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Lenovo ThinkStation P620 tower workstation with side panel removed showing internal components

Lenovo

Lenovo ThinkStation P620 Threadripper 3945WX 4.0GHz 48GB 4TB HDD RTX A2000 12GB hard drive adapter

SKU CH-NJ0X-S92XN

Professional workstation with 12-core Threadripper PRO 3945WX, 48GB memory, 2TB NVMe plus 4TB HDD storage, and RTX A2000 graphics for CAD and rendering

  • TypeBusiness Desktops & Workstations
  • Form FactorTower
  • UsageWorkstation
  • Memory48GB
  • Storage1x 4TB HDD, 1x 2TB SSD M.2
  • GraphicsRTX A2000
  • AMD Threadripper PRO 3945WX 12-core 4.0 GHz base accelerates multi-threaded rendering and simulation
  • 48 GB DDR4 ECC memory handles large assemblies and virtual machines with room to expand
  • 2 TB NVMe plus 4 TB 7200 rpm HDD delivers fast boot and ample project storage
  • NVIDIA RTX A2000 12 GB GPU speeds CAD viewport and GPU-accelerated workflows
  • 1000 W power supply supports future GPU and storage upgrades in tower chassis

Professional CAD Workstation

The Lenovo ThinkStation P620 tower is built for CAD, 3D modelling, rendering and engineering workflows. An AMD Ryzen Threadripper PRO 3945WX with 12 cores and 24 threads runs at a 4.0 GHz base frequency up to 4.30 GHz boost. Installed 48 GB DDR4 ECC memory across 8 slots handles large project files and virtual machines. Professional NVIDIA RTX A2000 graphics with 12 GB accelerate GPU-enabled creative applications.

1000W Power Thermal Headroom

A 1000 W power supply delivers stable current for the Threadripper processor, RTX A2000 card and storage array under sustained loads. The tower chassis provides airflow paths for the CPU, GPU and dual-drive storage configuration. Windows 11 Pro manages modern power states and remote desktop features for professional environments. The system supports PCIe Gen 4 expansion cards for additional GPU, networking and NVMe scaling.

Dual-Drive Storage Flexibility

One 2 TB NVMe M.2 SSD provides responsive boot and application performance. One 4 TB HDD at 7200 rpm adds capacity for project files, media libraries and backups. Two built-in PCIe Gen 4 NVMe M.2 slots allow further high-speed storage upgrades without add-in cards. Eight total DIMM slots support up to 1 TB maximum memory for future expansion needs.

Highlights

  • AMD Threadripper PRO 3945WX 12-core 4.0 GHz base accelerates multi-threaded rendering and simulation
  • 48 GB DDR4 ECC memory handles large assemblies and virtual machines with room to expand
  • 2 TB NVMe plus 4 TB 7200 rpm HDD delivers fast boot and ample project storage
  • NVIDIA RTX A2000 12 GB GPU speeds CAD viewport and GPU-accelerated workflows
  • 1000 W power supply supports future GPU and storage upgrades in tower chassis

Specifications

BrandLenovo
SeriesThinkStation
ModelP620
TypeBusiness Desktops & Workstations
Form FactorTower
UsageWorkstation
Memory48GB
Storage1x 4TB HDD, 1x 2TB SSD M.2
GraphicsRTX A2000
Power Supply1000W
Operating SystemWindows 11 Pro
Windows 11Ready
CPU Base Frequency4.00GHz
Graphics CardRTX A2000
Memory Capacity48GB
Memory Slot (Total)8
Maximum Memory Supported1TB
SSD2TB
HDD4TB
HDD RPM7200rpm
Front USB4
Front Audio Ports1
Video Ports4 x Mini DisplayPort
Rear USB6
RJ451 port
Rear Audio Ports3 ports

Questions about this item

How do I add the RTX A2000 to this ThinkStation P620, and what step is often missed?

Open the tower, seat the RTX A2000 in a PCIe Gen 4 slot, fasten the bracket, and attach the 8-pin power lead from the 1000W supply; the step often missed is connecting that power cable before closing the case.

What part of the 4TB HDD will need replacement first under heavy use?

The 7200rpm mechanical drive has moving platters and heads that wear over time, so the HDD itself is the component most likely to require replacement before the solid-state storage or memory.

Which limit appears first when the Threadripper PRO 3945WX runs at full load for long periods?

The 1000W power supply and system cooling define the sustained-power ceiling; the 12-core CPU will throttle once the combined draw of processor, RTX A2000, memory, and drives reaches that thermal and electrical boundary.

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