Lenovo ThinkStation P620 Threadripper 4GHz 192GB 12TB A2000 12GB hard drive adapter

ThinkStation P620 workstation

The Lenovo ThinkStation P620 is a tower workstation built for CAD, 3D rendering, engineering and creative production workloads. It ships with 192GB of DDR4 ECC memory and a 1000W power supply for component headroom. Windows 11 Pro is pre-installed for professional security and remote management. The system targets users who need certified stability in demanding professional applications.

Threadripper PRO 3945WX upgrade path

The AMD Ryzen Threadripper PRO 3945WX delivers 12 cores and 24 threads at 4.0GHz base and 4.30GHz boost frequencies. This configuration replaces older single-socket workstations when multi-threaded rendering or simulation becomes the bottleneck. The jump is worth it when project complexity exceeds the memory or core limits of mainstream desktop platforms. Buyers who need more than 1TB of total system memory or dual-socket scaling should evaluate larger platforms.

PCIe Gen 4 expansion constraints

The platform provides two onboard PCIe Gen 4 NVMe M.2 slots and additional PCIe Gen 4 expansion slots for GPU, networking and storage add-in cards. Total lane allocation is shared between the CPU and chipset, so populating multiple high-bandwidth devices can reduce available bandwidth per slot. The 1000W power supply sets a practical ceiling for combined GPU and add-in card power draw. Builders who require more than two internal NVMe drives without add-in cards cannot use the onboard connectors alone.