Mini PCs · Head to head

GMKtec NucBox M5 Ultra (32GB + 512GB) vs GMKtec NucBox M6 Ultra (32GB + 1TB)

Full Mini PCs comparison in 2026

Updated October 2026
Data from Amazon and official GMKtec site.
2026 verdict
One brand, two generations: the GMKtec NucBox M6 Ultra (32GB + 1TB) beats the GMKtec NucBox M5 Ultra (32GB + 512GB) with a higher owner rating, newer DDR5 memory running at 4800 MT/s instead of DDR4-3200, and double the storage at 1TB.
GMKtec NucBox M6 Ultra (32GB + 1TB)
Winner
GMKtec NucBox M6 Ultra (32GB + 1TB)
$799.99

Last recorded price

Buy on Amazon USA
The GMKtec NucBox M5 Ultra (32GB + 512GB) only wins on price, so the choice largely comes down to budget versus platform generation. Both machines ship with 32GB of memory, dual M.2 slots, Wi-Fi 6E, Bluetooth 5.2 and Windows 11 Pro, and both carry the same 1 year warranty. Buyers who want the newer DDR5 platform and more storage headroom should pick the GMKtec NucBox M6 Ultra (32GB + 1TB); those who just want the lowest entry price into the same brand should choose the GMKtec NucBox M5 Ultra (32GB + 512GB).
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FeatureGMKtec NucBox M5 Ultra (32GB + 512GB)GMKtec NucBox M6 Ultra (32GB + 1TB)Winner
Price$419.99$799.99GMKtec NucBox M5 Ultra (32GB + 512GB)
Rating4.34.2GMKtec NucBox M5 Ultra (32GB + 512GB)
Memory TypeDDR4DDR5GMKtec NucBox M6 Ultra (32GB + 1TB)
Memory Speed3200 MT/s4800 MT/sGMKtec NucBox M6 Ultra (32GB + 1TB)
Storage Capacity512 GB1 TBGMKtec NucBox M6 Ultra (32GB + 1TB)
CPU ModelAMD Ryzen 7 7730UAMD Ryzen 5 7640HSDifferent strengths
GPU ModelAMD Radeon Graphics (8 cores, up to 2000 MHz)AMD Radeon 760MDifferent strengths
Warranty1 year1 yearTie
Memory ConfigurationDual-channelDual-channelTie
Memory Capacity32 GB32 GBTie

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • GMKtec NucBox M5 Ultra (32GB + 512GB)
  • GMKtec NucBox M6 Ultra (32GB + 1TB)

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Frequently Asked Questions

Which is better overall: GMKtec NucBox M5 Ultra (32GB + 512GB) or GMKtec NucBox M6 Ultra (32GB + 1TB)?

The GMKtec NucBox M6 Ultra (32GB + 1TB), which carries a higher owner rating, newer DDR5 memory and double the storage. The GMKtec NucBox M5 Ultra (32GB + 512GB) wins only on price.

What is the biggest difference between the GMKtec NucBox M5 Ultra (32GB + 512GB) and the GMKtec NucBox M6 Ultra (32GB + 1TB)?

Memory generation and storage. The GMKtec NucBox M6 Ultra (32GB + 1TB) uses DDR5-4800 memory and a 1TB drive, while the GMKtec NucBox M5 Ultra (32GB + 512GB) uses older DDR4-3200 and a 512GB drive.

Do they use the same amount of memory?

Yes, both ship with 32GB in this comparison, but the GMKtec NucBox M6 Ultra (32GB + 1TB)'s DDR5 memory is faster than the GMKtec NucBox M5 Ultra (32GB + 512GB)'s DDR4.

Which has a better CPU for gaming or content work?

The GMKtec NucBox M6 Ultra (32GB + 1TB) uses an AMD Ryzen 5 7640HS with Radeon 760M graphics, a newer Zen 4 chip, while the GMKtec NucBox M5 Ultra (32GB + 512GB) runs an AMD Ryzen 7 7730U, an older mobile-class part.

Who should buy the GMKtec NucBox M6 Ultra (32GB + 1TB)?

Buyers who want the newer DDR5 platform and more storage from the start, and who don't mind paying a bit more for it.

Who should buy the GMKtec NucBox M5 Ultra (32GB + 512GB)?

Buyers who want the lowest possible entry price into a GMKtec mini PC and don't need DDR5 memory or the extra storage.

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