MSI - MAG B650 Tomahawk WiFi vs MSI - MPG X870E Carbon WiFi
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | MSI - MAG B650 Tomahawk WiFi | MSI - MPG X870E Carbon WiFi |
|---|---|---|
| Max memory | 128 GB | 256 GB |
| M.2 slots | 3 | 4 |
| Wi-Fi 7 | false | true |
Between the MAG B650 Tomahawk WiFi and MPG X870E Carbon WiFi, the MAG B650 Tomahawk WiFi comes out ahead in several specs, while the MPG X870E Carbon WiFi wins on max memory / m.2 slots. Overall, the MAG B650 Tomahawk WiFi scores 54.8 and the MPG X870E Carbon WiFi scores 69.1 on our Mars Score.
Which should you buy?
The MPG X870E Carbon WiFi is the clear pick on raw spec strength, leading by 14.3 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 MAG B650 Tomahawk WiFi 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 MPG X870E Carbon WiFi if you care most about max memory / m.2 slots. Its strongest claims are max memory, m.2 slots, wi-fi 7. The single most decisive one: Max memory — 100.00% more. 256 GB vs 128 GB.
Both ship with comparable ram slots, pcie slots, so those specs do not separate the two — focus on the differences below.
Bottom line: the MPG X870E Carbon WiFi 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: MSI - MAG B650 Tomahawk WiFi or MSI - MPG X870E Carbon WiFi?
MSI - MPG X870E Carbon WiFi leads the current Mars Score by 14.3 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 MSI - MAG B650 Tomahawk WiFi if…
MSI - MAG B650 Tomahawk WiFi 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 - MPG X870E Carbon WiFi if…
MSI - MPG X870E Carbon WiFi has the measurable edge on max memory gb, 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 MSI - MAG B650 Tomahawk WiFi wins
- No decisive advantages.
Why MSI - MPG X870E Carbon WiFi wins
- ▲Max memory — 100.00% more. 256 GB vs 128 GB.
- ▲M.2 slots — 1.00 more. 4 vs 3.
- ▲Has Wi-Fi 7.
Spec comparison
Platform
Expansion
| Spec | MSI - MAG B650 Tomahawk WiFi | MSI - MPG X870E Carbon WiFi |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 128 GB | 256 GBlead |
| PCIe slots | 3 | 3 |
| M.2 slotsⓘ | 3 | 4lead |
I/O
| Spec | MSI - MAG B650 Tomahawk WiFi | MSI - MPG X870E Carbon WiFi |
|---|---|---|
| USB ports | 10 | 12lead |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | false | truelead |