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HP Z420
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HP Z420 4 Core Intel Xeon E5 2.8GHz 4GB 500GB HDD

4 Intel Xeon E5 2.8GHz 4GB Mar 2013
Processor Core Processor Family Processor Clock Speed 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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19 Reasons For

Good Brand

Based on 242 expert and owner reviews, HP has good reviews for its desktop computers. HP also has good reviews specifically within its medium processor core personal computers range compared to other manufacturers.

64-Bit Processor Operating Mode

This personal computer supports a 64-bit processor operating mode, which is typical of many desktop computers of this spec and age.

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Quite Big Max Internal Memory Supported Processor

Across all the desktop computers of this type and age the max internal memory supported processors range from 2GB to 770GB, and the average max internal memory supported processor is 88GB. At 375 gigabytes, the HP Z420 has a quite big max internal memory supported processor compared to most of the other medium processor core personal computers that were released more than two years ago.

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Fairly Fast Max Memory Bandwidth Supported Processor

Across all the medium processor core personal computers that came out more than two years ago the max memory bandwidth supported processor range from 10GB/s to 68GB/s, and the average max memory bandwidth supported processor is 30GB/s. At 31.4 gigabytes per second, the HP Z420 has a quite fast max memory bandwidth supported processor compared to most of the other computers that were released more than two years ago.

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3 PCI Express Slots Version

This computer supports a 3 PCI Express slots version, which is typical of many medium processor core personal computers that are a comparable age to it.

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Three 5.25" Bays

The HP Z420 is a three 5.25" bay desktop computer.

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L3 Processor Cache Level

This computer has a L3 processor cache level, which is typical of many computers of this spec and age.

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Two PCI Express X16 Slots

The HP Z420 is a two PCI Express x16 slot PC.

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10/100/1000Base-T(X) Cabling Technology

This desktop computer has a 10/100/1000Base-T(X) cabling technology, which is typical of many similar spec personal computers that were launched more than two years ago.

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Fairly Big Maximum Internal Memory

The maximum internal memory of computers of a similar type and age to the Z420 range from 2GB to 260GB. With a maximum internal memory of 64 gigabytes, the HP Z420 has one of the bigger maximum internal memory amongst comparable spec PCs of this age.

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Quite Big Processor Cache

Across all the PCs of a comparable type and age to the Z420 the processor caches range from 0.51MB to 10MB, and the average processor cache is 6.8MB. At 10 megabytes, the HP Z420 has a fairly big processor cache compared to most of the other medium processor core personal computers that are a comparable age to the Z420.

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Quite Big Maximum Internal Memory

Across all the computers that are a comparable age to the Z420 the maximum internal memory range from 8.1GB to 790GB, and the average maximum internal memory is 96GB. At 384,000 megabytes, the HP Z420 has a quite big maximum internal memory compared to most of the other medium processor core personal computers that were released more than two years ago.

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Two PCI Express X16 (Gen 3.x) Slots

The HP Z420 is a two PCI Express x16 (Gen 3.x) slot computer. Most of the other PCs that have been around for a similar time to the Z420 have between one and two PCI Express x16 (Gen 3.x) slots.

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Fairly Big L3 Cache

At 10 megabytes, the HP Z420 has a quite big L3 cache compared to most of the other medium processor core personal computers that are a comparable age to the Z420. The average L3 cache of medium processor core personal computers that were released more than two years ago is 6.9MB, and the L3 caches range from 2MB to 10MB.

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Has One Memory Slot

The HP Z420 has a greater number of memory slots than most medium processor core personal computers that were released around the same time as it. The most commonly found memory slot is 4x DIMM, but this memory slot is not found on this PC. The memory slots 8x DIMM are also found on this HP personal computer.

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Quite Fast Memory Clock Speed

The HP Z420 has one of the faster memory clock speeds (1,866 megahertz) amongst medium processor core personal computers of this age. The memory clock speeds of comparable spec personal computers that came out around the same time as the Z420 range from 1,000MHz to 2,200MHz.

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Supports One Case Placement

The HP Z420 has a greater number of placements than most personal computers of a similar age and spec to it. This personal computer supports a Vertical case placement, which is the most commonly supported case placement supported by computers of a comparable type and age to the Z420.

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Has One Cable Included

The number of included cables found on the HP Z420 is more than most medium processor core personal computers that have been available for around the same time as it. This HP personal computer has an AC cable included, which is the most frequently found cable included found on medium processor core personal computers that have been available for around the same time as the Z420.

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DVD Super Multi Optical Drive Type

The optical drive type of this computer is DVD Super Multi, which is typical of many medium processor core personal computers that are a similar age to it.

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8 Reasons Against

Quite Slow Memory Clock Speed Supported by Processor

At only 800 megahertz, the HP Z420 has a quite slow memory clock speed supported by processor compared to most of the other computers of this type and age. The average memory clock speed supported by processor of medium processor core personal computers that have been around for a similar time to the Z420 is 1,300MHz, and the memory clock speeds supported by processors range from 800MHz to 2,200MHz.

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Quite Slow Processor Clock Speed

Medium processor core personal computers that came out more than two years ago have processor clock speeds of between 1GHz and 4.1GHz. At only 2.8 gigahertz, the HP Z420 has a quite slow processor clock speed compared to most of the other computers of a similar type and age to the Z420.

Desktop computers with a faster processor clock speed that might also be worth considering include the Fujitsu P420 E85+[plb_2544760_price] (3GHz).

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Only HDD Storage Medium

The storage speed of this PC is HDD, which is typical of many comparable spec computers that have been available for a similar time to it. 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.

