Adamant Custom
Adamant Custom 12-Core Liquid Cooled Editing Modelling AI Learning Workstation Computer PC AMD Ryzen 9 9900X3D 4.4GHz X870 TUF 32GB DDR5 2TB NVMe GEN4 SSD 10TB HDD 1200W Geforce RTX 5090 32GB
Status: Adamant Custom 12-Core Liquid Cooled Editing…: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.
Bottom line: The Adamant Custom Ryzen 9 9900X3D / RTX 5090 prebuilt has 32GB of graphics memory, 32GB of DDR5 RAM and a 2TB NVMe SSD.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:
Similar: Sentinel Non-RGB RTX 5090 — $10,149.99 on Amazon as of 2026-10-21 16:16 UTC (price may vary).
Similar: Sentinel RTX 5090 — $10,999.99 on Amazon as of 2026-10-21 16:16 UTC (price may vary).
Similar: Cloud Ninjas AI Workstation Designed for Adobe… — $33,924.20 on Amazon as of 2026-10-20 22:15 UTC (price may vary).
Pros & Cons
Pros
- ✓ Pairs a Ryzen 9 9900X3D processor with GeForce RTX 5090 32GB graphics
- ✓ 2TB NVMe SSD for the OS and game library
- ✓ 32GB of DDR5 RAM leaves headroom for gaming alongside streaming or creative apps
Cons
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
SALES TO CALIFORNIA - Please write to us if ordering from California. Our certified laboratory tests and registers all computers in accordance with the laws of California. WARRANTY: 3 Years Labor and Parts, Quality Control, Lifetime Techsupport All configurations are customizable Case: P20 Mid-Tower Tempered Glass E-ATX System Fan: Front 3 x 120mm Front Ports: 2 x USB 3.0, 1 x USB 3.2 Gen 2 Type-C, 2 x Audio Bays: Internal 2 x 3.5"/2.5", 2 x 2.5" Dimensions (DxWxH) : 469 x 220 x 490 mm Power Supply: Toughpower 1200W 80 PLUS Gold Motherboard: X870 TUF Series Memory: 32GB DDR5 High Performance…
SpecPicks Verdict
SpecPicks scored Adamant Custom 12-Core Liquid Cooled Editing Modelling AI Learning… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the workstations & creator desktops category. Adamant Custom's workstations & creator desktops lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for workstations & creator desktops 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- For SALES TO CALIFORNIA — Please write to us. Our certified laboratory tests and registers all computers in accordance with the laws of California.
- CPU 12-Core AMD Ryzen 9 9900X3D 4.4GHz ; 240mm AIO Liquid Cooler
- MB X870 TUF Series ; RAM 32GB DDR5 High Performance Memory
- STORAGE M.2 SSD 2TB NVMe 990 EVO PCIe GEN4 + 10TB HDD
- GPU Geforce RTX 5090 32GB ; PSU Toughpower 1200W 80 PLUS Gold
- OS Windows 11 Pro 64-bit ; Wi-Fi 7 2x2 (802.11be) ; Bluetooth v5.4
Full Specifications
| ASIN | B0G2R3WHBB |
|---|---|
| Brand | Adamant Custom |
| RAM Type | DDR5 RAM |
| CPU Model | Ryzen 9 |
| CPU Speed | 4.4 GHz |
| Cache Size | 64 MB |
| Model Name | F1018404 |
| Model Year | 2025 |
| Item Weight | 30 Pounds |
| Manufacturer | adamant technical services inc |
| Model Number | F1018404 |
| Built-In Media | Water Cooling |
| Cooling Method | Water |
| Item Dimensions | 20 x 10 x 20 inches |
| Power Plug Type | Type A - 2 pin (North American) |
| Processor Brand | AMD |
| Processor Count | 16 |
| Processor Speed | 4.4 GHz |
| Video Processor | NVIDIA |
| CPU Model Number | 100-000001368 |
Performance Data
View gaming FPS, AI inference throughput, and synthetic scores for the NVIDIA GeForce RTX 5090 — the core hardware component in this product. Benchmarks sourced from TechPowerUp, PassMark, and the r/LocalLLaMA community.
Related benchmarks: AMD Ryzen 9 9900X3D benchmarks
Which local LLMs fit in 32 GB?
32 GB holds a 30–35B model at Q4 with a long context window; a 70B model runs only with layers resident in system RAM.
- ✅ 7–9B models (Llama 3.1 8B, Qwen 3 8B) — fits at Q4
- ✅ 12–14B models (Qwen 3 14B, Phi-4) — fits at Q4
- ✅ 20–27B models (Gemma 3 27B, Mistral Small) — fits at Q4
- ✅ 30–35B models (Qwen 3 32B, QwQ 32B) — fits at Q4
- ❌ 70B models (Llama 3.3 70B, Qwen 2.5 72B) — needs 48 GB+
Across 6 community runs from 4 sources, the NVIDIA GeForce RTX 5090 generates a median 185.9 tok/s on 7–9B models at Q4 (per Hardware Corner).
Ready to buy?
Amazon shows no buyable offer for Adamant Custom 12-Core Liquid Cooled Editing… at the last check. A similar in-stock product is Sentinel Non-RGB RTX 5090. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
Related Workstations & Creator Desktops
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best 1440p Gaming GPUs in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- How to Build a Windows 98 Retro PC in 2026
More reviews from the SpecPicks archive
Browse all reviews →- 8BitDo Pro 2 vs GameSir G7 SE: Best PC Emulation Controller
- Best GPU for Llama 3.1 405B (2026)
- RTX 5090 vs RX 7900 XTX — does AMD still matter?
- Best Budget NVMe SSD for a Big Steam Library: WD Blue SN550 vs SATA
- DeepSeek 4 Flash on 128GB MacBook: Local Inference Throughput Reality Check
- After the Mythos Cyber-Ops Report, Why Run AI on an Air-Gapped Local Box
- Building a 2002 Windows XP Gaming Rig: GeForce 4 Ti, Sound BlasterX G6, CompactFlash Boot
- Using a Raspberry Pi 5 with AI to Recover Lost Windows 98 INF Files (2026)
- Best Plug-and-Play Retro Gaming Consoles in 2026: 5 Picks
- BOSGAME VTA-439: A Linux-Friendly Ryzen AI Mini PC
- Free Retro Game Emulator Online: 2026 Browser Guide
- Best DualSense and PC-Compatible Controller (2026)
- RTX 3060 12GB vs RTX 4090 for Local LLMs (2026): Is 2x VRAM Worth the Price Jump?
- Logitech Gaming Mouse Deals Hit 47% Off for Prime Day 2026
- 180Hz 1440p Gaming Monitors Hit Entry-Level Pricing
- Open-WebUI on an RTX 3060: A Self-Hosted ChatGPT in 2026
- Raspberry Pi 4 8GB in 2026: Still the Right Pick for Retro Emulation and Home Servers?
- Best Budget 4K Gaming Monitor for an RTX 3060: KOORUI vs Samsung Odyssey
- AMD Ryzen 9 9950X3D2 on Linux vs Windows 11: Why the Penguin Wins
- How to Run a Public Website on a $10 ESP32 Without Servers
- Does Dual-Channel RAM Matter for Local LLM Inference?
- Best CPU Cooler for the Ryzen 7 5800X in 2026
- Best Single-Board Computer Kits for Beginners (2026)
- 1440p High-Refresh vs 4K for Gaming in 2026: ASUS TUF 27" QHD vs SANSUI/KOORUI 4K
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090