Between the NUC 15 Pro and NucBox M6, the NUC 15 Pro comes out ahead in ram and storage, while the NucBox M6 wins on tdp and volume. Overall, the NUC 15 Pro scores 72.2 and the NucBox M6 scores 67.1 on our Mars Score.
Which should you buy?
The NUC 15 Pro edges ahead on the Mars Score (72.2 vs 67.1), but the 5.1-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the NUC 15 Pro 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 ram, storage, thunderbolt.
Pick the NucBox M6 if you care most about tdp and volume. Its strongest claims are tdp, volume.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the NUC 15 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why ASUS - NUC 15 Pro wins
- ▲RAM — 100.00% more. 32 GB vs 16 GB.
- ▲Storage — 100.00% more. 1024 GB vs 512 GB.
- ▲Has Thunderbolt.
Why GMKtec - NucBox M6 wins
- ▲TDP — 20.00 W less. 45 vs 65.
- ▲Volume — 0.15 L less. 0.55 vs 0.7.
Spec comparison
Core
Form & I/O
| Spec | ASUS - NUC 15 Pro | GMKtec - NucBox M6 |
|---|---|---|
| Volume | 0.7 L | 0.55 Llead |
| Weight | 0.67 kg | 0.55 kglead |
| TDPⓘ | 65 W | 45 Wlead |
| USB ports | 6lead | 4 |
| Thunderboltⓘ | truelead | false |
Frequently asked
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.