MSI B850 Gaming Plus WiFi VS MSI MAG B850M Mortar WiFI

At their core, the MSI B850 Gaming Plus WiFi and the MSI MAG B850M Mortar WiFi are built on the same foundation: both use the AM5 socket with the B850 chipset, support overclocking, include dual BIOS, RGB lighting, and easy BIOS reset. Their wireless credentials are also identical, with Wi-Fi 7 (802.11be) and Bluetooth 5.4 on both boards, meaning neither has an edge in connectivity. The shared 3-year warranty and single-socket design round out a remarkably similar feature set.

The one meaningful differentiator in this group is form factor. The Gaming Plus WiFi is a full-size ATX board at 304.8 × 243.8 mm, while the Mortar WiFi is a compact Micro-ATX at 244 × 244 mm. In practice, this means the Gaming Plus WiFi requires a mid-tower or full-tower case and offers more physical space for additional expansion slots and VRM cooling, whereas the Mortar WiFi fits into smaller Micro-ATX or compatible ATX cases, making it the natural pick for space-constrained or compact builds.

For this spec group, the choice comes down entirely to chassis compatibility and build goals. If you are planning a compact or small-footprint system, the Mortar WiFi has a clear practical advantage. If you want the flexibility of a larger board with more room to grow, the Gaming Plus WiFi wins on expandability. Neither board holds a feature advantage over the other in general specs.

Memory support is a complete dead heat between these two boards. Both the Gaming Plus WiFi and the Mortar WiFi offer 4 DIMM slots, a 256GB maximum capacity, dual-channel DDR5 architecture, and identical native and overclocked speed ceilings of 5600 MHz and 8200 MHz respectively. Neither supports ECC memory, which is expected at this mainstream chipset tier.

The practical takeaway is straightforward: a user upgrading from DDR4 will find the same DDR5 headroom on either board, and enthusiasts chasing high-frequency kits can push equally far on both. The 8200 MHz overclocked ceiling is competitive for the B850 platform and leaves meaningful room above the JEDEC standard for those who want to extract extra memory bandwidth for gaming or creative workloads. The four slots also allow starting with two sticks in dual-channel mode and expanding later without replacing existing modules.

With every memory specification matching exactly, this group is a complete tie. Memory capability should play no role in choosing between these two boards.

Port selection is where these two boards genuinely diverge. The Mortar WiFi delivers a much stronger USB-A presence on the rear panel — 3 Gen 2 (10Gbps) and 4 Gen 1 (5Gbps) Type-A ports — compared to the Gaming Plus WiFi's modest 1 Gen 2 and 1 Gen 1 Type-A. For users with many peripherals, external drives, or hubs, this is a tangible day-to-day advantage. The Mortar also adds a USB 3.2 Gen 2x2 port, which runs at 20Gbps and is useful for the fastest external NVMe enclosures available today — a feature entirely absent on the Gaming Plus WiFi.

The Gaming Plus WiFi counters with two USB 3.2 Gen 2 Type-C ports versus the Mortar's single one, which is a plus for users with modern USB-C peripherals or who want to charge devices at speed. It also carries 4 USB 2.0 ports, which the Mortar drops entirely — those low-speed ports remain useful for keyboards, mice, and dongles that don't benefit from higher bandwidth. On the video output side, the Gaming Plus WiFi offers a DisplayPort output while the Mortar WiFi provides HDMI instead; neither is objectively superior, but compatibility will depend on the monitor in use.

Overall, the Mortar WiFi holds the edge in this group. Its higher USB-A port count and the inclusion of a Gen 2x2 port make it the more versatile rear panel for most users, particularly those with several high-speed peripherals. The Gaming Plus WiFi's extra USB-C port is a reasonable trade-off for some, but it doesn't offset the Mortar's broader connectivity advantage.

