Z640 Workstation

Redefine versatility and flexibility. Expand your capabilities with HP’s Z640 Workstation offering powerful performance, whisper-quiet computing, and tool-less access in compact design.

  • Windows 7 Professional 64 (available through downgrade rights from Windows 10 Pro 64)

Power up

Experience massive workstation power with support for 145W processors powering up to 36 cores in a dual Intel® Xeon® processor configuration. The HP Z640 Workstation uses Z DNA to provide a high-end workstation experience.

Versatility redefined

Build the perfect workstation for your needs. The HP Z640 Workstation featuring Windows 8.1 provides incredible expansion in a small footprint. With up to 8 memory DIMMs, up to 4 internal hard drives, optional Thunderbolt™ 2, and the HP Z Turbo Drive, you get storage, performance, and the freedom to create.

Experience the quiet

Concentrate on your work using a workstation that is whisper quiet. When every inch, watt, and decibel makes a difference, count on the HP Z640 Workstation.


Primed to perform

  • Achieve the performance you need with the ability to support two next generation Intel® Xeon® processors for up to 36 total processor cores in one system.
See everything clearly
  • Take productivity up a notch with the ability to do more thanks to NVIDIA® professional graphics cards in 2D or 3D.

Graphics pro

  • Get serious about graphics and reach peak productivity with access to a breadth of AMD professional graphics from entry to high-end 3D.

High-power ports

  • Maximize your time and increase your capabilities with USB and SATA ports, plus lightning-fast data transfers using optional Thunderbolt™ 2 technology.

Conveniently compact

  • A tool-free chassis boasts low acoustics, single integrated Gb Ethernet, a front and rear handle, rear ledge and is 4U rack mountable—all in a compact design.

Set a new performance curve for your HP Z640

  • Reduce boot up, calculation, and graphics response and revolutionize how your HP Z640 handles large files with the HP Z Turbo Drive, a remarkably fast and innovative storage solution.

See every angle

  • Take multitasking to a new level with the ability to easily connect and work on up to eight displays.

Your personal system engineer

  • Optimize this HP Z640 for peak performance. HP Performance Advisor configures your system with updated settings and drivers to help maximize performance.

Device management made easy

  • Each HP Z640 Workstation works with HP Client Management Solutions, and optional LANDesk to deploy, manage, and secure your PC.
  • Windows 7 Professional 64 (available through downgrade rights from Windows 10 Pro 64)

Manufacturer Part Number
Full Product Specifications


  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
  • These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
  • These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Operating system:

  • Windows 7 Professional 64 (available through downgrade rights from Windows 10 Pro 64) (This system is preinstalled with Windows 7 Professional software and also comes with a license and media for Windows 10 Pro software. You may only use one version of the Windows software at a time. Switching between versions will require you to uninstall one version and install the other version. You must back up all data (files, photos, etc.) before uninstalling and installing operating systems to avoid loss of your data.)
Processor family :
  • Intel® Xeon® E5 2600 v4 processor
Processor :
  • Intel® Xeon® E5-2620 v4 (2.1 GHz, 20 MB cache, 8 cores, Intel® vPro™)
Number of processors :
  • 2
Chipset :
  • Intel® C612
Environmental :
  • Low halogen
Form factor :
  • Tower
Memory :

Memory, standard:
  • 8 GB DDR4-2400 registered SDRAM (2 x 4 GB)
Memory slots :
  • 4 DIMM (with 1 processor) and 8 DIMM (with 2 processors)
Storage :

Internal drive bays :
  • Two 3.5"
External drive bays :
  • Two 5.25"; One slim ODD
Internal drive:
  • HP Z Turbo Drive 256 GB PCIe SSD
Additional storage:
  • 15-in-1 media card reader (optional); HP DX115 Removable HDD Frame/Carrier (optional) Storage controller : Integrated SATA 6.0 Gb/s; LSI 9217-4i4e 8-port SAS 6.0 Gb/s RAID (optional); LSI MegaRAID® 9270-8i SAS 6.0 Gb/s ROC RAID Card and iBBU09 Battery Backup Unit (optional); Factory integrated RAID available for SATA/SAS drives (RAID 0, 0 Data, 1, 5, and 10); Factory integrated RAID available for PCIe SSDs (RAID 0 Data)
Optical drive:
  • Slim SATA SuperMulti DVD writer

Display and graphics :

Compatible displays :
  • All HP Z Displays and HP DreamColor Displays are supported. For more information see www.hp.com/go/zdisplays.

Communications :

Audio :
  • Integrated Realtek HD ALC221

Power and operating requirements :

Power :
  • 925 W 90% efficient, active PFC

Dimensions and weight :

Dimensions (W x D x H):

  • 6.75 x 18.3 x 17.5 in (17.5 x 46.48 x 44.45 cm)
  • 33.1 lb (15 kg) (Exact weight depends upon configuration.)
What's included :

Software :
  • Buy Office
  • CyberLink PowerDVD/Power2Go
  • HP Performance Advisor
  • Foxit PhantomPDF Express
  • HP Remote Graphics Software (RGS) 7.2
Keyboard :
  • HP USB Keyboard
Pointing device :
  • HP USB Optical Mouse
Security management :
  • HP Solenoid Hood Lock & Hood Sensor
  • HP Business PC Security Lock Kit
  • TPM 1.2 certified
Warranty :
  • Protected by HP Services, including a standard limited 3 years parts, 3 years labor, and 3 years onsite service (3/3/3) warranty. Certain restrictions and exclusions apply.