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Very Small Internal Memory

The HP Z420 has a quite small internal memory (only 4 gigabytes) compared to most of the other medium processor core personal computers that were launched around the same time as the Z420. Personal computers that are a comparable age to the Z420 have internal memory of between 2GB and 64GB, and the average internal memory is 7.5GB.

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Very Small Hard Drive Capacity

The smallest hard drive capacity of medium processor core personal computers that are a similar age to the Z420 is 320GB and the biggest is 3TB. With a hard drive capacity of only 500 gigabytes, the HP Z420 has one of the smaller hard drive capacity amongst medium processor core personal computers of this age.

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Quite Small Total Storage Capacity

The smallest total storage capacity of PCs of a similar spec and age to the Z420 is 32GB and the biggest is 3TB. With a total storage capacity of only 500 gigabytes, the HP Z420 has one of the smaller total storage capacity amongst similar spec personal computers of this age.

If this medium processor core desktop computer total storage capacity is too small for you then you might also want to look at the Apple Mac Pro[plb_3816853_price] (512GB), or the DELL XPS 8700[plb_2716106_price] (1TB).

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Heavy

The average weight of computers of a similar spec and age to the Z420 is 8.2kg. At 12.5 kilograms, the HP Z420 is quite heavy compared to most of the other similar spec PCs that were released more than two years ago.

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Very Tall

Similar spec PCs that have been available for more than two years have heights of between 19mm and 560mm. When compared to other medium processor core personal computers that were released more than two years ago that we have checked the height of, the HP Z420's height of 447.6 millimeters is one of the tallest.

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1 Other reason to consider the HP Z420

Released Over Two Years Ago

It was over two years ago when this HP personal computer was released.

Specification

Features
Processor
Processor Core
Processor Family
Processor Clock Speed
PCI Express Slots Version
Processor Thread
Processor Cache
Processor Socket
Processor Model
Processor That Supports ECC
Memory Channel Supported Processor
Max Memory Bandwidth Supported Processor
Memory Clock Speed Supported by Processor
Memory Type Supported Processor
Max Internal Memory Supported Processor
Tcase
PCI Express Lane (maximum)
Stepping
Processor Operating Mode
CPU Multiplier (bus/core Ratio)
Processor Codename
Processor Lithography
Thermal Design Power (TDP)
Bus Type
Processor Cache Type
Processor Installed
Ergonomics
Memory
Internal Memory
Error Checking and Correcting (ECC)
Memory Clock Speed
Memory Slot
Maximum Internal Memory
Internal Memory Type
Storage
Total Storage Capacity
Storage Medium
Hard Drive Capacity
Hard Drive Speed
Hard Drive Interface
Hard Drive
Integrated Card Reader
Optical Drive
Optical Drive
Optical Drive Type
Video
Graphics
On-Board Graphics Adapter Model
Operating System/software
Operating System
Operating System Architecture
Networking
Ethernet LAN Data Rate
Ethernet LAN Connection
Ports & Interfaces
Firewire (IEEE 1394) Port
Headphone Out Port
Microphone in Port
Line-In Port
DC-In Jack
Ethernet LAN (RJ-45) Port
PS/2 Port
USB 2.0 Port
USB 3.0 (3.1 Gen 1) Type-A Port
Expansion Slots
PCI Slot
PCI Express X16 Slot
PCI Express X8 Slot
PCI Express X4 Slot
Design
Chassis Type
5.25" Bay
3.5" Bay
Case Colour
Performance
Audio System
Motherboard Chipset
Product Type
Processor Special Features
Intel Anti-Theft Technology
Intel My WiFi Technology
Intel Quick Sync Videotechnology
Intel Hyper-Threading Technology
Intel Turbo Boost Technology
Intel VPro Technology
Intel Wireless Display (WiDi) Technology
Intel 64
Enhanced Intel SpeedStep Technology
Intel AES New Instructions
Idle States
Thermal Monitoring Technology
Execute Disable Bit
Intel Trusted Execution Technology
Intel VT-X With Extended Page Tables (EPT)
Intel Flex Memory Access
Intel Virtualization Technology (VT-X)
Instruction Set
Intel Enhanced Halt State
Processor Code
Intel Virtualization Technology for Directed I/O
Processor Package Size
CPU Configuration (max)
Intel Demand Based Switching
Intel Smart Cache
Processor ARK ID
Display
Power
Power Supply
Weight & Dimensions
Weight
Height
Depth
Width
Operational Conditions
Certificates
Packaging Content
Display Included
Other Features
Technical Details
Technical Details
Management Features

Expert Reviews

(10)
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

(3)
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
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 w781, hp w781p, hp wm640, hp wm640e, wm509eaabu, hp wm640et, hp p244664, hp p231414, hp p244664p, hp p231414p, hp inc z420, hp inc wm613, hp inc z420x, hp inc wm509, hp inc z420xe, hp inc wm509e, hp wm509eaabu, hp inc wm613e, hp inc wm509ea, hp inc wm613ea, hp inc z420xeo, hp inc wm613eaa, hp inc z420xeon, hp inc wm509eaa, hp inc wm509eaab, hp inc wm613eaab, hp inc wm613eaabu, hp inc wm509eaabu
Barcodes 00887758237274, 00887758400654, 00887758400715, 00887758400845, 00887758400876, 00887758400913, 00887758400937, 00887758408803, 00887758408810, 00887758408889, 00888182414972, 00888182415016, 00888182415061, 00888182415078, 00888182415702, 00888182415764, 00888182416327, 00888182416334, 00888182416372, 00888182416396, 00888182416402, 00888182416419, 00888182449882, 00888182677957, 00888182823101, 08877582372748, 08881828231010

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