The MSI MAG B650 TOMAHAWK WIFI wins in 9 out of 14 comparable specs. Its biggest advantage is Max Memory (200% better).
PRO B660M-A WIFI DDR4 wins in 2 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose MAG B650 TOMAHAWK WIFI if you want the best overall performance — especially max memory.
Choose PRO B660M-A WIFI DDR4 if pcie x1 slots matters more to you.
| Spec | MSIMAG B650 TOMAHAWK WIFI | MSIPRO B660M-A WIFI DDR4 |
|---|---|---|
| Platform | ||
| Socket | AM5 | LGA1700 |
| Chipset | B650 | B660 |
| Form Factor | ATX | Micro ATX |
| PCIe Gen | 4 | 4 |
| Memory | ||
| Memory Type | DDR5 | DDR4 |
| Memory Slots | 4+100% | 2 |
| Max Memory | 192 GB | |
| 64 GB |
| Max Memory Speed | 6,600 MHz+38% | 4,800 MHz |
| Expansion | ||
| M.2 Slots | 3+50% | 2 |
| SATA Ports | 6+50% | 4 |
| PCIe x16 Slots | 2+100% | 1 |
| PCIe x1 Slots | 1 | 2+100% |
| Connectivity | ||
| USB Type-C | 1 | 1 |
| USB Type-A | 7+40% | 5 |
| Wi-Fi | Wi-Fi 6E+8% | Wi-Fi 6 |
| LAN | 2.5 GbE | 2.5 GbE |
| Audio | Realtek ALC4080 | Realtek ALC897 |
| Design | ||
| VRM Phases | 12+2+1+67% | 6+2+1 |
| Price | ||
| MSRP | $220 | $120−45% |
| Release Date | Oct 2022 | Jan 2022 |
