Asus TUF Gaming B850-Plus WiFi
MSI MAG B850M Mortar WiFI

Asus TUF Gaming B850-Plus WiFi MSI MAG B850M Mortar WiFI

Overview

Welcome to our in-depth comparison of the Asus TUF Gaming B850-Plus WiFi and the MSI MAG B850M Mortar WiFi — two B850-chipset motherboards targeting AMD AM5 builds with Wi-Fi 7 and DDR5 support. While they share a strong common foundation, key battlegrounds emerge around form factor and expansion slot configuration, memory capacity, port selection, and audio connectivity. Read on to see how these two boards stack up across every major specification.

Common Features

  • Both motherboards use the AM5 CPU socket.
  • Both motherboards feature the B850 chipset.
  • Wi-Fi is supported on both motherboards, covering Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), and Wi-Fi 7 (802.11be).
  • Bluetooth 5.4 is available on both motherboards.
  • Both motherboards support HDMI 2.1.
  • Overclocking is supported on both motherboards.
  • Both motherboards have 4 memory slots.
  • Both motherboards support DDR5 memory.
  • Both motherboards feature 2 memory channels.
  • ECC memory is not supported on either motherboard.
  • Both motherboards have 3 USB 3.2 Gen 2 ports (USB-A).
  • Both motherboards have 4 USB 3.2 Gen 1 ports (USB-A).
  • Neither motherboard has USB 3.2 Gen 1 ports (USB-C).
  • Both motherboards have 1 USB 3.2 Gen 2x2 port.
  • Neither motherboard has USB 4, Thunderbolt 3, or Thunderbolt 4 ports.
  • Both motherboards have 4 SATA 3 connectors, 6 fan headers, and 3 M.2 sockets.
  • Both motherboards feature 1 PCIe 5.0 x16 slot.
  • Both motherboards deliver a 120 dB signal-to-noise ratio (DAC) and support 7.1 audio channels.
  • Both motherboards support RAID 0, RAID 1, RAID 5, and RAID 10 (1+0), but neither supports RAID 0+1.

Main Differences

  • The Asus TUF Gaming B850-Plus WiFi has an ATX form factor, while the MSI MAG B850M Mortar WiFi uses a Micro-ATX form factor.
  • The width is 305 mm on the Asus TUF Gaming B850-Plus WiFi and 244 mm on the MSI MAG B850M Mortar WiFi.
  • Easy BIOS reset is available on the MSI MAG B850M Mortar WiFi but not on the Asus TUF Gaming B850-Plus WiFi.
  • Maximum memory capacity is 192 GB on the Asus TUF Gaming B850-Plus WiFi and 256 GB on the MSI MAG B850M Mortar WiFi.
  • Maximum RAM speed is 4000 MHz on the Asus TUF Gaming B850-Plus WiFi and 5600 MHz on the MSI MAG B850M Mortar WiFi.
  • Maximum overclocked RAM speed is 8000 MHz on the Asus TUF Gaming B850-Plus WiFi and 8200 MHz on the MSI MAG B850M Mortar WiFi.
  • The MSI MAG B850M Mortar WiFi has 1 USB 3.2 Gen 2 port (USB-C), while the Asus TUF Gaming B850-Plus WiFi has none.
  • The Asus TUF Gaming B850-Plus WiFi has 2 USB 2.0 ports, while the MSI MAG B850M Mortar WiFi has none.
  • The Asus TUF Gaming B850-Plus WiFi includes 1 DisplayPort output, while the MSI MAG B850M Mortar WiFi has none.
  • A TPM connector is present on the MSI MAG B850M Mortar WiFi but not on the Asus TUF Gaming B850-Plus WiFi.
  • The Asus TUF Gaming B850-Plus WiFi has 1 PCIe 4.0 x16 slot, while the MSI MAG B850M Mortar WiFi has none.
  • The Asus TUF Gaming B850-Plus WiFi has 2 PCIe x1 slots, while the MSI MAG B850M Mortar WiFi has none.
  • The MSI MAG B850M Mortar WiFi has 1 PCIe x4 slot, while the Asus TUF Gaming B850-Plus WiFi has none.
  • S/PDIF Out is available on the MSI MAG B850M Mortar WiFi but not on the Asus TUF Gaming B850-Plus WiFi.
  • The Asus TUF Gaming B850-Plus WiFi has 5 audio connectors, while the MSI MAG B850M Mortar WiFi has 2.
Specs Comparison
Asus TUF Gaming B850-Plus WiFi

