AM5 · DDR5 · ATX · Wi-Fi 7 · MSI global specification
An ATX AM5 board on AMD B850 with four DDR5 slots (up to 256 GB), a PCIe 5.0 x16 graphics slot, three M.2 slots (one PCIe 5.0 x4, two PCIe 4.0 x4), Realtek 5 Gb Ethernet and a 160 MHz Wi-Fi 7 module.
Specifications checked 26 Sept 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
Manufacturer specifications9 verified differences, led by Storage interfaces, expansion slots and electrical links and network interfaces. Compared in full below. Not a rating.
AM5 · DDR5 · ATX · Wi-Fi 7 · MSI global specification
An ATX AM5 board on AMD B850 with four DDR5 slots (up to 256 GB), a CPU-connected PCIe 5.0 x16 graphics slot, three M.2 slots with one at PCIe 5.0 x4, Realtek 5 Gb Ethernet and Wi-Fi 7.
Specifications checked 26 Sept 2026.
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Differences first. Select a topic for its graphic, sources and conditions.
Check the exact configuration and source conditions for your use.
M.2_1, M.2_2 connect to the CPU; M.2_3 connects to the chipset. · Manufacturer specification · Check the manual for M.2 SSD heatsink restrictions.
M.2_1, M.2_2 connect to the CPU; M.2_3 connects to the chipset. · Manufacturer specification · Check the manual for M.2 SSD heatsink restrictions.
Plan the complete platform. Check the exact CPU-support list, required BIOS and memory validation before buying. PCIe generations and lane allocations can change with the processor. A socket match or slot count is not a guarantee that every component works together at its highest advertised setting.
9 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
M.2_1, M.2_2 connect to the CPU; M.2_3 connects to the chipset. · Manufacturer specification · Check the manual for M.2 SSD heatsink restrictions.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsM.2_1, M.2_2 connect to the CPU; M.2_3 connects to the chipset. · Manufacturer specification · Check the manual for M.2 SSD heatsink restrictions.
MSI PRO B850-P WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Electrical link widths from MSI's specification, not a guarantee of installed-system performance.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsManufacturer specification · Electrical link widths from MSI's specification, not a guarantee of installed-system performance.
MSI PRO B850-P WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · MSI says Wi-Fi 7 and its Bluetooth version need Windows 11 24H2 and that the Bluetooth version depends on the Wi-Fi chipset vendor; 6 GHz use depends on national rules. Link capabilities are not measured throughput.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsManufacturer specification · MSI says Wi-Fi 7 and its Bluetooth version need Windows 11 24H2 and that the Bluetooth version depends on the Wi-Fi chipset vendor; 6 GHz use depends on national rules. Link capabilities are not measured throughput.
MSI PRO B850-P WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Manufacturer hardware description, not a measured audio-quality result.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsManufacturer specification · Manufacturer hardware description, not a measured audio-quality result.
MSI PRO B850-P WIFI — official product specificationsMSI PRO B850-P WIFI — official motherboard user guide (PDF)Check the exact configuration and source conditions for your use.
Manufacturer specification · Header counts do not specify electrical current limits.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsManufacturer specification · Header counts do not specify electrical current limits.
MSI PRO B850-P WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Requires a processor with integrated graphics; supported modes depend on the CPU.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsManufacturer specification · Requires a processor with integrated graphics; supported modes depend on the CPU.
MSI PRO B850-P WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
Link widths MSI lists per processor family for the named slot. · Manufacturer specification
MSI MAG B850 TOMAHAWK WIFI — official product specificationsLink widths MSI lists per processor family for the named slot. · Manufacturer specification
MSI PRO B850-P WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Requires compatible case ports and wiring; not rear-panel sockets.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsManufacturer specification · Requires compatible case ports and wiring; not rear-panel sockets.
MSI PRO B850-P WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
MSI MAG B850 TOMAHAWK WIFI — official product specificationsCheck the exact configuration and source conditions for your use.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · MSI's specification lists AMD MULTI-GPU Support. Besides the CPU-connected PCI_E1 slot, the only other x16-length slot (PCI_E2) is a chipset PCIe 4.0 x4 link; multi-GPU operation also depends on the graphics cards, drivers and software.
