GMKtec NucBox K15 vs MINISFORUM AtomMan G1 Pro
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GMKtec NucBox K15
Core Ultra 5 125U / 32GB DDR5 / 1TB SSD / Windows 11 Pro / metallic gray and black / US plug
MINISFORUM AtomMan G1 Pro
Ryzen 9 8945HX, desktop RTX 5060 8GB, 32GB RAM, 1TB SSD, US
Amazon results may include other models. Verify the processor, memory, storage, and seller before buying.
| Memory | ||
|---|---|---|
| Storage |
1Is it fast for normal work?
GMKtec NucBox K15
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Stock memory limits CPU-heavy work Not available
MINISFORUM AtomMan G1 Pro
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Stock memory limits CPU-heavy work 1x 32GB stock memory
Robtech found that the factory single-DIMM layout depressed Geekbench multi-core, H.264 encoding, Linux code compilation, Photoshop, and Premiere results. Those workloads improved after replacing the stock 1x32GB module with a two-module kit and increasing the CPU power limit.
CPU, encoding, development, and Adobe application benchmarks · Stock Gaming mode with 1x32GB versus Beast mode with 2x16GB; exact 32GB/1TB review unit
Robtech · 5:04
2Can it handle sustained work?
GMKtec NucBox K15
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High multi-core performance Not available
MINISFORUM AtomMan G1 Pro
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High multi-core performance 16 cores under 100W
Craft Computing found the 16-core Ryzen 9 8945HX unusually close to high-end desktop processors in Cinebench while staying below 100W of CPU consumption, but considered the processor excessive for gaming-only use.
Cinebench multi-core · Exact 32GB/1TB review system
Craft Computing · 11:08
3Can it game?
GMKtec NucBox K15
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Cyberpunk 2077 Not available
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Helldivers 2 Not available
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Rainbow Six Siege X Not available
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Resolution tradeoff Not available
MINISFORUM AtomMan G1 Pro
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Cyberpunk 2077 71 fps
ETA PRIME observed about 71 FPS in Cyberpunk 2077 at 1440p Ultra with DLSS Quality and no frame generation while using Beast mode.
Cyberpunk 2077 gameplay · 1440p Ultra; DLSS Quality; no frame generation; Beast mode; stock 1x32GB memory
ETA PRIME · 8:56 -
Helldivers 2 70 fps
Craft Computing measured a 70 FPS average with a 61 FPS 0.1% low in Helldivers 2 at 1440p Ultra on the stock exact configuration.
Helldivers 2 gameplay benchmark · 1440p Ultra; exact 32GB/1TB review system
Craft Computing · 12:28 -
Rainbow Six Siege X 272 fps
Toasty Bros reported a 272 FPS average, 219 FPS minimum, and 311 FPS maximum in Rainbow Six Siege X at 1440p High.
Rainbow Six Siege X built-in benchmark · 1440p High; Beast mode; stock 1x32GB memory
Toasty Bros · 19:04 -
Resolution tradeoff 1080p native; 1440p tuned
Robtech concluded that native AAA gaming is best targeted at 1080p; higher resolutions generally require DLSS or lower detail settings. Craft Computing likewise found the 8GB VRAM limit required Medium settings in some demanding 1440p games.
Independent exact-system game suites · Stock RTX 5060 8GB
Robtech · 8:16
4Is it loud or hot?
GMKtec NucBox K15
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Load sound level Not available
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GPU peak temperature Not available
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Beast-mode CPU heat Not available
MINISFORUM AtomMan G1 Pro
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Load sound level 47 dBA
Robtech measured 47 dBA under load in the stock Gaming mode and 50 dBA with the CPU power limit maxed in Beast mode.
Sustained system load · Stock Gaming mode; exact 32GB/1TB free review sample
Robtech · 11:07 -
GPU peak temperature 88 C
Robtech measured an 88 C GPU peak and described it as high; the CPU stayed below its 100 C limit during the same review testing.
Sustained system load · Exact 32GB/1TB free review sample
Robtech · 10:52 -
Beast-mode CPU heat 86 C average; 93 C peak
ETA PRIME recorded an 86 C average and 93 C maximum CPU temperature while gaming at 1440p in the 100W Beast mode, without observing thermal throttling.
1440p game testing · 100W Beast mode; stock 1x32GB memory
ETA PRIME · 9:42
5How much electricity does it use?
GMKtec NucBox K15
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Settled idle wall power Not available
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Gaming wall power Not available
MINISFORUM AtomMan G1 Pro
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Settled idle wall power 37 W
Robtech measured about 37 W once the system settled at idle, but also observed frequent spikes as high as 80 W accompanied by audible fan ramping.
