Adamant Custom Ryzen 9 9900X3D RTX 5090 128GB DDR5 4TB NVMe gaming PC

Built for modelling and AI workloads

This workstation pairs a 12-core AMD Ryzen 9 9900X3D processor with 128GB of DDR5 memory and an Nvidia GeForce RTX 5090 graphics card. It targets professionals who need high thread counts and large VRAM for rendering, simulation or machine-learning training. A 4TB Samsung 990 PRO NVMe drive provides fast local storage for active projects.

PCIe 4.0 x4 and x16 lane limits

The motherboard connects the primary M.2 SSD through a PCIe 4.0 x4 interface, capping sequential throughput at the drive’s rated 7450 MB/s read and 6900 MB/s write. The GPU occupies a full PCIe x16 slot, while rear I/O includes USB4 ports at 40Gbps and multiple 10Gbps and 5Gbps connections. Total installable memory tops out at 192GB across four slots.

32GB VRAM on the RTX 5090

The graphics card supplies 32GB of video memory, which is the decisive figure for fitting large models or high-resolution textures entirely on the GPU. If a workload exceeds that capacity, data must spill to system RAM over the PCIe bus, adding latency. Buyers whose datasets fit within 32GB will see the full benefit; those who need more cannot expand VRAM on this card.