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Adamant Custom

Adamant Custom Ryzen 9 9900X3D 64GB 1TB RTX 5090 gaming PC

SKU CH-65AV-1AM85

A liquid-cooled desktop with a 12-core Ryzen 9 9900X3D, 64GB DDR5, 1TB NVMe SSD and RTX 5090 32GB GPU for workstation and gaming workloads

  • Screen sizeNo Screen
  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage1 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelAMD Ryzen 9 9900 × 3D
  • 12-core Ryzen 9 9900X3D reaches 5.50 GHz for heavy compute
  • 64 GB DDR5 handles large datasets and multitasking
  • RTX 5090 32 GB drives 4K gaming and AI workloads
  • 1 TB Samsung 990 PRO reads up to 7450 MB/s for fast load times
  • 240 mm liquid cooler keeps CPU temperatures low under sustained load

Purpose-built workstation

This desktop pairs a 12-core AMD Ryzen 9 9900X3D processor with an Nvidia GeForce RTX 5090 graphics card for modelling, video editing, rendering and AI learning workloads. The system ships with Windows 11 Pro and a 240 mm liquid cooler to sustain heavy multi-threaded performance. Buyers who need a compact form factor or a lower-power configuration will not find those options here.

Bundled component impact

The 64 GB DDR5 memory kit and 1 TB Samsung 990 PRO NVMe SSD provide high-throughput capacity for large datasets and project files. A Thermaltake Toughpower 1200 W 80 PLUS Gold power supply delivers stable current to the CPU and GPU under sustained load. The X870 motherboard adds rear USB4 ports at 40 Gbps, Intel 2.5 Gb Ethernet and Wi-Fi 7 connectivity. Users who require additional internal drive bays beyond the two 3.5 inch and two 2.5 inch slots must plan external storage.

Deciding specification

The GeForce RTX 5090 with 32 GB of video memory determines whether this system fits the target workflow. Its 32 GB frame buffer enables large-scene rendering and high-resolution AI inference that smaller cards cannot accommodate. If the workload fits within a lesser GPU memory capacity, the cost and power overhead of this card become unnecessary.

How it compares

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

Price $6,995.99
Pricier than about 90% 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 1 TB NVMe
Lower than about 70% of the 24,468 comparable items (median 2 TB).

New to this? Buying a gaming PC with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Year of release2026
Product typeBusiness Desktops & Workstations
Recommended useWorkstation
Product colorBlack
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900 × 3D
CPU socketAM5
Memory
RAM capacity64 GB DDR5
Memory slots4 total
Max supported RAM192 GB
Storage
SSD storage1 TB NVMe
Hard driveNo
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsGeForce RTX 5090
GPU interfacePCI Express x16
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 factorDesktop
Compatibility
Windows 11 supportReady
Software
Operating systemWindows 11 Pro
More details
AI capabilityAI Ready
Cooling methodLiquid Cooling

Questions about this item

When will the 240 mm liquid cooler or the 1200 W PSU fan need replacing?

The 240 mm AIO uses a sealed loop with no user-serviceable parts; plan on swapping the unit if pump noise appears after several years. The Thermaltake 1200 W 80 PLUS Gold PSU fan is rated for long life; replace only if bearing noise develops.

What component hits its limit first during an all-day render on the Ryzen 9 9900X3D and RTX 5090?

The CPU can draw up to its 12-core 4.4 GHz base with 5.50 GHz boost; sustained loads will push the 240 mm radiator to its thermal ceiling before the 1200 W PSU or 64 GB DDR5 become bottlenecks.

How loud and hot does the system get when the RTX 5090 and 12-core CPU run continuously?

The 240 mm Quiet Edition AIO and 140 mm case fans keep CPU temperatures in check; the 1200 W Gold PSU fan spins slowly under load. Expect a low hum rather than loud noise, with exhaust air warm but not extreme.

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