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Mini PCs · Head to head

Asus Chromebox 5a (Celeron 4GB + 128GB) vs Geekom GT1 Mega Ultra 9

Full Mini PCs comparison in 2026

Updated November 2026
Data from the official Asus and Geekom sites.
2026 verdict
Geekom GT1 Mega Ultra 9 is the desktop-replacement option and the winner here.
Geekom GT1 Mega Ultra 9
Winner
Geekom GT1 Mega Ultra 9
Buy on Amazon Italy
It runs an Intel Core Ultra 9 185H with Arc graphics and an AI Boost NPU, 32GB of DDR5-5600 expandable to 64GB, a 2TB PCIe Gen4 SSD, Wi-Fi 7, Bluetooth 5.4, dual 2.5G Ethernet, two USB4 Type-C ports plus five USB 3.2 Type-A, an SD Card 4.0 reader, a Kensington slot and a 3 year warranty, in a 680 g aluminium chassis with a VESA mount included. Asus Chromebox 5a (Celeron 4GB + 128GB) targets a completely different buyer, offering ChromeOS with instant boot, automatic updates and Google admin console management, seven USB ports, dual HDMI 2.1, DisplayPort 1.4, a micro SD reader and Wi-Fi 6E, on a Celeron 7305 with 4GB of memory and 128GB of storage, at a fraction of the price. Buy Asus Chromebox 5a (Celeron 4GB + 128GB) for managed, browser-first work; buy Geekom GT1 Mega Ultra 9 when creative software, multi-monitor office work or light virtualisation are on the menu.
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The biggest differences

Where these two are furthest apart, and by how much.

  • Storage Capacity16×Geekom GT1 Mega Ultra 92 TB vs 128 GB
  • Memory Capacity8×Geekom GT1 Mega Ultra 932 GB vs 4 GB
FeatureAsus Chromebox 5a (Celeron 4GB + 128GB)Geekom GT1 Mega Ultra 9Winner
Rating4.54.6Geekom GT1 Mega Ultra 9
Memory TypeDDR4DDR5Geekom GT1 Mega Ultra 9
Memory Speed3200 MT/s5600 MT/sGeekom GT1 Mega Ultra 9
Memory Capacity4 GB32 GBGeekom GT1 Mega Ultra 9
Storage Capacity128 GB2 TBGeekom GT1 Mega Ultra 9
CPU ModelIntel Celeron 7305Intel Core Ultra 9 185HDifferent strengths
Memory ConfigurationSingle-channelDual-channelDifferent strengths
GPU ModelIntel UHD GraphicsIntel Arc GraphicsDifferent strengths

Frequently Asked Questions

Which is better overall, the Geekom GT1 Mega Ultra 9 or the Asus Chromebox 5a (Celeron 4GB + 128GB)?

Geekom GT1 Mega Ultra 9, with a Core Ultra 9 185H, 32GB of DDR5-5600, a 2TB Gen4 SSD, Wi-Fi 7, dual 2.5G Ethernet and dual USB4, under a 3 year warranty. Asus Chromebox 5a (Celeron 4GB + 128GB) competes only on price and ChromeOS simplicity.

What can the Geekom do that the Chromebox cannot?

Run demanding Windows software. Geekom GT1 Mega Ultra 9 handles creative applications, multi-monitor office setups and light virtualisation, according to owners. Asus Chromebox 5a (Celeron 4GB + 128GB) runs ChromeOS, so it is limited to browser-based and Android applications on entry-level hardware.

How do their display options compare?

Asus Chromebox 5a (Celeron 4GB + 128GB) has dual HDMI 2.1, DisplayPort 1.4 and a USB-C output, so four screens. Geekom GT1 Mega Ultra 9 has dual HDMI 2.0, a Mini DisplayPort 1.4 and two USB4 Type-C ports for flexible multi-monitor setups.

Which is quieter?

The Chromebox is passive about noise because its Celeron barely works. Owners of Geekom GT1 Mega Ultra 9 report the fan becoming noticeably loud under sustained heavy load, which is the trade for its Core Ultra 9 performance.

Who should buy the Asus Chromebox 5a (Celeron 4GB + 128GB)?

Buyers deploying ChromeOS for classrooms, kiosks or signage who want automatic updates, central management, seven USB ports and four display outputs cheaply. Anyone doing creative or professional work should buy Geekom GT1 Mega Ultra 9 instead.

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