MINISFORUM AtomMan G1 Pro vs MSI Cubi NUC AI+ 3MG
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MINISFORUM AtomMan G1 Pro
Ryzen 9 8945HX, desktop RTX 5060 8GB, 32GB RAM, 1TB SSD, US
MSI Cubi NUC AI+ 3MG
Core Ultra 9 386H / 16GB DDR5 / 1TB SSD / Windows 11 Pro
Amazon results may include other models. Verify the processor, memory, storage, and seller before buying.
| Memory | ||
|---|---|---|
| Storage |
1Is it fast for normal work?
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
MSI Cubi NUC AI+ 3MG
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Stock memory limits CPU-heavy work Not available
2Can it handle sustained work?
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
MSI Cubi NUC AI+ 3MG
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High multi-core performance Not available
3Can it game?
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
MSI Cubi NUC AI+ 3MG
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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
4Is it loud or hot?
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
MSI Cubi NUC AI+ 3MG
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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
5How much electricity does it use?
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
MSI Cubi NUC AI+ 3MG
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Settled idle wall power Not available
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Gaming wall power Not available
6Can I upgrade and connect everything?
MINISFORUM AtomMan G1 Pro
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Memory is upgradeable Yes
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Storage is upgradeable Yes
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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 -
Security lock also restricts bottom access Not available
MSI Cubi NUC AI+ 3MG
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Memory is upgradeable Yes
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Storage is upgradeable Yes
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USB4 is present Not available
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Internal component access Not available
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Replaceable desktop GPU Not available
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Security lock also restricts bottom access
Level1Techs showed that the Kensington lock opening also secures the bottom cover, restricting access to memory and storage. The reviewed unit had 32GB memory rather than this SKU’s 16GB.
Level1Techs · 1:13
7Is it good value?
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
MSI Cubi NUC AI+ 3MG
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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
8Will it be dependable?
MINISFORUM AtomMan G1 Pro
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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 -
Network boot stack was disabled by default Not available
MSI Cubi NUC AI+ 3MG
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Seller warranty Not available
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Observed issues Not available
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Network boot stack was disabled by default
Level1Techs showed the UEFI network stack disabled in BIOS EB211IMS.1A20 and explained that it must be enabled for network boot. Firmware defaults can change.
Level1Techs · 8:17
References
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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.
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MSI. Cubi NUC AI+ 3MG US SKU specifications. Product page. Accessed .
Configuration: Core Ultra 9 386H / 16GB DDR5 / 1TB SSD / Windows 11 Pro
Disclosure: Manufacturer specifications; no MiniPCBench measurements.
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Level1Techs. Finally! Panther Lake! A Quick Look at the Cubi NUC AI+ 3MG. Video review. . Accessed .
Configuration: Core Ultra 9 386H / 32GB DDR5-5600 / 1TB Phison SSD / Windows 11 Pro. BIOS EB211IMS.1A20 dated March 4, 2026 shown. Power profile unconfirmed.
Disclosure: Reviewer thanks MSI for access to the hardware; whether the unit was loaned or retained is unclear. Affiliate link disclosed.
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 MINISFORUM AtomMan G1 Pro
- Provides 2 storage slots versus 1
Higher listed specifications for MSI Cubi NUC AI+ 3MG
- Uses a smaller 0.51 liter enclosure
Verified specifications
Manufacturer-sourced specifications and current testing status
Processor
| Specification | AtomMan G1 Pro | Cubi NUC AI+ 3MG |
|---|---|---|
| CPU | AMD Ryzen 9 8945HX | Intel Core Ultra 9 386H |
| Cores / threads | 16 / 32 | 16 / 16 |
| Processor default TDP | 55 W | Not disclosed |
| Integrated graphics | NVIDIA GeForce RTX 5060 desktop GPU with 8GB GDDR7 at up to 145W | Intel Graphics |
Memory and storage
| Specification | AtomMan G1 Pro | Cubi NUC AI+ 3MG |
|---|---|---|
| Memory type | 1x 32GB DDR5-5200 SO-DIMM | DDR5 SO-DIMM |
| Maximum memory | 96 GB | 96 GB |
| Upgradeable memory | Yes | Yes |
| Storage slots | 2 | 1 |
Connectivity
| Specification | AtomMan G1 Pro | Cubi NUC AI+ 3MG |
|---|---|---|
| Ethernet | 1x 5GbE RJ45 | 2 x Intel I226-V 2.5GbE |
| Wireless | Wi-Fi 7 + Bluetooth 5.4 | Wi-Fi 7; adapter model and Bluetooth version unconfirmed for this SKU |
| USB4 | No | Yes |
| Thunderbolt | No | Yes |
Size and price
| Specification | AtomMan G1 Pro | Cubi NUC AI+ 3MG |
|---|---|---|
| Enclosure volume | 3.86 liters | 0.51 liters |
| List price | $1,979 | Not published |
| Product class | Compact 1080p and 1440p gaming | Not assigned |