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Lenovo ThinkStation P620 tower workstation in black finish

Lenovo

Lenovo ThinkStation P620 Threadripper PRO 3945WX 4.0GHz 48GB RTX 4000 2TB NVMe 4TB HDD desktop PC

SKU CH-B3Z5-ZK1ZP

A 12-core Threadripper PRO workstation with 48GB ECC memory, RTX 4000 graphics and mixed NVMe plus HDD storage for CAD and rendering

  • TypeBusiness Desktops & Workstations
  • Form FactorTower
  • UsageWorkstation
  • Memory48GB
  • Storage1x 4TB HDD, 1x 2TB SSD M.2
  • GraphicsRTX 4000
  • Threadripper PRO 3945WX delivers 12 cores and 24 threads for heavy multi-core workloads
  • 48GB DDR4 ECC memory handles large project files and virtual machines smoothly
  • 2TB NVMe SSD plus 4TB 7200rpm HDD gives fast boot and deep archival capacity
  • NVIDIA RTX 4000 GPU accelerates CAD, rendering and GPU-enabled creative applications
  • 1000W power supply supports demanding components and future expansion cards

Professional CAD Workstation

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 48GB of DDR4 ECC memory across 8 DIMM slots and an NVIDIA RTX 4000 graphics card. Windows 11 Pro is installed for professional security and remote desktop features.

Thermals Noise Power

A 1000W power supply delivers stable energy to the Threadripper PRO CPU, RTX 4000 GPU, 2TB NVMe SSD and 4TB 7200rpm HDD during typical professional workloads. The tower form factor provides airflow for the processor, graphics card and storage devices under normal office or studio conditions. Windows 11 Pro power management balances performance and acoustics for daily CAD, modeling and multitasking sessions.

Sustained Load Behaviour

Under continuous rendering, simulation or engineering compute tasks the 12-core Threadripper PRO 3945WX can boost toward 4.30 GHz while the RTX 4000 maintains GPU acceleration for visualization and GPU-enabled applications. The 1000W unit supports prolonged multi-component draw and the 8-channel DDR4 architecture sustains memory bandwidth for large project files. Builders who need a second graphics card or additional NVMe storage beyond the two onboard M.2 slots should verify expansion capacity before purchase.

Highlights

  • Threadripper PRO 3945WX delivers 12 cores and 24 threads for heavy multi-core workloads
  • 48GB DDR4 ECC memory handles large project files and virtual machines smoothly
  • 2TB NVMe SSD plus 4TB 7200rpm HDD gives fast boot and deep archival capacity
  • NVIDIA RTX 4000 GPU accelerates CAD, rendering and GPU-enabled creative applications
  • 1000W power supply supports demanding components and future expansion cards

Specifications

BrandLenovo
SeriesThinkStation
ModelP620
TypeBusiness Desktops & Workstations
Form FactorTower
UsageWorkstation
Memory48GB
Storage1x 4TB HDD, 1x 2TB SSD M.2
GraphicsRTX 4000
Power Supply1000W
Operating SystemWindows 11 Pro
Windows 11Ready
CPU Base Frequency4.00GHz
Graphics CardRTX 4000
Memory Capacity48GB
Memory Slot (Total)8
Maximum Memory Supported1TB
SSD2TB
HDD4TB
HDD RPM7200rpm
Front USB4
Front Audio Ports1
Video Ports3x DisplayPort 1.4a, 1x USB Type-C
Rear USB6
RJ451 port
Rear Audio Ports3 ports

Questions about this item

How do I install the AMD Ryzen Threadripper PRO 3945WX CPU into the ThinkStation P620, and what step is often missed?

The processor is already installed in the workstation; no CPU installation is required.

What maintenance or replacement will the 4TB HDD and 2TB NVMe storage need later?

The 7200rpm HDD may need replacement after years of continuous operation; the NVMe SSD has no moving parts and typically lasts the system's life.

What limit appears first on the RTX 4000 during sustained rendering workloads?

The RTX 4000 graphics card will hit its thermal or power envelope before the 1000W supply or 48GB memory become bottlenecks.

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