GMKtec/Mini PCs
GMKtec NucBox M3 Mini PC Intel 12th Core i5 12450H · 32GB DDR4 3200 MT/s + 1TB M.2 PCIe 3.0 M.2 2280 / US/JP
US · GMKTEC-SKU-12D4B4D331B26CB1819D
Fixed configuration · Store catalog reference
Catalog referenceGMKTEC-SKU-12D4B4D331B26CB1819D
The hardware
Full Specifications
Every published specification, grouped by category. Select a heading to collapse.
Performance — CPU / GPU▾
| Processor | Intel Core i5-12450HSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
|---|---|
| Graphics | Intel Graphics for 12th Gen Intel ProcessorsSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
Memory & Storage▾
| Installed RAM | 32 GBSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
|---|---|
| Total storage | 1 TBSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
Display▾
| Screen technology | Not applicable |
|---|---|
| Size | Not applicableSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
| Resolution | Not applicableSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
| Refresh rate | Not applicableSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
Battery & Power▾
| Battery capacity | UnpublishedSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
|---|---|
| Power supply | Built-in coin cell battery · DC Power Adapter 20V / 5A, 100WSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
Connectivity▾
| Ports | USB-A: 3 × USB 3.2 Gen2 + 1 × USB 2.0 · HDMI: 2 × HDMI (up to 4096 × 2160 @ 60Hz) · USB-C: 1 × Type-C (DisplayPort / Data only, 5Gbps) · Audio: 1 × 3.5mm CTIA Audio Jack · LAN: 1 × RJ45 2.5G Ethernet · Power: 1 × DC IN (5.5 / 2.5mm)Source & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
|---|---|
| Wireless & networking | Wi-Fi 6 (Realtek 8852BE, up to 1201Mbps) · Bluetooth 5.2 · 2.5G Ethernet LAN (Intel i225)Source & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
Build & Physical▾
| Weight | UnpublishedSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
|---|---|
| Dimensions | 114 × 106 × 42.5 mmSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
Software & Bundle▾
| Operating system | Windows (version unspecified)Source & observationView specification source ↗Observed 2026-10-07T00:38:46.940246+00:00 reviewed evidence |
|---|---|
| Included bundle | User Manual · Warranty Card · Power Adapter · VESA Mount Bracket · HDMI CableSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 GMKtec US exact fixed variant and official specification table |
Motherboard & Memory Expansion▾
| Motherboard model | UnpublishedSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 Unpublished: no unambiguous exact-device manufacturer specification |
|---|---|
| Total RAM slots | UnpublishedSource & observationView specification source ↗Observed 2026-10-06T22:45:53.347320+00:00 Unpublished: no unambiguous exact-device manufacturer specification |
Independent testing
2 results from other configurations · 1 written reviewBenchmarks & Reviews
Cinebench R23 Multi Core7,662 pointsNotebookcheck · Other configurationTest detailsHide details
Rendering speed using all processor cores.
Higher is better- Test conditions
- Review settings; named power mode not reported · Microsoft Windows 11 Pro · Review's processor limits: 45 W short burst; 35 W sustained
- Test version
- Cinebench R23
- Published
- 2023-11-09
- Measurement date
- Unpublished
- Reviewed setup
- GMK NucBox M3 · Intel Core i5-12450H · Intel UHD Graphics Xe G4 48EUs · 32 GB RAM
- Configuration match
- Same component/pair in another configuration. Potential only; target realization unmeasured. Unknown memory_topology Unknown thermal_mode Unknown operating_point Noncritical differences: gpu, storage_gb, region
- Confidence
- Moderate
- Limitations
- Historical evidence; current firmware not retested · Measurement date unpublished · Sample origin unpublished · Pair/component fallback; target realization unmeasured
- Source location
- Cinebench R23 / Multi Core; reviewed-device row: GMK NucBox M3Intel Core i5-12450H
Cinebench R23 Single Core1,688 pointsNotebookcheck · Other configurationTest detailsHide details
Rendering speed using one processor core.