MSI MAG B850 TOMAHAWK WIFI — official product specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
MSI's specification page does not list SATA RAID modes for this board; absence is not established. · Manufacturer specification
MSI MAG B850 TOMAHAWK WIFI — official product specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
18 shared fields have the same recorded value.
| Specification | MSI MAG B850 TOMAHAWK WIFI | MSI PRO B850-P WIFI |
|---|---|---|
CPU socket SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | AM5 | AM5 |
Chipset SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | AMD B850 | AMD B850 |
Form factor SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | ATX; 243.84 × 304.8 mm | ATX; 243.84 × 304.8 mm |
CPU support / BIOS source SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Check MSI's CPU support list and the BIOS version it requires. Family support does not confirm the firmware installed on a retail board. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Check MSI's CPU support list and the BIOS version it requires. Family support does not confirm the firmware installed on a retail board. MSI PRO B850-P WIFI — official product specifications | AMD Ryzen 9000 / 8000 / 7000 Series Desktop Processors | AMD Ryzen 9000 / 8000 / 7000 Series Desktop Processors |
Rear Flash BIOS button SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | Yes | Yes |
Board dimensions SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Manufacturer board dimensions; case mounting and connector clearance still need checking. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Manufacturer board dimensions; case mounting and connector clearance still need checking. MSI PRO B850-P WIFI — official product specifications | 243.84 × 304.8 mm | 243.84 × 304.8 mm |
Memory type, slots and limit SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · CPU, BIOS and validated DIMM population determine supported capacity and speeds. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · CPU, BIOS and validated DIMM population determine supported capacity and speeds. MSI PRO B850-P WIFI — official product specifications | 4 DDR5 DIMM slots; dual channel; up to 256 GB; up to DDR5-8200+ (OC); JEDEC 4800–5600 MT/s; AMD EXPO; non-ECC unbuffered; CUDIMM (clock-driver bypass mode only) | 4 DDR5 DIMM slots; dual channel; up to 256 GB; up to DDR5-8200+ (OC); JEDEC 4800–5600 MT/s; AMD EXPO; non-ECC unbuffered; CUDIMM (clock-driver bypass mode only) |
Maximum listed memory SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Manufacturer capacity ceiling; CPU, BIOS and module validation apply. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Manufacturer capacity ceiling; CPU, BIOS and module validation apply. MSI PRO B850-P WIFI — official product specifications | 256 GB | 256 GB |
DIMM slots SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Physical positions for DDR5 modules, not a capacity or speed guarantee. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Physical positions for DDR5 modules, not a capacity or speed guarantee. MSI PRO B850-P WIFI — official product specifications | 4 | 4 |
Memory population OC limits SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Manufacturer OC ceilings, not guaranteed stable speed or measured performance; CPU, BIOS and memory population matter. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Manufacturer OC ceilings, not guaranteed stable speed or measured performance; CPU, BIOS and memory population matter. MSI PRO B850-P WIFI — official product specifications | Ryzen 9000: 1DPC 1R 8200+; 1DPC 2R 6400+; 2DPC 1R 6400+; 2DPC 2R 6000+ MT/s | Ryzen 9000: 1DPC 1R 8200+; 1DPC 2R 6400+; 2DPC 1R 6400+; 2DPC 2R 6000+ MT/s |
CUDIMM operating mode SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · CPU- and BIOS-dependent; check MSI's memory compatibility list. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · CPU- and BIOS-dependent; check MSI's memory compatibility list. MSI PRO B850-P WIFI — official product specifications | Clock-driver bypass mode only | Clock-driver bypass mode only |
