The MSI MAG B860 TOMAHAWK WIFI wins in 7 out of 14 comparable specs. Its biggest advantage is Max Memory (100% better).
B550 AORUS PRO AC wins in 4 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose MAG B860 TOMAHAWK WIFI if you want the best overall performance — especially max memory.
Choose B550 AORUS PRO AC if pcie x1 slots matters more to you.
| Spec | GigabyteB550 AORUS PRO AC | MSIMAG B860 TOMAHAWK WIFI |
|---|---|---|
| Platform | ||
| Socket | AM4 | LGA1851 |
| Chipset | B550 | B860 |
| Form Factor | ATX | ATX |
| PCIe Gen | 4 | 5+25% |
| Memory | ||
| Memory Type | DDR4 | DDR5 |
| Memory Slots | 4 | 4 |
| Max Memory | 128 GB | 256 GB |
| Max Memory Speed | 5,000 MHz | 8,400 MHz+68% |
| Expansion | ||
| M.2 Slots | 2 | 4+100% |
| SATA Ports | 6+50% | 4 |
| PCIe x16 Slots | 3+50% | 2 |
| PCIe x1 Slots | 2+100% | 1 |
| Connectivity | ||
| USB Type-C | 1 | 2+100% |
| USB Type-A | 7 | 7 |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7+40% |
| LAN | 2.5 GbE | 2.5 GbE |
| Audio | Realtek ALC1220 | Realtek ALC4080 |
| Design | ||
| VRM Phases | 12+2 | 12+2+1+7% |
| Price | ||
| MSRP | $180−22% | $230 |
| Release Date | Jun 2020 | Jan 2025 |
