Lenovo ThinkCentre X Ultra Global Rollout: Ryzen AI Max SKUs, 128GB RAM and 10GbE Explained

Lenovo says the machine supports up to 128GB of unified memory in a compact 1.6L chassis meant for desks and other space-constrained work environments. It weighs 2 kg and measures 183 × 183 × 51 mm. Lenovo first showed it at Innovation World during IFA 2026 on September 3. Notebookcheck's October 20 report added the regional processor and configuration detail.

Three processors, two memory speeds​

At IFA, Lenovo talked mainly about the top chip. Notebookcheck says the Ryzen AI Max+ PRO 495 is now one of three options, joined by the Ryzen AI Max+ 388 from the Strix Halo family and the Ryzen AI Max+ 492 from the Gorgon Halo family.

The platform split affects memory speed:

Lenovo's own spec table lists the memory as onboard four-channel LPDDR5X at up to 8533MHz. That is the ceiling for the Gorgon Halo models, not a promise for every SKU. Because the memory is onboard, you can't upgrade it later. Choose the capacity and speed you want when you order.

Memory ceiling and VRAM allocation​

The X Ultra tops out at 128 GB. VideoCardz notes that this is below the 192GB maximum the AMD chip supports. Notebookcheck says other Gorgon Halo mini-PCs do offer 192 GB, including AMD's own Ryzen AI Halo Developer Platform.

Graphics memory comes out of the same pool as system RAM. The Radeon 8065S can use up to 96GB of unified memory as graphics memory. That memory is allocated from the same 128GB pool rather than being separate VRAM. Notebookcheck says the 64 GB models can assign up to 48 GB. This matters for local AI work. Whatever you give to the GPU is no longer available to Windows and your other applications.

Lenovo lists an NPU of up to 55 TOPS. Notebookcheck's earlier coverage cites up to 131 TOPS of combined platform compute for the top chip. Don't treat that as NPU-only throughput. One outlet notes that the 131 TOPS figure is the combined potential of the platform's compute units, while the NPU alone delivers 55 TOPS. I haven't seen independent benchmarks of any of this.

What each region gets​

Notebookcheck reports that the machine will officially support Windows 11 Pro and AMD's Ryzen AI Developer Platform. Lenovo says the Developer Platform ships by default in all markets. Lenovo's spec table is broader. It lists Windows 11 Pro and Home, AMD AI OS for Linux, Ubuntu certification, and a no-preloaded-OS option. Check the exact edition on the configuration page before you order, because it may differ by region.

On configurations, Notebookcheck reports:

• The US gets four SKUs.
• The entry model pairs the Ryzen AI Max+ 388 with 64 GB of RAM and a 1 TB SSD.
• The other three SKUs pair the Ryzen AI Max+ PRO 495 with 128 GB of RAM and a 1 TB, 2 TB or 4 TB SSD.
• The Ryzen AI Max+ 492 is headed to Africa, Europe and the Middle East.

Lenovo's product documentation describes storage of up to two 4 TB M.2 2280 drives. The configurations on sale are narrower than that.

Pricing and timing​

Tom's Hardware reports a November 2026 release. Lenovo's press release gives an expected starting price of €3,100. Notebookcheck reports a US starting price of $3,699. Lenovo says prices are estimates and may vary by country, configuration and channel, so treat these as starting points.

The 10 GbE caveat​

Headlines about 10 GbE can be misleading here. Lenovo's specs list one standard 10GbE RJ-45 port. The machine also has a rear punch-out slot that can be configured as VGA, DisplayPort 2.1 UHBR10, HDMI 2.1 FRL, serial, or a second 10GbE RJ-45. A second 10 GbE port is therefore a configuration choice that takes the place of one of the other outputs. It is not a standard feature. If you need two fast network ports and a serial or video output, check what the configurator offers.

Other listed I/O:

• Two front USB-C ports at 10 Gbps and a headset jack.
• Two rear Thunderbolt 4 ports at 40 Gbps.
• Two rear USB-A ports at 10 Gbps.
• Rear DisplayPort 2.1 and HDMI 2.1.
• Wi-Fi 7 with Bluetooth 5.4.
• Two M.2 2280 PCIe Gen4 ×4 SSD slots and one M.2 2230 slot for Wi-Fi.

Tom's Hardware calls Thunderbolt 4 rare on AMD platforms. That makes it a useful feature for docks and fast external storage.

Manageability and clustering​

For enterprise use, Lenovo lists ThinkShield, AMD PRO technologies and AMD DASH manageability. Lenovo's press release says the X Ultra is cluster-ready. Lenovo says up to four systems can be linked into one platform to run larger models, support longer context windows and multi-agent workflows, and handle more simultaneous requests. Notebookcheck's earlier report puts four clustered units at 512 GB of combined RAM. These are manufacturer claims. None of the sources I found give setup instructions or benchmark results for clustering, so test that before you plan around it.

Who should care​

The X Ultra suits teams that want a quiet, compact box for local AI development or inference, and want a managed Windows 11 Pro system with Linux as an option. It may be less suitable if you need more than 128 GB of memory, or if you want to buy a mix of chips in your own region. The Ryzen AI Max+ 388 model in the US trades slower memory for a lower entry price. If you plan to run large models, the 128 GB PRO 495 configurations are the better fit.

Before you commit to a fleet, check these:

1. Which processor and memory speed each SKU in your region uses.
2. The Windows edition and preload on the configuration you're ordering.
3. Whether the punch-out port option you need is actually offered.
4. Final local pricing, which can differ from the starting prices above.

Independent tests of sustained thermals, noise and AI performance should arrive once review units ship.