Windows desktop idle · Stock exact 32GB/1TB free review sample
Robtech · 10:28 -
Gaming wall power 221 W
Toasty Bros observed about 221 W at the wall while playing at 1440p in Beast mode.
1440p game testing · Beast mode; stock 1x32GB memory
Toasty Bros · 8:50
6Can I upgrade and connect everything?
GMKtec NucBox K15
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Memory is upgradeable Yes
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Storage is upgradeable Yes
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Opening the case requires care around the fan cable
Team Pandory demonstrated removing the feet, metal cover and case screws to reach the replaceable memory and SSDs. The upper fan remains connected to the mainboard as the case opens, so the cable needs care during access.
Team Pandory · 12:02 -
USB4 is present Not available
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Internal component access Not available
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Replaceable desktop GPU Not available
MINISFORUM AtomMan G1 Pro
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Memory is upgradeable Yes
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Storage is upgradeable Yes
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Opening the case requires care around the fan cable Not available
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USB4 is present No
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Internal component access 2x SO-DIMM; 2x M.2
Robtech found the side panel easy to remove and the second M.2 slot reachable in the tight interior, but accessing the two SO-DIMM slots requires removing the five-screw CPU cooler. The supplied extra M.2 heatsink supports a second drive.
Hands-on teardown and upgrade check · AtomMan G1 Pro chassis
Robtech · 2:54 -
Replaceable desktop GPU Low-profile PCIe GPU
The RTX 5060 is a standard low-profile desktop card in an internal PCIe 4.0 x16 slot. Reviewers considered a future same-size replacement plausible, but the proprietary rear opening and 350W supply limit compatibility.
Hands-on teardown and fit assessment · Gigabyte RTX 5060 OC Low Profile 8G
Craft Computing · 4:10
7Is it good value?
GMKtec NucBox K15
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Manufacturer price Not available
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Verified Amazon configuration Not available
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Independent value context Not available
MINISFORUM AtomMan G1 Pro
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Manufacturer price $1,589
MINISFORUM listed the exact 32GB/1TB US configuration for $1,589 when checked, against a $1,979 compare-at price.
Manufacturer retail-price check · Variant 47325699408117; SKU G1Pro31US
MINISFORUM -
Verified Amazon configuration B0GHYMV62Q
Amazon ASIN B0GHYMV62Q matched the Ryzen 9 8945HX, desktop RTX 5060 8GB, 32GB RAM, and 1TB SSD configuration when checked.
Retailer identity check · AtomMan G1 Pro 32GB/1TB
MINISFORUM -
Independent value context Compactness carries tradeoffs
Craft Computing considered the compact exact configuration competitive with similarly priced prebuilt towers, while noting that a full tower can offer more storage, lower temperatures, less noise, and slightly higher game performance.
Contemporary prebuilt price comparison · $1,439 review-time price
Craft Computing · 8:14
8Will it be dependable?
GMKtec NucBox K15
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Ubuntu detected the main devices
Lon.TV reported working video, audio, Bluetooth, networking and Wi-Fi during an Ubuntu test on his 32GB/1TB K15. The distribution version was not specified, so this does not establish compatibility with every Linux release.
Lon.TV · 9:02 -
Batocera 42 connected to Wi-Fi and a controller
Team Pandory reported that Batocera 42 booted and connected to Wi-Fi and a Bluetooth controller on his 48GB/1TB K15. This is a basic compatibility check on that configuration.
Team Pandory · 9:44 -
Seller warranty Not available
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Observed issues Not available
MINISFORUM AtomMan G1 Pro
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Ubuntu detected the main devices Not available
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Batocera 42 connected to Wi-Fi and a controller Not available
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Seller warranty 2 years
MINISFORUM advertises a two-year seller warranty and a 30-day return window for the US store.
Manufacturer warranty-policy check
MINISFORUM -
Observed issues Stable radios; hot and noisy
Robtech reported no RAM or SSD overheating, no Bluetooth or Wi-Fi trouble, and sustained CPU load without throttling. The same unit showed high idle draw with repeated fan ramping, high GPU temperature, and above-average load noise.
Wireless range, sustained load, idle, and acoustic checks · Exact 32GB/1TB free review sample
Robtech · 12:58
References
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GMKtec. NucBox K15 specifications and US configuration. Product page. Accessed .
Configuration: Core Ultra 5 125U / 32GB DDR5 / 1TB SSD / Windows 11 Pro / metallic gray and black / US plug
Disclosure: Manufacturer specifications; no MiniPCBench measurements.
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Lon.TV. GMKTec K15 Mini PC Review - The "Toyota Camry" Mini PC With Plenty of Upgrade Options. Video review. . Accessed .
