Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASUS - ROG NUC (2025) | GMKtec - NucBox M6 |
|---|---|---|
| Storage | 2048 GB | 512 GB |
| TDP | 170 W | 45 W |
| RAM | 32 GB | 16 GB |
| Volume | 2.5 L | 0.55 L |
| Thunderbolt | true | false |
Between the ROG NUC (2025) and NucBox M6, the ROG NUC (2025) comes out ahead in storage / ram, while the NucBox M6 wins on tdp / volume. Overall, the ROG NUC (2025) scores 59.1 and the NucBox M6 scores 67.1 on our Mars Score.
Which should you buy?
The NucBox M6 edges ahead on the Mars Score (59.1 vs 67.1), but the 8.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the ROG NUC (2025) if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. The biggest gaps in its favor are storage, ram, thunderbolt. The single most decisive one: Storage — 300.00% more. 2048 GB vs 512 GB.
Pick the NucBox M6 if you care most about tdp / volume. Its strongest claims are tdp, volume. The single most decisive one: TDP — 125.00 W less. 45 vs 170.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the NucBox M6 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 NUC (2025) or GMKtec - NucBox M6?
GMKtec - NucBox M6 leads the current Mars Score by 8.0 points.The more useful decision is the trade-off behind that result: compare ram, storage, volume, tdp against the way you will actually use the product.
Choose ASUS - ROG NUC (2025) if…
ASUS - ROG NUC (2025) has the measurable edge on storage gb, ram gb, has thunderbolt.
Choose GMKtec - NucBox M6 if…
GMKtec - NucBox M6 has the measurable edge on tdp w, volume l.
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 NUC (2025) wins
- ▲Storage — 300.00% more. 2048 GB vs 512 GB.
- ▲RAM — 100.00% more. 32 GB vs 16 GB.
- ▲Has Thunderbolt.
Why GMKtec - NucBox M6 wins
- ▲TDP — 125.00 W less. 45 vs 170.
- ▲Volume — 1.95 L less. 0.55 vs 2.5.
Spec comparison
Core
Form & I/O
| Spec | ASUS - ROG NUC (2025) | GMKtec - NucBox M6 |
|---|---|---|
| Volume | 2.5 L | 0.55 Llead |
| Weight | 1.5 kg | 0.55 kglead |
| TDPⓘ | 170 W | 45 Wlead |
| USB ports | 7lead | 4 |
| Thunderboltⓘ | truelead | false |