HP Z640 Workstation
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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.
Power up

Power up
Experience massive workstation power with support for 145W processors powering up to 36 cores in a dual Intel® Xeon® processor configuration.[3] 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[1] provides incredible expansion in a small footprint. With up to 8 memory DIMMs, up to 4 internal hard drives, optional Thunderbolt™ 2,[4] and the HP Z Turbo Drive, you get storage, performance, and the freedom to create.

Build the perfect workstation for your needs. The HP Z640 Workstation featuring Windows 8.1[1] provides incredible expansion in a small footprint. With up to 8 memory DIMMs, up to 4 internal hard drives, optional Thunderbolt™ 2,[4] and the HP Z Turbo Drive, you get storage, performance, and the freedom to create.
Experience the quiet

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.
Return & exchange information
HP.com will accept returns or exchanges for this product up to 30 days after delivery.
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Product specifications
Operating system
Windows 7 Professional 64 (available through downgrade rights from Windows 8.1 Pro 64)
Processor
Intel® Xeon® E5-2620 v3 (2.4 GHz, 15 MB cache, 6 cores)
Graphics
Not Included
Memory
16 GB 2133 MHz DDR4 ECC Registered RAM (2 x 8 GB)
Memory slots
4 DIMM (with 1 processor) and 8 DIMM (with 2 processors)
Hard drive
1 TB 7200 rpm SATA
Optical drive
Slim SATA SuperMulti DVD writer
Ports
4 USB 3.0; 1 headset; 1 microphone
1 USB 2.0; 1 USB 3.0
4 USB 3.0; 2 USB 2.0; 2 PS/2; 1 RJ-45; 1 audio line in; 1 audio line out
Internal
Back
Front
Expansion slots
2 PCIe Gen3 x16; 1 PCIe Gen3 x8 (open-ended); 1 PCIe Gen2 x4 (open-ended); 1 PCIe Gen2 x1 (open-ended); 1 PCI
Audio
Integrated Realtek HD ALC221
Dimensions (W X D X H)
6.75 x 18.3 x 17.5 in
Weight
33.1 lb
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.
Return & exchange information
HP.com will accept returns or exchanges for this product up to 30 days after delivery.
Top match for your HP Z640 Workstation
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HP DisplayPort To VGA Adapter
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- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
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HP Ultraslim Keyed Cable Lock
- Designed to fit industry standard lock slot on most HP notebooks
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HP USB Graphics Adapter
- The super-compact HP USB Graphics Adapter enables connection of up to six simultaneous displays (one per adapter) to help you boost productivity and multi-task across several open applications.
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
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HP Serial Port Adapter
- The Second Serial Port enables customers to add a second serial connector to their desktop. The additional serial port supports a wide variety of devices that have a serial connector. The serial card also comes shipped with a full height bracket.
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
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Browse Accessories
Browse Accessories
HP USB Graphics Adapter
- The super-compact HP USB Graphics Adapter enables connection of up to six simultaneous displays (one per adapter) to help you boost productivity and multi-task across several open applications.
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
HP DisplayPort To VGA Adapter
- Converts the DisplayPort connector on a HP Compaq Business Desktop computer to a VGA port. The adapter has a latching DisplayPort connector on one end that connects to the graphics source and VGA connector on the other for connecting to a VGA monitor cable.
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
HP DisplayPort to DVI-D Adapter
- Converts the DisplayPort connector on a HP Workstation computer to a single link DVI-D port. The adapter has a latching DisplayPort connector on one end and DVI-D connector on the other for connecting to a DVI-D monitor cable.
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
HP DMS-59 to Dual DisplayPort Kit
- Support up to two digital displays with the use of this optional DMS-59 to DisplayPort adapter
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
HP Ultraslim Keyed Cable Lock
- Designed to fit industry standard lock slot on most HP notebooks
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
HP Single Monitor Arm
- The HP Single Monitor Arm is the perfect desk accessory for your work life. Sleek and streamlined, the HP Single Monitor Arm is designed to complement the way you work.
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
HP Serial Port Adapter
- The Second Serial Port enables customers to add a second serial connector to their desktop. The additional serial port supports a wide variety of devices that have a serial connector. The serial card also comes shipped with a full height bracket.
- Product not carried in stock and will have a shipping lead time. Add to Cart for details.
- Free shipping & free returns
- Up to $40 off select Bose speakers with purchase of this PC
- Save $40 instantly
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Product reviews
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