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Adamant Custom

Adamant Custom 24-Core Ultra 9 285K RTX 5090 64GB 8TB Gaming PC

SKU CH-89W4-3DBAK

A 24-core Intel Core Ultra 9 285K and RTX 5090 32GB desktop with 64GB DDR5, 8TB NVMe storage and liquid cooling for rendering, AI workloads and high-end gaming

  • Screen sizeNo Screen
  • ProcessorIntel Core Ultra 9 (Series 2)
  • RAM capacity64 GB DDR5
  • SSD storage8 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelIntel Core Ultra 9 285K
  • 24-core Intel Core Ultra 9 285K powers heavy rendering and AI workloads
  • GeForce RTX 5090 with 32GB VRAM drives 4K gaming and creative tasks
  • 64GB DDR5 memory handles large datasets with room to expand to 192GB
  • 8TB NVMe storage via dual 4TB Samsung 990 PRO drives reads up to 7450 MB/s
  • 360mm liquid cooler and 1200W 80 PLUS Gold PSU keep thermals and power stable

Core specification

This desktop is built around a 24-core Intel Core Ultra 9 285K processor and an Nvidia GeForce RTX 5090 graphics card with 32GB of video memory. It targets creators and engineers who run rendering, modelling or AI-learning workloads that demand sustained multi-threaded throughput and large GPU memory capacity. The system ships with Windows 11 Pro installed.

Compatibility checks

Verify that your workspace can accommodate a tower measuring 447 mm deep by 215 mm wide by 469 mm high. The motherboard provides four memory slots with 64GB of DDR5 populated and supports up to 192GB total. Rear I/O includes one USB4 Type-C port, two USB 3.2 Gen 2 ports, three USB 3.2 Gen 1 ports and four USB 2.0 ports. Network connectivity uses 2.5Gbps Ethernet and Wi-Fi 7 with Bluetooth 5.4.

Included components

A 360mm liquid cooler handles CPU thermals while a Thermaltake Toughpower 1200W 80 PLUS Gold unit supplies power. Storage consists of two 4TB Samsung 990 PRO PCIe 4.0x4 drives in M.2 slots delivering up to 7450 MB/s read and 6900 MB/s write speeds. The Gigabyte Z890 Eagle board adds four SATA 6Gb/s ports with RAID support and four additional M.2 connectors for future expansion.

How it compares

Measured against everything we stock in Gaming PCs, at today’s prices. Recalculated every night.

Price $7,714.99
Pricier than about 91% of the 24,925 comparable items (median $2,694.99).
RAM capacity 64 GB DDR5
Higher than about 60% of the 24,338 comparable items (median 32 GB).
SSD storage 8 TB NVMe
Higher than about 99% of the 24,468 comparable items (median 2 TB).

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Specifications

Product
Year of release2026
Product colorBlack
Processor
ProcessorIntel Core Ultra 9 (Series 2)
CPU modelIntel Core Ultra 9 285K
CPU socketLGA 1851
Memory
RAM capacity64 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage8 TB NVMe
Hard driveNo
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsGeForce RTX 5090
Audio & video
Audio chipIntegrated
Sound channels7.1 channels
Connectivity
Wi-Fi standardWi-Fi 7
Network speed2.5 Gbit/s
Ethernet controllerIntegrated
Wi-Fi802.11be Wireless LAN
Bluetooth support5.4
Ports & slots
Ethernet port1 port
Size & build
Form factorTower
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro
More details
AI capabilityAI Ready
Cooling methodLiquid Cooling

Questions about this item

What comes in the box and what must I buy separately?

The tower ships with the Core Ultra 9 285K, 64 GB DDR5, two 4 TB Samsung 990 PRO drives, RTX 5090 32 GB, 1200 W 80 PLUS Gold PSU, 360 mm AIO cooler, Z890 EAGLE motherboard, Windows 11 Pro and a tempered-glass case. Monitor, keyboard and mouse are not included.

Should I choose the 64 GB DDR5 configuration or the 192 GB maximum?

The system arrives with 64 GB DDR5 installed across four slots. The board supports up to 192 GB, so you can add modules later if workloads demand more capacity.

What does the 5.70 GHz boost clock mean once the PC is running?

The 24-core CPU can reach 5.70 GHz on active cores under load, while the 360 mm liquid cooler keeps temperatures in check during sustained rendering or AI tasks.

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