Internal connector layouts are largely aligned between these two boards, but one meaningful gap exists. The Gaming Plus WiFi provides 4 USB 3.2 Gen 1 headers for front-panel and expansion use, while the Mortar WiFi offers only 2. In practical terms, those extra headers on the Gaming Plus WiFi allow connecting more front-panel USB 3.0 ports or internal USB hubs simultaneously without needing adapters — a real advantage in cases with multiple front-panel connectors or for users running several internal USB devices.

Everything else is evenly matched. Both boards share 3 M.2 sockets for NVMe storage, 4 SATA 3 connectors for traditional drives, 6 fan headers for comprehensive cooling control, and identical USB 2.0 expansion headers. The TPM connector is present on both, which matters for Windows 11 compliance and enterprise security configurations. The absence of U.2 and mSATA on either board is entirely expected at this mainstream tier.

The Gaming Plus WiFi takes a narrow but real edge here, solely on the strength of its doubled USB 3.2 Gen 1 internal header count. For builders planning feature-rich cases or multi-device internal setups, that extra bandwidth headroom is genuinely useful. For everyone else, the two boards are functionally identical in this category.

Both boards share a PCIe 5.0 x16 slot as their primary GPU interface, ensuring neither compromises on graphics card bandwidth for current and next-generation GPUs. Beyond that anchor point, however, the two layouts diverge noticeably. The Gaming Plus WiFi adds a PCIe 4.0 x16 slot alongside two PCIe x1 slots, while the Mortar WiFi substitutes a single PCIe x4 slot with no x1 slots at all.

What this means in practice: the Gaming Plus WiFi's second full-length PCIe 4.0 x16 slot is valuable for users who want to install a secondary card — such as a capture card, high-end NVMe add-in card, or even a secondary GPU for compute tasks — at a bandwidth level that won't bottleneck modern accessories. The two x1 slots further extend this flexibility for sound cards, networking cards, or other low-bandwidth add-ins. The Mortar WiFi's single x4 slot is more limited in throughput and physical compatibility, reflecting the space constraints typical of a Micro-ATX design.

The Gaming Plus WiFi holds a clear advantage here. Its broader mix of slot types and the inclusion of a full PCIe 4.0 x16 secondary slot make it substantially more versatile for multi-card or accessory-heavy builds. The Mortar WiFi covers the essentials for a single-GPU system but leaves little room to grow.

Audio capabilities are identical across both boards. Each supports 7.1 surround sound, includes an S/PDIF optical output for connecting to external receivers or DACs, and provides 2 rear audio connectors. There is nothing in the provided data to separate them.

The 7.1 channel support is worth noting for users with surround sound speaker setups or high-end headsets, as it covers the full range of mainstream audio configurations without requiring a dedicated sound card. The S/PDIF output is a useful addition for anyone routing audio digitally to an AV receiver or external audio processor, preserving signal quality over longer cable runs.

This group is a complete tie. Audio hardware should have no bearing on the choice between these two boards.

RAID support is one area where the Mortar WiFi quietly outpaces its sibling. While both boards handle the essentials — RAID 0 for performance striping and RAID 1 for mirroring and redundancy — the Mortar WiFi goes further by also supporting RAID 5 and RAID 10, neither of which is available on the Gaming Plus WiFi.

For most home users and gamers, RAID 0 and RAID 1 are sufficient. But RAID 5 distributes parity data across three or more drives, offering a balance of redundancy and usable capacity that is particularly valuable for small NAS-style setups or workstations where data protection matters without sacrificing too much storage space. RAID 10 combines striping and mirroring across four drives, delivering both speed and fault tolerance — the preferred choice for demanding workloads where both performance and reliability are non-negotiable.

The Mortar WiFi holds a clear edge in this group. Its broader RAID support makes it the more capable option for users who manage larger multi-drive arrays or have data-sensitive workloads. For single-drive or simple two-drive configurations, the difference is irrelevant — but anyone building a more serious storage setup will appreciate the Mortar's added flexibility.