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HP Z420
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HP Z420 6 Core Intel Xeon E5 3.5GHz 8GB 1TB HDD

6 Intel Xeon E5 3.5GHz 8GB Jul 2014
Processor Cores Processor Family Processor Frequency Internal Memory Release Date
Performance you want. Value you need. The HP Z420 gives you professional expandability in an accessible tool-free mini-tower form factor all at a great price. With up to 8 discrete processing... More
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The HP Z420 Workstation Unboxing and Guided Tour
Latest HP Z420 Workstation Xeon E5-1620 3.6GHz 8GB RAM 500GB HDD Overview
[] HP Z420 Workstation review
Review  HP Workstation Z420

5 Reasons For

HP PCs Have Good Reviews

We calculated the average ratings for all HP PCs and also specifically for HP many processor cores PCs and found that in both cases HP had good ratings compared to other manufacturers.

Fairly Fast Processor Frequency

The slowest processor frequency of personal computers of this age and spec is 1.6GHz, the fastest is 3.7GHz, and the average processor frequency is 2.9GHz. At 3.5 gigahertz, the HP Z420 has a quite fast processor frequency compared to most of the other comparable spec computers that have been around for around the same time as the Z420.

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Quite Big Total Storage Capacity

At 1,000 gigabyte, the HP Z420 has a fairly big total storage capacity compared to most of the other computers of this age and spec. The average total storage capacity of PCs of a similar age and type to the Z420 is 760GB.

If this desktop computer total storage capacity is too small for you then you might also want to look at the Lenovo P700[plb_2552850_price] (2TB).

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Quite Fast Processor Boost Frequency

With a processor boost frequency of 3.9 gigahertz, the HP Z420 has one of the faster processor boost frequencys amongst many processor cores PCs of this age. The processor boost frequencys of many processor cores PCs that came out around the same time as the Z420 range from 2.5GHz to 4GHz, and the average processor boost frequency is 3.5GHz.

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Has One Memory Slots

The number of memory slots found on the HP Z420 is more than most many processor cores PCs that have been available for more than two years. The most commonly found memory slots is 4x DIMM, but this memory slots is not found on this HP personal computer. The memory slotss 8x DIMM are also found on this computer.

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3 Reasons Against

Only HDD Storage Media

The HP Z420 has a faster storage speed than most many processor cores PCs that were launched around the same time as it. This desktop computer has an HDD storage media, whereas most computers that are a comparable age to it have a Flash storage media. A Hard Disk Drive (HDD) is the traditional storage method for computers. A HDD stores the information on magnetic disks. HDD drives are cheap, but they are slower than Flash and SSD bases storage systems.

An HDD storage media is actually the worst storage speed across all computers of a comparable spec and age to the Z420.

The best storage speed amongst comparable types of desktop computer is SSD.

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Very Small Internal Memory

With an internal memory of only 8 gigabytes, the HP Z420 has a fairly small internal memory compared to most of the other many processor cores PCs that were launched more than two years ago. The internal memorys of computers of a comparable type and age to the Z420 range from 4GB to 64GB, and the average internal memory is 24GB.

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Very Small Processor Cache

At only 12 megabytes, the HP Z420 has a fairly small processor cache compared to most of the other desktop computers of this type and age. Across all the computers of this spec and age the processor caches range from 12MB to 30MB.

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2 Other reasons to consider the HP Z420

Released Over Two Years Ago

This many processor cores desktop computer was released over two years ago.

Average Hard Drive Capacity

At 1,000 gigabyte, the HP Z420 has a fairly average hard drive capacity compared to most of the other PCs that are a comparable age to the Z420.

If you want a bigger hard drive capacity then you might want to consider the Lenovo P700[plb_2552850_price] (2TB).

