ASRock B850 Pro RS WiFi VS MSI B850M Gaming Plus Wi-Fi

Both boards share the same fundamental platform — AM5 socket, B850 chipset, identical HDMI 2.1 output, dual BIOS protection, and a 3-year warranty — so the core build quality and compatibility story is essentially a tie. The most immediately practical difference is form factor: the ASRock is a full-size ATX (305 × 244 mm), while the MSI is a compact Micro-ATX (243.8 × 243.8 mm). This means the ASRock fits only standard mid/full towers and offers more PCIe and RAM slot real estate, whereas the MSI opens the door to smaller Micro-ATX cases without sacrificing the B850 feature set.

On wireless connectivity, the MSI holds a clear edge. It supports Wi-Fi 7 (802.11be) in addition to all the standards the ASRock covers (up to Wi-Fi 6E), and pairs that with Bluetooth 5.4 versus the ASRock's Bluetooth 5.2. In practice, Wi-Fi 7 delivers significantly higher throughput and lower latency — relevant for anyone on a compatible router — and Bluetooth 5.4 brings improved reliability and connection stability over 5.2.

The MSI also wins on usability: its Easy BIOS Reset feature is present, while the ASRock lacks it — a small but real convenience advantage when troubleshooting an unstable overclock or a failed update. Both boards support overclocking and RGB lighting equally. Overall, the MSI B850M Gaming Plus Wi-Fi has a meaningful advantage in wireless capabilities and ease of use; the ASRock's case for consideration comes down purely to whether you need the larger ATX footprint and its associated expansion options.

Both the ASRock B850 Pro RS WiFi and the MSI B850M Gaming Plus Wi-Fi support a maximum memory amount of 256GB and offer 4 memory slots. These boards are both compatible with DDR5 memory and have 2 memory channels. While the ASRock motherboard supports a maximum RAM speed of 8000 MHz, the MSI model supports a lower maximum speed of 5600 MHz. However, the MSI board can overclock its RAM to 8200 MHz, which slightly surpasses the ASRock’s overclocked RAM speed of 8000 MHz.

Neither motherboard supports ECC memory, meaning they are not designed for error-correcting capabilities typically found in server-grade systems. Other than these differences in memory speed and overclocking potential, both motherboards share similar configurations in terms of memory slots, DDR version, and memory channels.

The ASRock B850 Pro RS WiFi and MSI B850M Gaming Plus Wi-Fi offer a range of USB ports, but their configurations differ. The ASRock motherboard features 4 USB 3.2 Gen 1 ports (USB-A), 1 USB 3.2 Gen 2 port (USB-C), and 1 USB 3.2 Gen 1 port (USB-C). In contrast, the MSI board provides 3 USB 3.2 Gen 2 ports (USB-A) and 2 USB 3.2 Gen 2 ports (USB-C), with no USB 3.2 Gen 1 USB-A ports. The ASRock has 6 USB 2.0 ports, while the MSI board lacks any USB 2.0 ports, focusing instead on the faster USB 3.2 options.

Both motherboards are equipped with 1 HDMI output, but the MSI board also includes a DisplayPort output, while the ASRock lacks this option. For networking, both boards feature 1 RJ45 Ethernet port, ensuring a similar wired connection capability. Both motherboards offer USB Type-C support, though their exact configurations differ in the number of ports available.

Neither board has Thunderbolt 4 or Thunderbolt 3 ports, and neither includes eSATA ports, DVI outputs, or VGA connectors. PS/2 ports are also absent from both models. Overall, the MSI board offers more flexibility with USB-C and DisplayPort options, while the ASRock model focuses more on USB 2.0 support.

The ASRock B850 Pro RS WiFi and MSI B850M Gaming Plus Wi-Fi offer a variety of connectors, with some key differences. The ASRock motherboard includes 4 USB 3.2 Gen 1 ports through expansion, 4 USB 3.0 ports through expansion, and 4 USB 2.0 ports through expansion. In contrast, the MSI board provides fewer expansion options, with only 2 USB 3.2 Gen 1 ports and 2 USB 3.0 ports through expansion, though both motherboards support 4 USB 2.0 expansion ports. For storage connectivity, both models feature 4 SATA 3 connectors and no SATA 2 connectors. Neither board includes an mSATA connector.

Both motherboards have a TPM connector for added security features, which is a shared trait. The ASRock board offers 4 M.2 sockets for additional storage devices, while the MSI board has only 2 M.2 sockets, offering fewer expansion options for fast storage. The ASRock also has more fan headers, with 7 compared to the MSI's 5, providing more flexibility for system cooling.

Neither motherboard supports U.2 sockets, and both lack SATA 2 connectors. Overall, the ASRock motherboard offers more expansion options, including additional M.2 sockets and fan headers, while the MSI board is more limited in terms of expansion but still includes the necessary connectors for most standard configurations.

The ASRock B850 Pro RS WiFi and MSI B850M Gaming Plus Wi-Fi differ in their PCIe slot configurations. The ASRock motherboard features 1 PCIe 4.0 x16 slot and 1 PCIe 5.0 x16 slot, but it lacks any PCIe x1, x4, or x8 slots. In comparison, the MSI motherboard has no PCIe 4.0 x16 slots, but it does include 1 PCIe 5.0 x16 slot, along with 1 PCIe x1 slot and 1 PCIe x4 slot, allowing for more flexible expansion in terms of lower bandwidth cards or devices.

Neither motherboard includes traditional PCI slots or PCIe 2.0 x16 slots. However, the ASRock board offers only PCIe x16 slots, while the MSI board provides a broader range of PCIe slots, giving more options for various types of expansion cards, such as networking or sound cards.

Overall, the ASRock motherboard is more focused on high-bandwidth PCIe slots with the inclusion of PCIe 5.0, while the MSI motherboard offers a more diverse range of expansion slots, though it lacks a PCIe 4.0 x16 slot.

Both the ASRock B850 Pro RS WiFi and MSI B850M Gaming Plus Wi-Fi motherboards offer 7.1 audio channels, providing high-quality audio output. Neither motherboard has an S/PDIF Out port, so digital audio output through that connection is not supported on either board. Both models are equipped with 3 audio connectors, ensuring compatibility with common audio devices like speakers, headphones, or microphones.

In terms of audio features, both motherboards are identical, providing similar audio performance and connectivity options. There are no differences between the two in this category.

Both the ASRock B850 Pro RS WiFi and MSI B850M Gaming Plus Wi-Fi motherboards offer support for RAID 1 and RAID 10 (1+0), providing flexible storage options for redundancy and performance. Neither of the two boards supports RAID 5, so users seeking that specific RAID level will need to look elsewhere. Additionally, both motherboards do not support RAID 0+1, which is another RAID configuration absent from their feature sets. Both models, however, do support RAID 0, which allows for increased performance through striping across multiple drives.

In summary, the storage features in both motherboards are identical, offering the same RAID support without any significant differences between them.