Between the MAG B650 Tomahawk WiFi and MEG Z890 Ace, the MAG B650 Tomahawk WiFi comes out ahead in several specs, while the MEG Z890 Ace wins on max memory / m.2 slots. Overall, the MAG B650 Tomahawk WiFi scores 54.8 and the MEG Z890 Ace scores 76.2 on our Mars Score.
Which should you buy?
The MEG Z890 Ace is the clear pick on raw spec strength, leading by 21.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
The MAG B650 Tomahawk WiFi does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the MEG Z890 Ace if you care most about max memory / m.2 slots. Its strongest claims are max memory, m.2 slots, wi-fi 7.
Both ship with comparable ram slots, pcie slots, so those specs do not separate the two — focus on the differences below.
Bottom line: the MEG Z890 Ace is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why MSI - MAG B650 Tomahawk WiFi wins
- No decisive advantages.
Why MSI - MEG Z890 Ace wins
- ▲Max memory — 50.00% more. 192 GB vs 128 GB.
- ▲M.2 slots — 3.00 more. 6 vs 3.
- ▲Has Wi-Fi 7.
Spec comparison
Platform
| Spec | MSI - MAG B650 Tomahawk WiFi | MSI - MEG Z890 Ace |
|---|---|---|
| Socketⓘ | AM5 | LGA1851 |
| Chipset | B650 | Z890 |
| Form factor | ATX | E-ATXlead |
Expansion
| Spec | MSI - MAG B650 Tomahawk WiFi | MSI - MEG Z890 Ace |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 128 GB | 192 GBlead |
| PCIe slots | 3 | 3 |
| M.2 slotsⓘ | 3 | 6lead |
I/O
| Spec | MSI - MAG B650 Tomahawk WiFi | MSI - MEG Z890 Ace |
|---|---|---|
| USB ports | 10 | 14lead |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | false | truelead |
Spec-level deep dives
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