Lenovo ThinkStation P620 Tower Workstation Threadripper 3945WX 128GB 1TB NVMe 2TB HDD RTX A2000 1000W W11 Pro

Professional workstation for CAD and 3D rendering

The Lenovo ThinkStation P620 tower is built for CAD, 3D modeling, rendering, engineering, visualization and creative production. It runs on an AMD Ryzen Threadripper PRO 3945WX processor with 12 cores and 24 threads at a 4.0 GHz base frequency. The system includes 128GB of DDR4 ECC RDIMM memory across 8 slots and an NVIDIA RTX A2000 graphics card.

Sustained multi-core throughput with 1000W headroom

The Threadripper PRO 3945WX maintains its 4.0 GHz base clock across all 12 cores during extended render jobs and simulation workloads. A 1000W power supply delivers stable current for the CPU, GPU, multiple NVMe drives and add-in cards without throttling. Eight-channel DDR4 memory architecture feeds data continuously to keep all 24 threads saturated during long compute sessions.

Tower chassis with tool-less access and eight DIMM

The tower form factor opens without tools for memory, storage and expansion card upgrades. Eight DIMM slots support up to 1TB of DDR4 ECC RDIMM, though populating all channels requires matching modules for stability. Two onboard PCIe Gen 4 NVMe M.2 slots accept additional drives, while multiple PCIe Gen 4 expansion slots allow secondary GPUs or networking cards; cable routing space is generous but front-panel USB headers sit near the graphics card, so longer cards can block them.