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Lenovo ThinkStation P620 tower workstation in matte black finish

Lenovo

Lenovo ThinkStation P620 Threadripper PRO 3945WX 4.0GHz 256GB RTX A4000 1TB NVMe 2x2TB SATA desktop PC

SKU CH-87R7-M62FX

Professional workstation with 12-core Threadripper PRO processor, 256GB DDR4 ECC memory, RTX A4000 graphics and 5TB total SSD storage for CAD and 3D rendering

  • TypeBusiness Desktops & Workstations
  • Form FactorTower
  • UsageWorkstation
  • Memory256GB
  • Storage1x 1TB SSD M.2, 2x 2TB SSD
  • GraphicsRTX A4000
  • Threadripper PRO 3945WX 12-core CPU powers heavy rendering and simulation workloads
  • 256GB DDR4 ECC memory handles massive datasets and virtual machines smoothly
  • RTX A4000 professional GPU accelerates CAD, 3D visualization and GPU-enabled creative apps
  • 1TB NVMe plus 2x 2TB SATA SSDs deliver fast boot and ample project storage
  • 1000W supply supports multi-GPU expansion and future storage upgrades

Professional CAD Workstation

The Lenovo ThinkStation P620 is a tower workstation built for CAD, 3D modelling, rendering and engineering workflows. 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 256 GB of DDR4 ECC memory and an NVIDIA RTX A4000 graphics card for GPU-accelerated professional applications.

Straightforward Tower Deployment

The tower form factor fits standard rack or desk spaces and uses a 1000 W power supply to support the installed components. Windows 11 Pro is pre-installed and ready for immediate domain joining or remote desktop setup. The 8-channel memory architecture uses 8 DIMM slots; verifying that all slots are populated correctly avoids boot issues. Two built-in PCIe Gen 4 NVMe M.2 slots allow storage expansion without adapter cards.

Ideal for Multi-threaded Production

This configuration suits professionals who need high core counts, large ECC memory capacity and certified drivers for CAD, simulation and content creation. Buyers who want more storage than the 1 TB NVMe plus 2x 2 TB SATA array should plan additional drives. Teams requiring a different GPU tier or a smaller chassis should evaluate alternative workstation models.

Highlights

  • Threadripper PRO 3945WX 12-core CPU powers heavy rendering and simulation workloads
  • 256GB DDR4 ECC memory handles massive datasets and virtual machines smoothly
  • RTX A4000 professional GPU accelerates CAD, 3D visualization and GPU-enabled creative apps
  • 1TB NVMe plus 2x 2TB SATA SSDs deliver fast boot and ample project storage
  • 1000W supply supports multi-GPU expansion and future storage upgrades

Specifications

BrandLenovo
SeriesThinkStation
ModelP620
TypeBusiness Desktops & Workstations
Form FactorTower
UsageWorkstation
Memory256GB
Storage1x 1TB SSD M.2, 2x 2TB SSD
GraphicsRTX A4000
Power Supply1000W
Operating SystemWindows 11 Pro
Windows 11Ready
CPU Base Frequency4.00GHz
Graphics CardRTX A4000
Memory Capacity256GB
Memory Slot (Total)8
Maximum Memory Supported1TB
SSD5TB
HDDNo
Front USB4
Front Audio Ports1
Rear USB6
RJ451 port
Rear Audio Ports3 ports

Questions about this item

How can I confirm the Threadripper PRO 3945WX is running at its 4.0 GHz base and 4.30 GHz boost after setup?

Open Task Manager or HWMonitor to verify the CPU reports 12 cores, 24 threads, 4.0 GHz base clock and 4.30 GHz boost under load.

What accessories are included and which must be purchased separately?

The workstation includes power cord, keyboard and mouse; monitors, specialised 3D mice or additional PCIe cards are not supplied.

Which memory configuration suits large assemblies — the installed 256 GB or the maximum 1 TB?

256 GB across 8 DDR4 ECC RDIMM slots handles most CAD projects; upgrade toward 1 TB only if you run massive simulations or many virtual machines.

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