Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASRock - X870E Taichi | ASUS - Prime Z890-P |
|---|---|---|
| Max memory | 256 GB | 192 GB |
| M.2 slots | 5 | 4 |
| Wi-Fi 7 | true | false |
Between the X870E Taichi and Prime Z890-P, the X870E Taichi comes out ahead in max memory / m.2 slots, while the Prime Z890-P wins on several specs. Overall, the X870E Taichi scores 74.6 and the Prime Z890-P scores 65 on our Mars Score.
Which should you buy?
The X870E Taichi is the clear pick on raw spec strength, leading by 9.6 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.
Pick the X870E Taichi if you care most about max memory / m.2 slots. The biggest gaps in its favor are max memory, m.2 slots, wi-fi 7. The single most decisive one: Max memory — 33.33% more. 256 GB vs 192 GB.
The Prime Z890-P similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable ram slots, pcie slots, so those specs do not separate the two — focus on the differences below.
Bottom line: the X870E Taichi 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 - X870E Taichi or ASUS - Prime Z890-P?
ASRock - X870E Taichi leads the current Mars Score by 9.6 points.The more useful decision is the trade-off behind that result: compare m.2 slots, max memory against the way you will actually use the product.
Choose ASRock - X870E Taichi if…
ASRock - X870E Taichi has the measurable edge on max memory gb, m2 slots, has wifi 7.
Choose ASUS - Prime Z890-P if…
ASUS - Prime Z890-P 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 - X870E Taichi wins
- ▲Max memory — 33.33% more. 256 GB vs 192 GB.
- ▲M.2 slots — 1.00 more. 5 vs 4.
- ▲Has Wi-Fi 7.
Why ASUS - Prime Z890-P wins
- No decisive advantages.
Spec comparison
Platform
Expansion
| Spec | ASRock - X870E Taichi | ASUS - Prime Z890-P |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 256 GBlead | 192 GB |
| PCIe slots | 3 | 3 |
| M.2 slotsⓘ | 5lead | 4 |
I/O
| Spec | ASRock - X870E Taichi | ASUS - Prime Z890-P |
|---|---|---|
| USB ports | 13lead | 10 |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | truelead | false |