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Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D, ToughRam 32GB DDR5 6000MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6WT-X870-590-LCS

Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D, ToughRam 32GB DDR5 6000MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6WT-X870-590-LCS

$5699.99

*Price sourced from Amazon.com. Last updated 2026-07-09. Price and availability subject to change.

Bottom line: The Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D, ToughRam 32GB DDR5 6000MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6WT-X870-590-LCS is a niche pick — read recent reviews before buying in the prebuilt gaming pcs category, priced around $5699.99. Read recent reviews carefully before committing.

What better way to power your battle station than the Reactor 9890S. Its unique octagonal prism shape isn't just a statement piece; it's a testament to innovation, designed to offer superior cooling and performance. Powered by the formidable AMD Ryzen™ 7 9800X3D processor and the revolutionary RTX 5090 graphics card, this gaming behemoth delivers unmatched performance for an immersive gaming experience. With 32GB of high-speed 6000MT/s Memory and a massive 2TB NVMe SSD, say goodbye to load times and hello to instant action.

SpecPicks Verdict

SpecPicks classifies Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D… as a niche pick — read recent reviews before buying in the prebuilt gaming pcs category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for prebuilt gaming pcs of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ NVIDIA GeForce RTX 5090, Display Port/HDMI
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • AMD Ryzen 7 9800X3D CPU, AMD X870 Chipset motherboard, 32GB DDR5 6000MT/s RGB, 2TB NVMe M.2, WiFi, Windows 11
  • NVIDIA GeForce RTX 5090, Display Port/HDMI
  • Enjoy Panoramic Views with 3mm TG Front panels and Excellent Airflow with Perforated Side Panels
  • Closed Loop Liquid Cooling with 360mm Radiator
  • Chassis I/O - 1x Type C, 2x USB 3.0, 1x Headphone, 1x Mic Ports

Full Specifications

BrandThermaltake
ColorWhite
MaterialTempered Glass
Case TypeTower
Model NameReactor 9890S
ConnectivityUSB, WiFi
Model NumberT6WT-X870-590-LCS
Built-In MediaRGB Lighting
Cooling MethodWater
Mfr Part NumberT6WT-X870-590-LCS
Antenna LocationGaming
Compatible DevicesATX components
Enclosure MaterialTempered Glass
Total USB 2.0 Ports10

Ready to buy?

Thermaltake LCGS Reactor 9890S Gaming Desktop (AMD Ryzen™ 7 9800X3D, ToughRam 32GB DDR5 6000MT/s RGB Memory, NVIDIA® GeForce RTX™ 5090, 2TB NVMe M.2, WiFi, Windows 11) T6WT-X870-590-LCS is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-07-09. Price and availability subject to change.

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