Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASUS - ROG Strix Z890-E | Gigabyte - B850 AORUS Pro |
|---|---|---|
| M.2 slots | 5 | 3 |
Between the ROG Strix Z890-E and B850 AORUS Pro, the ROG Strix Z890-E comes out ahead in m.2 slots, while the B850 AORUS Pro wins on several specs. Overall, the ROG Strix Z890-E scores 70.7 and the B850 AORUS Pro scores 59.2 on our Mars Score.
Which should you buy?
The ROG Strix Z890-E is the clear pick on raw spec strength, leading by 11.5 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 ROG Strix Z890-E 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 — 2.00 more. 5 vs 3.
The B850 AORUS Pro 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 ROG Strix Z890-E 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: ASUS - ROG Strix Z890-E or Gigabyte - B850 AORUS Pro?
ASUS - ROG Strix Z890-E leads the current Mars Score by 11.5 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 ASUS - ROG Strix Z890-E if…
ASUS - ROG Strix Z890-E has the measurable edge on m2 slots.
Choose Gigabyte - B850 AORUS Pro if…
Gigabyte - B850 AORUS Pro 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 ASUS - ROG Strix Z890-E wins
- ▲M.2 slots — 2.00 more. 5 vs 3.
Why Gigabyte - B850 AORUS Pro wins
- No decisive advantages.
Spec comparison
Platform
Expansion
| Spec | ASUS - ROG Strix Z890-E | Gigabyte - B850 AORUS Pro |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 192 GB | 192 GB |
| PCIe slots | 3 | 3 |
| M.2 slotsⓘ | 5lead | 3 |
I/O
| Spec | ASUS - ROG Strix Z890-E | Gigabyte - B850 AORUS Pro |
|---|---|---|
| USB ports | 12lead | 10 |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | true | true |