Asus TUF Gaming B850-Plus WiFi

MSI MAG B850M Mortar WiFI

MSI MAG B850M Mortar WiFI

General info:
CPU socket AM5 AM5
chipset B850 B850
form factor ATX Micro-ATX
release date January 2025 March 2025
supports Wi-Fi
Wi-Fi version Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be) Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)
Has Bluetooth
Bluetooth version 5.4 5.4
HDMI version HDMI 2.1 HDMI 2.1
Easy to overclock
has RGB lighting
Easy to reset BIOS
Has dual BIOS
has aptX
CPU sockets 1 1
Has integrated graphics
warranty period 3 years 3 years
height 244 mm 244 mm
width 305 mm 244 mm
Has integrated CPU

Both the Asus TUF Gaming B850-Plus WiFi and the MSI MAG B850M Mortar WiFi share the same AM5 socket and B850 chipset, meaning they target identical CPU compatibility and offer the same overclocking headroom. Connectivity is also a wash: both carry Wi-Fi 7 (backward-compatible through Wi-Fi 4), Bluetooth 5.4, and HDMI 2.1, so neither has an edge on wireless capability or display output.

The most meaningful difference lies in form factor. The Asus is a full ATX board (305 × 244 mm), while the MSI is Micro-ATX (244 × 244 mm). That size gap matters at build time: the ATX format offers more physical space for expansion slots and cable routing, whereas the Micro-ATX fits compact and mid-tower cases that won't accommodate a full-size board. Choosing between them is largely dictated by your case and how much room you want for future expansion. A subtler but practical distinction is BIOS accessibility: the MSI supports easy BIOS reset while the Asus does not, which can save time during troubleshooting or after a failed overclock. Both boards feature dual BIOS, adding a recovery safety net regardless.

On balance, neither board holds a sweeping general advantage — shared specs dominate this category. However, the MSI MAG B850M Mortar WiFi earns a small practical edge for builders who value easier BIOS management, while the Asus TUF Gaming B850-Plus WiFi is the natural pick if a full ATX footprint and the extra expandability it enables are priorities. Both carry a 3-year warranty, so long-term coverage is equal.

Memory:
maximum memory amount 192GB 256GB
RAM speed (max) 4000 MHz 5600 MHz
overclocked RAM speed 8000 MHz 8200 MHz
memory slots 4 4
DDR memory version 5 5
memory channels 2 2
Supports ECC memory

The Asus TUF Gaming B850-Plus WiFi and MSI MAG B850M Mortar WiFi motherboards both feature DDR5 memory with a dual memory channel configuration, providing strong performance for modern systems. However, they differ in their memory specifications in several ways. The Asus TUF Gaming B850-Plus WiFi supports a maximum memory capacity of 192GB, while the MSI MAG B850M Mortar WiFi offers a larger maximum of 256GB. This gives the MSI model a potential advantage for users looking for more memory capacity.

When it comes to RAM speed, the Asus board supports a maximum speed of 4000 MHz, with overclocked RAM reaching up to 8000 MHz. On the other hand, the MSI board has a slightly higher maximum RAM speed of 5600 MHz, and its overclocked RAM speed reaches 8200 MHz, indicating a higher potential performance ceiling for overclocked configurations.

Both motherboards feature four memory slots, and neither supports ECC memory. In terms of DDR memory version, both products are equipped with DDR5 support, ensuring compatibility with the latest high-performance memory modules. Overall, while both motherboards offer solid memory capabilities, the MSI MAG B850M Mortar WiFi has a higher memory capacity and slightly better overclocking potential, making it more suitable for users seeking maximum memory performance.

