Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Gigabyte - Z890 Eagle | MSI - MAG B850 Tomahawk |
|---|---|---|
| M.2 slots | 3 | 4 |
| Wi-Fi 7 | false | true |
Between the Z890 Eagle and MAG B850 Tomahawk, the Z890 Eagle comes out ahead in several specs, while the MAG B850 Tomahawk wins on m.2 slots / wi-fi 7. Overall, the Z890 Eagle scores 59.2 and the MAG B850 Tomahawk scores 65 on our Mars Score.
Which should you buy?
The MAG B850 Tomahawk edges ahead on the Mars Score (59.2 vs 65), but the 5.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The Z890 Eagle 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 MAG B850 Tomahawk if you care most about m.2 slots / wi-fi 7. Its strongest claims are m.2 slots, wi-fi 7. The single most decisive one: M.2 slots — 1.00 more. 4 vs 3.
Both ship with comparable max memory, ram slots, pcie slots, so those specs do not separate the two — focus on the differences below.
Bottom line: the MAG B850 Tomahawk is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Gigabyte - Z890 Eagle or MSI - MAG B850 Tomahawk?
MSI - MAG B850 Tomahawk leads the current Mars Score by 5.8 points.The more useful decision is the trade-off behind that result: compare m.2 slots against the way you will actually use the product.
Choose Gigabyte - Z890 Eagle if…
Gigabyte - Z890 Eagle does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose MSI - MAG B850 Tomahawk if…
MSI - MAG B850 Tomahawk has the measurable edge on m2 slots, has wifi 7.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Gigabyte - Z890 Eagle wins
- No decisive advantages.
Why MSI - MAG B850 Tomahawk wins
- ▲M.2 slots — 1.00 more. 4 vs 3.
- ▲Has Wi-Fi 7.
Spec comparison
Platform
Expansion
| Spec | Gigabyte - Z890 Eagle | MSI - MAG B850 Tomahawk |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 192 GB | 192 GB |
| PCIe slots | 3 | 3 |
| M.2 slotsⓘ | 3 | 4lead |
I/O
| Spec | Gigabyte - Z890 Eagle | MSI - MAG B850 Tomahawk |
|---|---|---|
| USB ports | 10 | 10 |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | false | truelead |