots 4	RAM Slots 4
Maximum Supported RAM 256 GB	Maximum Supported RAM 128 GB
Onboard USB 2.0 2	Onboard USB 2.0 0
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 0	Onboard USB 3.2 Gen 2 1
Onboard USB 3.2 Gen 2x2 1	Onboard USB 3.2 Gen 2x2 0