Ports:
USB 3.2 Gen 2 ports (USB-A) 3 3
USB 3.2 Gen 1 ports (USB-A) 4 4
USB 3.2 Gen 2 ports (USB-C) 0 1
USB 3.2 Gen 1 ports (USB-C) 0 0
USB 2.0 ports 2 0
USB 3.2 Gen 2x2 ports 1 1
USB 4 40Gbps ports 0 0
USB 4 20Gbps ports 0 0
Thunderbolt 4 ports 0 0
Thunderbolt 3 ports 0 0
has an HDMI output
DisplayPort outputs 1 0
RJ45 ports 1 1
Has USB Type-C
eSATA ports 0 0
DVI outputs 0 0
has a VGA connector
PS/2 ports 0 0

Both the Asus TUF Gaming B850-Plus WiFi and MSI MAG B850M Mortar WiFi motherboards offer a solid range of ports for connectivity, with some key differences. For USB ports, both have three USB 3.2 Gen 2 ports (USB-A) and four USB 3.2 Gen 1 ports (USB-A). The Asus board does not feature any USB-C ports, while the MSI board includes one USB 3.2 Gen 2 (USB-C) port, providing a slight edge for the MSI model in terms of USB-C availability.

Both motherboards have one USB 3.2 Gen 2x2 port, ensuring high-speed data transfer. When it comes to display outputs, the Asus model has a DisplayPort output, whereas the MSI board lacks this, relying only on its HDMI output for display connections. Both models support HDMI output, so users can connect them to external monitors or TVs easily.

For networking, both boards feature a single RJ45 port for wired internet connections. Neither board includes eSATA ports, DVI outputs, or a VGA connector. Additionally, neither has Thunderbolt 3 or Thunderbolt 4 ports, and both are missing PS/2 ports. Overall, the primary differences between these two motherboards in terms of ports are the inclusion of a USB-C port on the MSI model and the DisplayPort output on the Asus board.

Connectors:
USB 3.2 Gen 1 ports (through expansion) 2 2
USB-C 3.2 Gen 2 ports (through expansion) 1 1
USB 2.0 ports (through expansion) 4 4
SATA 3 connectors 4 4
fan headers 6 6
USB 3.0 ports (through expansion) 2 2
M.2 sockets 3 3
Has TPM connector
U.2 sockets 0 0
Has mSATA connector
SATA 2 connectors 0 0

Both the Asus TUF Gaming B850-Plus WiFi and MSI MAG B850M Mortar WiFi motherboards provide similar connector options. Each has two USB 3.2 Gen 1 ports, one USB-C 3.2 Gen 2 port, and four USB 2.0 ports available through expansion. Additionally, both motherboards feature two USB 3.0 ports through expansion, and each has four SATA 3 connectors for storage devices. Both models also provide six fan headers, supporting effective cooling solutions for high-performance builds.

The key difference between the two products lies in the presence of the TPM connector. The Asus TUF Gaming B850-Plus WiFi lacks a TPM connector, while the MSI MAG B850M Mortar WiFi includes one, which could be an important factor for users requiring trusted platform modules for security purposes.

In terms of other connectors, both motherboards offer three M.2 sockets, and neither has any U.2 or mSATA connectors, nor do they include any SATA 2 connectors. Overall, the connector specifications are mostly identical, with the exception of the TPM connector on the MSI model.

Expansion slots:
PCIe 4.0 x16 slots 1 0
PCIe 5.0 x16 slots 1 1
PCIe 3.0 x16 slots 0 0
PCIe x1 slots 2 0
PCI slots 0 0
PCIe 2.0 x16 slots 0 0
PCIe x4 slots 0 1
PCIe x8 slots 0 0

The Asus TUF Gaming B850-Plus WiFi and MSI MAG B850M Mortar WiFi offer different configurations for their expansion slots. The Asus motherboard has one PCIe 4.0 x16 slot and one PCIe 5.0 x16 slot, making it suitable for high-speed graphics or expansion cards. It also includes two PCIe x1 slots, providing additional expansion options, but lacks any PCIe x4, x8, or PCI slots.