Configuration: Core Ultra 5 125U / 32GB DDR5-4800 / 1TB NVMe SSD. Windows edition and firmware version unconfirmed; Ubuntu version unspecified. Performance mode used.
Disclosure: Free review unit and affiliate links disclosed; no other payment for coverage.
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Team Pandory. This Mini PC Runs Shockingly Cool and Quiet [GMKTEC K15 Review]. Video review. . Accessed .
Configuration: Core Ultra 5 125U / 48GB DDR5-4800 / 1TB NVMe SSD / Windows 11 Pro; Batocera 42 also tested. Firmware version unconfirmed.
Disclosure: Free review unit and affiliate links disclosed; no other payment for coverage.
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MINISFORUM. MINISFORUM AtomMan G1 Pro Gaming PC. Product page. . Accessed .
Configuration: Variant 47325699408117, SKU G1Pro31US: Ryzen 9 8945HX, desktop RTX 5060 8GB, 32GB DDR5-5200, 1TB SSD, US
Disclosure: Manufacturer specifications, current price, availability, shipping estimate, warranty, and return terms.
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ETA PRIME. The New G1 Pro Is FAST! SFF Gaming PC That Does It ALL!. Video review. . Accessed .
Configuration: Ryzen 9 8945HX, desktop RTX 5060 8GB, 1x32GB DDR5-5200, 1TB SSD review unit
Disclosure: The description discloses affiliate links and does not state how the review unit was obtained.
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Robtech. Minisforum's PS5 Killer Mini PC...G1 Pro Review. Video review. . Accessed .
Configuration: Ryzen 9 8945HX, desktop RTX 5060 8GB, 1x32GB DDR5-5200, 1TB Kingston SSD free review sample; separate 2x16GB tests identified where used
Disclosure: The description identifies a free review sample and includes manufacturer and retailer affiliate links.
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Craft Computing. SFF Gaming PC without the SFF Tax??? - Minisforum G1 Pro 16-Core / RTX 5060. Video review. . Accessed .
Configuration: Ryzen 9 8945HX, Gigabyte desktop RTX 5060 8GB, 1x32GB DDR5-5200, 1TB PCIe 4.0 SSD review unit
Disclosure: The description links the manufacturer product page without an affiliate disclosure and does not state how the review unit was obtained.
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Toasty Bros. CRAZY SFF Mini Gaming PC...But at What Cost?. Video review. . Accessed .
Configuration: Early Ryzen 9 8945HX, desktop RTX 5060 8GB, 1x32GB DDR5, 1TB PCIe 4.0 SSD review sample
Disclosure: The reviewer identifies the unit as an early sample; the description discloses affiliate links but does not state how the unit was obtained.
Value for money
No value comparison is available. It requires eligible test scores and at least four current price observations in seven days.
Specification differences
Differences supported by the listed manufacturer specifications
Higher listed specifications for GMKtec NucBox K15
- Provides 3 storage slots versus 2
Higher listed specifications for MINISFORUM AtomMan G1 Pro
Verified specifications
Manufacturer-sourced specifications and current testing status
Processor
| Specification | NucBox K15 | AtomMan G1 Pro |
|---|---|---|
| CPU | Intel Core Ultra 5 125U | AMD Ryzen 9 8945HX |
| Cores / threads | 12 / 14 | 16 / 32 |
| Processor default TDP | Not disclosed | 55 W |
| Integrated graphics | Intel Graphics | NVIDIA GeForce RTX 5060 desktop GPU with 8GB GDDR7 at up to 145W |
Memory and storage
| Specification | NucBox K15 | AtomMan G1 Pro |
|---|---|---|
| Memory type | DDR5 SO-DIMM; up to 5600 MT/s supported | 1x 32GB DDR5-5200 SO-DIMM |
| Maximum memory | 96 GB | 96 GB |
| Upgradeable memory | Yes | Yes |
| Storage slots | 3 | 2 |
Connectivity
| Specification | NucBox K15 | AtomMan G1 Pro |
|---|---|---|
| Ethernet | 2 x 2.5GbE, Realtek RTL8125BG | 1x 5GbE RJ45 |
| Wireless | MediaTek RZ616 / MT7922 Wi-Fi 6E and Bluetooth 5.2 | Wi-Fi 7 + Bluetooth 5.4 |
| USB4 | Yes | No |
| Thunderbolt | Not published | No |
Size and price
| Specification | NucBox K15 | AtomMan G1 Pro |
|---|---|---|
| Enclosure volume | Not published | 3.86 liters |
| List price | Not published | $1,979 |
| Product class | Not assigned | Compact 1080p and 1440p gaming |