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Black Corsair 4000D tower with tempered glass side panel, 240 mm liquid cooler visible inside

Adamant Custom

Adamant Custom 20-Core Ultra 7 265K Z890 TUF 128GB DDR5 1TB NVMe RTX 5070 Gaming PC

SKU CH-FHDG-SRX5N

A 20-core Intel Core Ultra 7 265K desktop with 128GB DDR5, 1TB NVMe SSD and RTX 5070 graphics for rendering, modelling and AI workloads

  • Release Year2026
  • TypeBusiness Desktops & Workstations
  • Form FactorDesktop
  • AI FeaturesAI Ready
  • UsageWork / Business
  • ColorBlack
  • 20-core Intel Core Ultra 7 265K powers heavy rendering and AI workloads
  • 128 GB DDR5 memory handles large datasets and multitasking with ease
  • 1 TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s read and 6900 MB/s write speeds
  • Nvidia GeForce RTX 5070 12 GB GPU accelerates creative and gaming performance
  • 240 mm liquid cooler keeps the CPU quiet under sustained loads

20-Core AI Workstation

This desktop combines a 20-core Intel Core Ultra 7 265K processor with 128GB of DDR5 memory and an Nvidia GeForce RTX 5070 graphics card. It is built for professionals who need local compute for rendering, modelling and AI learning workloads alongside high-refresh gaming. The system ships with Windows 11 Pro and a 1TB Samsung 990 PRO NVMe drive. Liquid cooling keeps the CPU stable under sustained multi-threaded loads.

Z890 Platform Requirements

The motherboard uses the LGA 1851 socket and Z890 chipset, so any future processor upgrade must match that socket. Four DDR5 slots are populated to reach 128GB, leaving no free slots for expansion without removing modules. The 750W 80 PLUS Bronze power supply delivers a fixed output ceiling for the current GPU and CPU combination. The Corsair 4000D case provides two 3.5-inch and two 2.5-inch internal drive bays for additional storage.

Upgrade Path Considerations

This configuration replaces a system limited to 64GB of memory or a previous-generation GPU with less than 12GB of VRAM. The jump is worthwhile when workflows exceed 64GB RAM or require the RTX 5070 feature set for local inference and real-time viewport performance. Builders who need a second graphics card or more than four M.2 drives should look at a larger chassis and higher-wattage platform.

Highlights

  • 20-core Intel Core Ultra 7 265K powers heavy rendering and AI workloads
  • 128 GB DDR5 memory handles large datasets and multitasking with ease
  • 1 TB Samsung 990 PRO NVMe SSD delivers 7450 MB/s read and 6900 MB/s write speeds
  • Nvidia GeForce RTX 5070 12 GB GPU accelerates creative and gaming performance
  • 240 mm liquid cooler keeps the CPU quiet under sustained loads

Specifications

Release Year2026
TypeBusiness Desktops & Workstations
Form FactorDesktop
AI FeaturesAI Ready
UsageWork / Business
ColorBlack
Cooling SystemLiquid Cooling
Operating SystemWindows 11 Pro
Windows 11Ready
CPU TypeIntel Core Ultra 7
CPU NameIntel Core Ultra 7 265K
CPU Socket TypeLGA 1700
GPU/VGA TypeGeForce RTX 5070
Memory Capacity128GB DDR5
Memory Slots (Available/Total)4 total
Maximum Memory Supported192 GB
SSD1TB NVMe
HDDNo
Optical Drive TypeNo
Screen SizeNo Screen
Audio ChipsetIntegrated
Audio Channels7.1 channels
LAN ChipsetIntegrated
LAN Speed2.5Gbps
WLAN802.11be Wireless LAN
WiFi GenerationWi-Fi 7
BluetoothBluetooth 5.4
RJ451 port

Questions about this item

Does the Corsair 4000D case include all cables and a Windows licence, or must I buy any accessory separately?

The system ships fully assembled with Windows 11 Pro pre-installed, a 750 W 80 PLUS Bronze PSU, all internal cables fitted and a 240 mm liquid CPU cooler; no extra parts are required to start working.

The spec lists 128 GB DDR5 — is that the maximum or can I expand later?

Four DDR5 slots are populated for 128 GB total; the Z890 motherboard supports up to 192 GB, so two additional modules can be added later if needed.

What does the Samsung 990 PRO 7450 MB/s read speed mean for everyday loading?

The PCIe 4.0 x4 drive delivers up to 7450 MB/s sequential read and 6900 MB/s write, cutting game level loads and large project opens to a few seconds.

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