In comparison, the MSI board includes only one PCIe 5.0 x16 slot, which can handle modern high-performance GPUs but lacks the additional PCIe 4.0 x16 slot that the Asus model offers. The MSI motherboard does have one PCIe x4 slot, which the Asus model does not, but it does not feature any PCIe x1 slots or PCI slots.

Overall, the Asus TUF Gaming B850-Plus WiFi provides a more versatile expansion slot configuration with both PCIe 4.0 and PCIe 5.0 x16 slots, while the MSI MAG B850M Mortar WiFi includes a PCIe x4 slot but only offers PCIe 5.0 x16 for GPU expansion.

Audio:
Signal-to-Noise ratio (DAC) 120 dB 120 dB
audio channels 7.1 7.1
Has S/PDIF Out port
audio connectors 5 2

Both the Asus TUF Gaming B850-Plus WiFi and MSI MAG B850M Mortar WiFi motherboards feature a 120 dB signal-to-noise ratio for their DACs, ensuring high-quality audio output. Both support 7.1 audio channels, offering immersive sound for gaming and media. However, they differ in a couple of key areas. The Asus motherboard has five audio connectors, while the MSI model only provides two audio connectors, limiting its direct audio output options.

Another difference is the inclusion of an S/PDIF Out port. The MSI MAG B850M Mortar WiFi has this port, which allows for digital audio output to external devices, while the Asus TUF Gaming B850-Plus WiFi lacks an S/PDIF Out port.

In summary, while both motherboards offer similar audio performance with the same DAC signal-to-noise ratio and 7.1 channels, the Asus board has more audio connectors, while the MSI board offers the additional S/PDIF Out port for digital audio connectivity.

Storage:
Supports RAID 1
Supports RAID 10 (1+0)
Supports RAID 5
Supports RAID 0
Supports RAID 0+1

The Asus TUF Gaming B850-Plus WiFi and MSI MAG B850M Mortar WiFi motherboards both support the same RAID configurations. Both models are capable of RAID 1, RAID 10 (1+0), RAID 5, and RAID 0 setups, allowing for a variety of storage options with redundancy and performance. Neither motherboard supports RAID 0+1, as this feature is not available on either board.

Overall, both motherboards offer the same RAID support, ensuring flexibility for users who require multiple drive configurations for their storage solutions.

Comparison Summary & Verdict

Both boards deliver a compelling AM5 platform with Wi-Fi 7, DDR5, and solid RAID support, but they serve distinctly different builders. The Asus TUF Gaming B850-Plus WiFi is the stronger pick for full-tower or mid-tower builds that demand greater expansion flexibility, thanks to its ATX form factor, additional PCIe 4.0 x16 and PCIe x1 slots, DisplayPort output, and a richer 5-connector audio layout. The MSI MAG B850M Mortar WiFi, in its compact Micro-ATX footprint, punches above its size with a higher maximum memory capacity of 256 GB, faster supported RAM speeds of up to 5600 MHz, a USB 3.2 Gen 2 Type-C rear port, a TPM connector, and a convenient easy BIOS reset feature — making it ideal for space-conscious or SFF-adjacent builds that still want premium connectivity.

Asus TUF Gaming B850-Plus WiFi
Buy Asus TUF Gaming B850-Plus WiFi if...

Buy the Asus TUF Gaming B850-Plus WiFi if you need an ATX board with greater PCIe expansion options, a DisplayPort output, and more audio connectors for a full-featured desktop build.

MSI MAG B850M Mortar WiFI
Buy MSI MAG B850M Mortar WiFI if...

Buy the MSI MAG B850M Mortar WiFi if you want a compact Micro-ATX board with higher maximum memory capacity, faster RAM speed support, a rear USB-C port, and an easy BIOS reset feature.