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Processor Cores
Processor Family
Processor Frequency
PCI Express Slots Version
Processor Threads
Processor Cache
Processor Socket
Processor Boost Frequency
Processor Model
ECC Supported by Processor
Memory Channels Supported by Processor
Memory Bandwidth Supported by Processor (max)
Memory Clock Speeds Supported by Processor
Memory Types Supported by Processor
Maximum Internal Memory Supported by Processor
Processor Series
Maximum Number of PCI Express Lanes
Processor Operating Modes
PCI Express Configurations
Processor Codename
Processor Lithography
Thermal Design Power (TDP)
Bus Type
Processor Cache Type
Number of Processors Installed
Internal Memory
Memory Clock Speed
Memory Slots
Memory Layout (slots X Size)
Internal Memory Type
Total Storage Capacity
Storage Media
Hard Drive Capacity
Hard Drive Speed
Hard Drive Interface
Number of Hard Drives Installed
Card Reader Integrated
Optical Drive
Optical Drives Quantity
Optical Drive Type
Operating System Installed
Recovery Operating System
Operating System Architecture
Ethernet LAN
Ports & Interfaces
Firewire (IEEE 1394) Ports
Headphone Outputs
Microphone in
Ethernet LAN (RJ-45) Ports
PS/2 Ports Quantity
DVI Port
USB 2.0 Ports Quantity
USB 3.0 (3.1 Gen 1) Type-A Ports Quantity
Expansion Slots
PCI Slots
PCI Express X16 Slots
PCI Express X8 Slots
PCI Express X4 Slots
Chassis Type
Colour of Product
Water Cooling System
Motherboard Chipset
Product Type
Processor Special Features
Intel® Identity Protection Technology (Intel® IPT)
Intel® Hyper Threading Technology (Intel® HT Technology)
Intel® Turbo Boost Technology
Intel® VPro™ Technology
Intel 64
Enhanced Intel SpeedStep Technology
Intel® AES New Instructions (Intel® AES-NI)
Idle States
Thermal Monitoring Technologies
Execute Disable Bit
Intel Trusted Execution Technology
Intel VT-X With Extended Page Tables (EPT)
Intel Virtualization Technology (VT-X)
Supported Instruction Sets
Intel Enhanced Halt State
Intel Virtualization Technology for Directed I/O (VT-D)
Processor Package Size
CPU Configuration (max)
Intel Demand Based Switching
Intel® Smart Cache
Intel Secure Key Technology Version
Processor ARK ID
Power Supply
Weight & Dimensions
Packaging Content
Mouse Included
Display Included
Keyboard Supplied
Other Features
Intel® Virtualization Technology (Intel® VT)

Expert Reviews

20 June 2013

The HP Z420 combines a quad-core Intel Xeon processor with an Nvidia Quadro graphics to give you a powerhouse system that can grow along with your company...

HP's mid-range workstation is an exemplary if somewhat plain vanilla example of the category, solidly built and a speedy performer...

18 June 2013

The HP Z420 is a powerful, expandable workstation. It combines the power of a quad-core Intel Xeon processor with an Nvidia Quadro graphics to give you a powerhouse system that can grow along with...

22 May 2012

HP has done a great job of filling this workstation with great components, but still keeping the price low. If you are looking for workstation for your office then I recommend you look at the HP Z...

21 May 2012

Recently we had a chance to review Dell's Precision T3600, and we found it impressive. A company that seemed content to be an also-ran in the enterprise desktop space reinvigorated itself with... Read more…

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User Reviews

Reviewed 2 December 2015 by Ed
Ed would recommend the HP Workstation Z420 (Verified Purchase)

Use product for assembling, burning, and labeling CDs, DVDs, and BDs. Use also for modeling (electronics). Workstation is expandable -- I'll at least 32gig of memory. Used HP for 18 years, only... Read more…

Easy To Set Up
Powerful For The Price
Affordable. Even though this is last year's model, the price point for a low-to-mid Xeon makes this an excellent bargain. It's still faster, spec wise, than most high end 7's regardless
Case is in a class of its own. 100 Screwless. Comes with ALL parts you'll need to max out the hard drive and optical bays. Very easy to get at everything. Add the included 600 watt PS and this case wa
Graphics Card. The graphics card with this system is NOT a gaming card. It is a high end workstation graphics card. Yes it will play some games, it is more geared for media (audiovideo) editing, not g
No eSata. No eSata is included with this model, however, you can buy an add on (from HP direct) that will give you eSata. However, it does not support hotplug (as it just connects to the internal Sata
USB 3 ports. I really wish HP gave me some more USB 3 ports, especially with the lack of built-in eSata, if I want to add even MORE storage, two in the rear just isn't enough. (there are two in front
HP BIOS. I was surprised to see that HP uses its stock business line BIOS on such a high end workstation. And as always (to me), HP BIOS leaves alot to be desired. This machine is no exception. I'm ma
RAID is Windows only. There's no ROM based utility, the RAID has to be configured within Windows using the Intel Rapid Storage Technology software. Not a big deal, I'm using Windows anyways, and the R
Reviewed 1 September 2015 by Tom
Tom would recommend the HP Workstation Z420 (Verified Purchase)

This product, customized by B&H to my specifications is proving to be an incredibly good performing, largr internal storage capacity, fast computer. I am using this machine to process,store and... Read more…

Reviewed 18 January 2015 by Kris H.
(Verified Purchase)

I bought this to replace my ailing 7 year old Core2Duo and boy what an upgrade. My desktop at home has now turned into a quasi server, so I wanted to make sure I could add enough internal storage,... Read more…

Brochures and Manuals

+- Manufacturer's Description

Product Identifiers

Manufacturer Part Numbers hp wm641, hp wm641e, hp wm641et, hp p231409, hp p231415, hp e51650v2, hp p231409p, hp p231415p
Barcodes 00888182198599, 00888182418505

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