Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASRock - Z890 Taichi Aqua | MSI - MAG B850 Tomahawk |
|---|---|---|
| M.2 slots | 5 | 4 |
Between the Z890 Taichi Aqua and MAG B850 Tomahawk, the Z890 Taichi Aqua comes out ahead in m.2 slots, while the MAG B850 Tomahawk wins on several specs. Overall, the Z890 Taichi Aqua scores 70.7 and the MAG B850 Tomahawk scores 65 on our Mars Score.
Which should you buy?
The Z890 Taichi Aqua edges ahead on the Mars Score (70.7 vs 65), but the 5.7-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Z890 Taichi Aqua if you care most about m.2 slots. The biggest gaps in its favor are m.2 slots. The single most decisive one: M.2 slots — 1.00 more. 5 vs 4.
The MAG B850 Tomahawk similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
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 Z890 Taichi Aqua 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: ASRock - Z890 Taichi Aqua or MSI - MAG B850 Tomahawk?
ASRock - Z890 Taichi Aqua leads the current Mars Score by 5.7 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 ASRock - Z890 Taichi Aqua if…
ASRock - Z890 Taichi Aqua has the measurable edge on m2 slots.
Choose MSI - MAG B850 Tomahawk if…
MSI - MAG B850 Tomahawk does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
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 ASRock - Z890 Taichi Aqua wins
- ▲M.2 slots — 1.00 more. 5 vs 4.
Why MSI - MAG B850 Tomahawk wins
- No decisive advantages.
Spec comparison
Platform
Expansion
| Spec | ASRock - Z890 Taichi Aqua | MSI - MAG B850 Tomahawk |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 192 GB | 192 GB |
| PCIe slots | 3 | 3 |
| M.2 slotsⓘ | 5lead | 4 |
I/O
| Spec | ASRock - Z890 Taichi Aqua | MSI - MAG B850 Tomahawk |
|---|---|---|
| USB ports | 14lead | 10 |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | true | true |