Acemagic S3A vs GMKtec NucBox M6 Ultra
Acemagic S3A is the more capable pick; GMKtec NucBox M6 Ultra is the cheaper one - which wins comes down to the job below.
The verdict
- CPU
- Acemagic S3A has 1.3x the CPU throughput (29,232 vs 22,795 PassMark).
- Plex
- GMKtec NucBox M6 Ultra transcodes more 4K HDR streams (~5 vs ~3).
- Idle power
- Acemagic S3A idles lower (12W vs 13W) - cheaper to run 24/7.
- Networking
- GMKtec NucBox M6 Ultra has more NICs (2 vs 1) - better for a firewall or VLAN trunk.
- RAM ceiling
- GMKtec NucBox M6 Ultra takes more RAM (128GB vs 96GB).
Which wins for each job
| Job | Acemagic S3A | GMKtec NucBox M6 Ultra |
|---|---|---|
| Plex / Jellyfin | ~3 streams | ~5 streams win |
| Frigate NVR | ~4 cameras win | add a detector |
| Proxmox / VMs | 29,232 PassMark win | 22,795 PassMark |
| Firewall / router | 1 NICs | 2 NICs win |
| Local AI / LLM | no slot | no slot |
Approximate - capacity estimates from curated specs, the same logic as the recommender. Verify against your exact setup. Prices move; check the retailer.
Full specs
| Spec | Acemagic S3A | GMKtec NucBox M6 Ultra |
|---|---|---|
| Price (list) | $369 | $349 |
| CPU | AMD Ryzen 9 8945HS | AMD Ryzen 5 7640HS |
| Cores / threads | 8 | 6 |
| PassMark | 29,232 | 22,795 |
| iGPU | Radeon 780M | Radeon 760M (RDNA3) |
| NICs | 1 | 2 |
| NIC model | Realtek 2.5GbE | Realtek RTL8125 |
| RAM max (GB) | 96 | 128 |
| M.2 free | 2 | 1 |
| PCIe slot | none | none |
| Idle (W) | 12 | 13 |
| TDP (W) | 54 | 54 |