Storage interfacesDifferent SourcesMSI MAG B850 TOMAHAWK WIFI M.2_1, M.2_2 connect to the CPU; M.2_3 connects to the chipset. · Manufacturer specification · Check the manual for M.2 SSD heatsink restrictions. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI M.2_1, M.2_2 connect to the CPU; M.2_3 connects to the chipset. · Manufacturer specification · Check the manual for M.2 SSD heatsink restrictions. MSI PRO B850-P WIFI — official product specifications | 1 × M.2 PCIe 5.0 x4; 2 × M.2 PCIe 4.0 x4; 4 × SATA 6 Gb/s | 1 × M.2 PCIe 5.0 x4; 1 × M.2 PCIe 4.0 x4; 1 × M.2 PCIe 4.0 x2; 4 × SATA 6 Gb/s |
M.2 storage slots SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | 3 | 3 |
SATA ports SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | 4 | 4 |
SATA RAID modes SourcesMSI MAG B850 TOMAHAWK WIFI MSI's specification page does not list SATA RAID modes for this board; absence is not established. · Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | Not listed by the manufacturer | RAID 0/1 |
NVMe RAID modes SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | RAID 0/1 | RAID 0/1 |
Expansion slots and electrical linksDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Electrical link widths from MSI's specification, not a guarantee of installed-system performance. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Electrical link widths from MSI's specification, not a guarantee of installed-system performance. MSI PRO B850-P WIFI — official product specifications | 2 × x16-length, 1 × x1-length: PCI_E1 PCIe 5.0 x16 (CPU); PCI_E2 PCIe 4.0 x4 (chipset); PCI_E3 PCIe 3.0 x1 (chipset) | 4 × x16-length: PCI_E1 PCIe 5.0 x16 (CPU); PCI_E2 PCIe 3.0 x1 (chipset); PCI_E3 PCIe 4.0 x4 (chipset); PCI_E4 PCIe 3.0 x1 (chipset) |
Primary PCIe link SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | PCI_E1: CPU PCIe 5.0 up to x16 | PCI_E1: CPU PCIe 5.0 up to x16 |
Processor-dependent link widthsDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Link widths MSI lists per processor family for the named slot. · Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Link widths MSI lists per processor family for the named slot. · Manufacturer specification MSI PRO B850-P WIFI — official product specifications | PCI_E1: PCIe 5.0 x16 (Ryzen 9000/7000), PCIe 4.0 x8 (Ryzen 8700/8600/8400), PCIe 4.0 x4 (Ryzen 8500/8300); M.2_1: PCIe 5.0 x4 (Ryzen 9000/7000), PCIe 4.0 x4 (Ryzen 8000); M.2_2: PCIe 4.0 x4 (Ryzen 9000/8700/8600/8400/7000), PCIe 4.0 x2 (Ryzen 8500/8300); M.2_3: PCIe 4.0 x4 (Ryzen 9000/8700/8600/8400/7000) | PCI_E1: PCIe 5.0 x16 (Ryzen 9000/7000), PCIe 4.0 x8 (Ryzen 8700/8600/8400), PCIe 4.0 x4 (Ryzen 8500/8300); M.2_1: PCIe 5.0 x4 (Ryzen 9000/7000), PCIe 4.0 x4 (Ryzen 8000); M.2_2: PCIe 4.0 x4 (Ryzen 9000/7000), PCIe 3.0 x4 (Ryzen 8700/8600/8400), PCIe 3.0 x2 (Ryzen 8500/8300) |
Slot and lane sharing SourcesMSI MAG B850 TOMAHAWK WIFI No source recorded. | Not provided | PCI_E2, PCI_E3 & PCI_E4 share the bandwidth, PCI_E3 slot will run at x2 speed when installing devices in the PCI_E2 or PCI_E4 slot. |
Processor-dependent display outputsDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Requires a processor with integrated graphics; supported modes depend on the CPU. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Requires a processor with integrated graphics; supported modes depend on the CPU. MSI PRO B850-P WIFI — official product specifications | 1 × HDMI; HDMI 2.1 FRL, maximum resolution of 8K 60Hz | 1 × HDMI; HDMI 2.1, maximum resolution of 4K 60Hz |
