The MSI MAG Z890 TOMAHAWK WIFI wins in 11 out of 14 comparable specs. Its biggest advantage is Max Memory (300% better).
PRO B660M-A WIFI DDR4 wins in 2 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose MAG Z890 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 Z890 TOMAHAWK WIFI | MSIPRO B660M-A WIFI DDR4 |
|---|---|---|
| Platform | ||
| Socket | LGA1851 | LGA1700 |
| Chipset | Z890 | B660 |
| Form Factor | ATX | Micro ATX |
| PCIe Gen | 5+25% | 4 |
| Memory | ||
| Memory Type | DDR5 | DDR4 |
| Memory Slots | 4+100% | 2 |
| Max Memory | 256 GB | |
| 64 GB |
| Max Memory Speed | 9,200 MHz+92% | 4,800 MHz |
| Expansion | ||
| M.2 Slots | 4+100% | 2 |
| SATA Ports | 4 | 4 |
| PCIe x16 Slots | 3+200% | 1 |
| PCIe x1 Slots | 0 | 2+100% |
| Connectivity | ||
| USB Type-C | 2+100% | 1 |
| USB Type-A | 8+60% | 5 |
| Wi-Fi | Wi-Fi 7+17% | Wi-Fi 6 |
| LAN | 5 GbE+100% | 2.5 GbE |
| Audio | Realtek ALC4080 | Realtek ALC897 |
| Design | ||
| VRM Phases | 16+1+1+100% | 6+2+1 |
| Price | ||
| MSRP | $290 | $120−59% |
| Release Date | Oct 2024 | Jan 2022 |
