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Black mid-tower gaming desktop with tempered glass side panel and RGB lighting visible inside

Skytech

Skytech ST-LEGACY4-1599-B-AL gaming PC, Ultra 9 285K, RTX 5090 32GB, 64GB DDR5 6000, 2TB NVMe, 1200W

SKU CH-1680-E75JM MPN ST-LEGACY4-1599-B-AL

Gaming desktop with an Intel Core Ultra 9 285K processor, RTX 5090 32GB GDDR7 graphics, 64GB DDR5 6000 memory and a 2TB NVMe SSD

  • CPU TypeIntel Core Ultra 9
  • CPU NameIntel Core Ultra 9 285K
  • Installed Qty1
  • Max Supported Qty1
  • CPU Base Frequency3.70GHz
  • Turbo Frequency5.70GHz

Options Antec P1 Performance Black / U9 285K / 5090 / 64G / 2T

Struck-through versions exist but are not stocked here.

GPU 5090

CPU U9 285K

Struck-through versions exist but are not stocked here.

  • Intel Core Ultra 9 285K reaches 5.7 GHz turbo for responsive compute
  • NVIDIA RTX 5090 with 32 GB GDDR7 drives high-fidelity gaming and AI workloads
  • 64 GB DDR5 6000 memory sustains multitasking and creative throughput
  • 2 TB Gen5 NVMe SSD loads games and projects fast
  • 1200 W Gold ATX 3.0 PSU and 420 mm AIO keep the system stable under load

Built for AI workloads and 4K gaming

This desktop pairs an Intel Core Ultra 9 285K processor with an NVIDIA GeForce RTX 5090 graphics card holding 32 GB of GDDR7 memory. The system targets creators and enthusiasts who need local AI acceleration alongside high-frame-rate 4K play. Windows 11 Home 64-bit is pre-installed on the 2 TB Gen5 NVMe SSD.

Capacity and headroom

Sixty-four gigabytes of DDR5 6000 memory provides ample space for large language models, heavy multitasking and complex creative timelines. The 2 TB NVMe drive holds the operating system and active project files, though users with extensive media libraries will need secondary storage. The 1200 W ATX 3.0 power supply delivers stable current for the GPU and CPU under sustained load.

What the bundled cooler and software change

A 420 mm AIO liquid cooler with ARGB fans keeps the Ultra 9 285K at 3.7 GHz base and 5.7 GHz turbo clocks during long renders. Intel AI Boost built into the CPU handles real-time video and voice optimisation for streaming and conferencing. NVIDIA Tensor cores and DLSS 4 on the RTX 5090 accelerate Stable Diffusion, image enhancement and high-refresh gaming without extra configuration.

Highlights

  • Intel Core Ultra 9 285K reaches 5.7 GHz turbo for responsive compute
  • NVIDIA RTX 5090 with 32 GB GDDR7 drives high-fidelity gaming and AI workloads
  • 64 GB DDR5 6000 memory sustains multitasking and creative throughput
  • 2 TB Gen5 NVMe SSD loads games and projects fast
  • 1200 W Gold ATX 3.0 PSU and 420 mm AIO keep the system stable under load

Specifications

CPU TypeIntel Core Ultra 9
CPU NameIntel Core Ultra 9 285K
Installed Qty1
Max Supported Qty1
CPU Base Frequency3.70GHz
Turbo Frequency5.70GHz
CPU Socket TypeLGA 1851
GPU/VGA TypeGeForce RTX 5090
GPU Memory32 GB GDDR7
Virtual Reality ReadyYes
Memory Capacity64GB DDR5
Memory SpeedDDR5 6000
SSD2TB NVMe
HDDNo
Operating SystemWindows 11 Home
Power Supply1200W
TypeGaming & Entertainment
Release Year2025
AI FeaturesIntel AI Boost:
Powered by the Intel Core Ultra 9 285K processor, this system features next-generation AI acceleration built directly into the CPU. With enhanced multitasking, real-time video and voice optimization, and superior responsiveness, it provides efficient local AI processing for demanding creative workflows and professional productivity.
NVIDIA Tensor Core:
The GeForce RTX 5090 GPU delivers exceptional AI computing power for advanced creative and entertainment applications, including Stable Diffusion, image enhancement, and voice synthesis. With DLSS 4, it enables ultra-sm
UsageConsumer
ColorBlack
ProcessorIntel Core Ultra U9 285K
Memory64GB DDR5
Storage2TB_NVME_SSD
Windows 11Ready
BrandSkytech
ModelSTT-LEGACY4-1599-C05-*-**
ChipsetIntel Z890
Shipping weight13.61 kg
Package size612 × 597 × 318 mm

Other versions of this model

3 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will my existing PCIe 4.0 NVMe SSD work in the Z890 motherboard alongside the 2TB Gen5 NVMe?

Yes, the Z890 board supports PCIe 4.0 drives so your older NVMe SSD will function normally next to the 2TB Gen5 NVMe.

How can I confirm the 64GB DDR5 6000 memory is running at its rated speed after first boot?

Open Task Manager or enter the BIOS and verify the memory frequency reads 6000 MT/s.

Does the 1200W Gold ATX 3.0 power supply include the 12VHPWR cable needed for the RTX 5090 32GB GDDR7?

The 1200W Gold ATX 3.0 unit ships with the native 12VHPWR connector required by the RTX 5090.

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