The TUXEDO Stellaris 16 Gen 8 combines an RTX 5090 with optional external liquid cooling
He Stellaris 16 Gen 8 It supports an external liquid cooling base, but its main system remains inside the laptop. TUXEDO has installed three fans and reserves a rear connection for the Aquaris, an accessory designed for using the equipment on the desk. The new generation can now be reserved and combines the Intel Core Ultra 9 290HX Plus with GeForce RTX 5070 Ti, RTX 5080 or RTX 5090 graphics.
The team has a 16-inch screen and weighs between 2.6 and 2.8 kg depending on the panel chosen. Its aluminum chassis is 28 mm thick, a figure that leaves room for internal cooling and places this model among the laptops that prioritize power over weight. TUXEDO sells it with Linux preinstalled and allows you to choose Windows 11.
Three graphics cards and a 24-core processor
He Core Ultra 9 290HX Plus It brings together eight performance cores and 16 efficiency cores, with 24 threads and a maximum announced frequency of 5.5 GHz. TUXEDO allows you to adjust its consumption limits through Control Center. The choice of graphics card also determines the available video memory: 12 GB GDDR7 on the RTX 5070 Ti, 16 GB on the RTX 5080 and 24 GB on the RTX 5090.
The technical sheet gives different power ranges for each GPU, depending on the configuration. In the RTX 5070 Ti it indicates a TGP of 60 to 115 W plus 25 W of Dynamic Boost; for the RTX 5080 and 5090, the upper limit is 150 W plus those 25 W. These are configurable values, so the name of the card alone does not describe how it will work in each usage profile.
The memory uses two DDR5 slots and can reach 128 GBalthough the speed depends on the installed capacity. For storage there are two M.2 2280 slots: one uses PCIe 5.0 x4 and the other PCIe 4.0 x4. The manufacturer allows you to remove the bottom cover to access the RAM, SSD, wireless module and screwed battery.
Internal cooling with three fans and optional Aquaris
Two 80 mm fans take care of a good part of the dissipation. A third, smaller one, cools the memory area. TUXEDO estimates the combined power that the system can sustainably manage for the processor and graphics at up to 240 W. The company does not provide an independent measurement of temperatures or noise in the file to compare the equipment with other laptops.
The Aquaris It connects through the specific ports on the back and circulates distilled water through a circuit integrated into the laptop. Its function is to complement air cooling when working in a fixed location; The Stellaris can be used without that accessory. Control Center also allows you to modify the ventilation curves and power limits, with the consequent change in noise and performance.

IPS panel, Mini LED or OLED depending on configuration
The three screens have 16 inches, 16:10 format and resolution of 2,560 × 1,600 pixelsbut they differ in technology and frequency. He IPS panel basic is matte, reaches 500 nits and reaches 300 Hz. Mini LED option It retains 300 Hz and raises the advertised brightness to 750 nits in SDR and 1,000 nits in HDR. This version includes G-SYNC and Advanced Optimus.
The third alternative is OLEDwith a glossy surface and 240 Hz. TUXEDO indicates 500 nits in SDR and up to 1,000 nits in HDR. All three options cover 100% of the DCI-P3 space declared by the brand. There is a relevant limitation for those who want to use it exclusively with Linux: the sheet itself indicates that the HDR of the Mini LED and OLED panels is only fully supported in Windows.

Ports, battery and starting price
The connectors are distributed between the sides and the rear area. They include Thunderbolt 4 with USB-C charging up to 140 W, another USB-C with charging up to 100 W, three USB-A, HDMI 2.1, Mini DisplayPort 2.1, 2.5 Gbps Ethernet, UHS-II SD reader and audio jack. The power connector and the Aquaris port are also behind. Wireless connectivity can be configured with WiFi 6E or WiFi 7.
The battery is 99 Wh. TUXEDO advertises up to four hours of use away from the plug, without presenting that figure as autonomy in games or intensive tasks.
Reservations are now open and the company plans to begin deliveries in early November. In Germany, the initial configuration It costs 2,795 euros and includes RTX 5070 Ti, IPS screen, 16 GB of RAM and 500 GB SSD. The final price for Spain must be checked in the configurator according to taxes, components and shipping costs.
