Gigabyte - B850 AORUS Pro vs Gigabyte - X870 AORUS Master
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Gigabyte - B850 AORUS Pro | Gigabyte - X870 AORUS Master |
|---|---|---|
| Max memory | 192 GB | 256 GB |
| M.2 slots | 3 | 4 |
Between the B850 AORUS Pro and X870 AORUS Master, the B850 AORUS Pro comes out ahead in several specs, while the X870 AORUS Master wins on max memory / m.2 slots. Overall, the B850 AORUS Pro scores 59.2 and the X870 AORUS Master scores 69.1 on our Mars Score.
Which should you buy?
The X870 AORUS Master is the clear pick on raw spec strength, leading by 9.9 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 B850 AORUS Pro 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 X870 AORUS Master if you care most about max memory / m.2 slots. Its strongest claims are max memory, m.2 slots. The single most decisive one: Max memory — 33.33% more. 256 GB vs 192 GB.
Both ship with comparable ram slots, pcie slots, wi-fi 7, so those specs do not separate the two — focus on the differences below.
Bottom line: the X870 AORUS Master 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 - B850 AORUS Pro or Gigabyte - X870 AORUS Master?
Gigabyte - X870 AORUS Master leads the current Mars Score by 9.9 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 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.
Choose Gigabyte - X870 AORUS Master if…
Gigabyte - X870 AORUS Master has the measurable edge on max memory gb, m2 slots.
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 - B850 AORUS Pro wins
- No decisive advantages.
Why Gigabyte - X870 AORUS Master wins
- ▲Max memory — 33.33% more. 256 GB vs 192 GB.
- ▲M.2 slots — 1.00 more. 4 vs 3.
Spec comparison
Platform
Expansion
| Spec | Gigabyte - B850 AORUS Pro | Gigabyte - X870 AORUS Master |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 192 GB | 256 GBlead |
| PCIe slots | 3 | 3 |
| M.2 slotsⓘ | 3 | 4lead |
I/O
| Spec | Gigabyte - B850 AORUS Pro | Gigabyte - X870 AORUS Master |
|---|---|---|
| USB ports | 10 | 14lead |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | true | true |