Higher is better- Test conditions
- Review settings; named power mode not reported · Microsoft Windows 11 Pro · Review's processor limits: 45 W short burst; 35 W sustained
- Test version
- Cinebench R23
- Published
- 2023-11-09
- Measurement date
- Unpublished
- Reviewed setup
- GMK NucBox M3 · Intel Core i5-12450H · Intel UHD Graphics Xe G4 48EUs · 32 GB RAM
- Configuration match
- Same component/pair in another configuration. Potential only; target realization unmeasured. Unknown memory_topology Unknown thermal_mode Unknown operating_point Noncritical differences: gpu, storage_gb, region
- Confidence
- Moderate
- Limitations
- Historical evidence; current firmware not retested · Measurement date unpublished · Sample origin unpublished · Pair/component fallback; target realization unmeasured
- Source location
- Cinebench R23 / Single Core; reviewed-device row: GMK NucBox M3Intel Core i5-12450H
Compare tests with the same version and settings. Expand each test for the measured setup and limitations.
Results marked “Other configuration” use a different device or configuration. This configuration may perform differently.
Expand benchmarksCollapse benchmarksComparison charts, test conditions & full reviews
Benchmarks & Reviews
Published test results and reviewer comments.
2 results from other configurations1 written review
Results marked “Other configuration” come from devices with a matching processor or graphics chip. This configuration may perform differently.
Compare tests with the same version and settings.
Processor
Cinebench R23 Multi Core
Higher is betterRendering speed using all processor cores. Compared with 6 reviewed mini pcs in this comparison.
Middle of these 6: 9,076.5 points
- GMK NucBox M6 Ultra · 32 GB ↗12,079 points
- Geekom XT12 Pro · 32 GB ↗11,036 points
- GMK NucBox K15 · 32 GB ↗9,702 points
- Blackview MP200 · 16 GB ↗8,451 points
- NiPoGi CK10 · 16 GB ↗8,129 points
- Reviewed configuration: GMK NucBox M3 · 32 GB ↗7,662 points
- Geekom A5 Pro · 16 GB ↗6,985 points
Memory, cooling and operating system versions differ between these reviewed devices. This small set does not describe the whole market. Notebookcheck comparison ↗
| Test | Result | Test conditions | Source |
|---|---|---|---|
| Cinebench R23 Multi CoreRendering speed using all processor cores.Higher is better | 7,662 pointsOther configuration | Review settings; named power mode not reported · Microsoft Windows 11 Pro · Review's processor limits: 45 W short burst; 35 W sustained Reviewed setup: GMK NucBox M3 · Intel Core i5-12450H · Intel UHD Graphics Xe G4 48EUs · 32 GB RAM | Notebookcheck ↗2023-11-09 |
| Cinebench R23 Single CoreRendering speed using one processor core.Higher is better | 1,688 pointsOther configuration | Review settings; named power mode not reported · Microsoft Windows 11 Pro · Review's processor limits: 45 W short burst; 35 W sustained Reviewed setup: GMK NucBox M3 · Intel Core i5-12450H · Intel UHD Graphics Xe G4 48EUs · 32 GB RAM | Notebookcheck ↗2023-11-09 |
Read the reviews
- Notebookcheck ↗2023-11-09GMK NucBox M3 · Intel Core i5-12450H · Intel UHD Graphics Xe G4 48EUs · 32 GB RAM
Configuration matching & limitations
Notebookcheck: Model review. Results describe the tested hardware; unspecified power modes and RAM topology do not establish an exact target test.
gaming pilot
- cpu
- Reviewer comments
- gpu
- Not measured
- gaming
- Not measured
performance pilot
- cpu
- Reviewer comments
- gpu
- Not measured
- gaming
- Not measured
- sustained
- Not measured
whole device
- cpu
- Reviewer comments
- gpu
- Not measured
- gaming
- Not measured
- sustained
- Not measured
- noise
- Not measured
- battery
- not applicable
- display
- not applicable
- build
- Not measured
An overall buying score is unavailable. The available measurements do not cover every aspect of the device.
Compare Configurations
Other mini pcs in the catalog. No ranking is implied.