Onboard audioDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Manufacturer hardware description, not a measured audio-quality result. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Manufacturer hardware description, not a measured audio-quality result. MSI PRO B850-P WIFI — official product specificationsMSI PRO B850-P WIFI — official motherboard user guide (PDF) | Realtek ALC4080 Codec; 7.1-Channel USB High Performance Audio; Supports up to 32-bit/384kHz playback on front panel; Supports S/PDIF output | Realtek ALC897; 7.1-Channel High Definition Audio; 2 rear audio jacks; 1 rear optical S/PDIF out |
Rear USB portsDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | 4 × USB 2.0; 2 × USB 5Gbps Type-A; 2 × USB 10Gbps Type-A; 1 × USB 10Gbps Type-C; 1 × USB 20Gbps Type-C | 4 × USB 2.0; 1 × USB 5Gbps Type-A; 1 × USB 10Gbps Type-A; 2 × USB 10Gbps Type-C |
Front USB header capacityDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Requires compatible case ports and wiring; not rear-panel sockets. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Requires compatible case ports and wiring; not rear-panel sockets. MSI PRO B850-P WIFI — official product specifications | 4 × USB 2.0; 2 × USB 5Gbps Type-A; 1 × USB 10Gbps Type-C | 4 × USB 2.0; 4 × USB 5Gbps Type-A; 1 × USB 5Gbps Type-C |
Network interfacesDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · MSI says Wi-Fi 7 and its Bluetooth version need Windows 11 24H2 and that the Bluetooth version depends on the Wi-Fi chipset vendor; 6 GHz use depends on national rules. Link capabilities are not measured throughput. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · MSI says Wi-Fi 7 and its Bluetooth version need Windows 11 24H2 and that the Bluetooth version depends on the Wi-Fi chipset vendor; 6 GHz use depends on national rules. Link capabilities are not measured throughput. MSI PRO B850-P WIFI — official product specifications | Realtek 8126VB 5G LAN; Wi-Fi 7 (160 MHz channels, up to 2.9 Gb/s); Bluetooth 5.4 | Realtek 8126VB 5G LAN; Wi-Fi 7 (320 MHz channels, up to 5.8 Gb/s); Bluetooth 5.4 |
Lighting headers SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Addressable and analogue RGB connectors are different; check voltage before connecting lighting. The manual rates the 12 V JRGB connector at 3 A for up to 2 m of 5050 RGB strip, and each 5 V JARGB_V2 connector at 3 A for up to 180 individually addressable LEDs. MSI MAG B850 TOMAHAWK WIFI — official motherboard user guide (PDF)MSI PRO B850-P WIFI Manufacturer specification · Addressable and analogue RGB connectors are different; check voltage before connecting lighting. The manual rates the 12 V JRGB connector at 3 A for up to 2 m of 5050 RGB strip, and each 5 V JARGB_V2 connector at 3 A for up to 180 individually addressable LEDs. MSI PRO B850-P WIFI — official motherboard user guide (PDF) | 3 addressable V2 (ARGB Gen2) RGB headers; 1 RGB header | 3 addressable V2 (ARGB Gen2) RGB headers; 1 RGB header |
Fan and pump headersDifferent SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · Header counts do not specify electrical current limits. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI Manufacturer specification · Header counts do not specify electrical current limits. MSI PRO B850-P WIFI — official product specifications | 1 CPU; 1 pump/system combo; 6 system fan | 1 CPU; 1 pump/system combo; 4 system fan |
Diagnostic indicators SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | 4 × EZ Debug LED; 1 × EZ Memory Detection LED | 4 × EZ Debug LED; 1 × EZ Memory Detection LED |
Rear Clear CMOS button SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification MSI MAG B850 TOMAHAWK WIFI — official product specifications | Yes | Yes |
AMD multi-GPU support (MSI listing) SourcesMSI MAG B850 TOMAHAWK WIFI Manufacturer specification · MSI's specification lists AMD MULTI-GPU Support. Besides the CPU-connected PCI_E1 slot, the only other x16-length slot (PCI_E2) is a chipset PCIe 4.0 x4 link; multi-GPU operation also depends on the graphics cards, drivers and software. MSI MAG B850 TOMAHAWK WIFI — official product specificationsMSI PRO B850-P WIFI No source recorded. | Yes | Not provided |
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