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HP Z420
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HP Z420 4 Core Intel Xeon E5 3.7GHz 8GB 1TB HDD

4 Intel Xeon E5 3.7GHz 8GB Dec 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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23 Reasons For

HP Has Good Reviews for Its Personal Computers

On average HP medium processor core personal computers have good ratings as do all computers produced by HP.

64-Bit Processor Operating Mode

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

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Fairly Fast Max Memory Bandwidth Supported Processor

The HP Z420 has a quite fast max memory bandwidth supported processor (59.7 gigabytes per second) compared to most of the other PCs of a similar age and spec to the Z420. The average max memory bandwidth supported processor of personal computers that have been available for around the same time as the Z420 is 30GB/s.

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Fairly Big Max Internal Memory Supported Processor

Medium processor core personal computers that were launched more than two years ago have max internal memory supported processors of between 2GB and 770GB. With a max internal memory supported processor of 256 gigabytes, the HP Z420 has one of the bigger max internal memory supported processors amongst medium processor core personal computers of this age.

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Fairly Fast Processor Clock Speed

The HP Z420 has a fairly fast processor clock speed (3.7 gigahertz) compared to most of the other desktop computers of this type and age. PCs that have been on the market for around the same time as the Z420 have processor clock speeds of between 1GHz and 4.1GHz, and the average processor clock speed is 3.1GHz.

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Quite Big Hard Drive Capacity

The HP Z420 has one of the bigger hard drive capacity (1,000 gigabyte) amongst medium processor core personal computers of this age. The average hard drive capacity of medium processor core personal computers that have been on the market for more than two years is 800GB, and the hard drive capacity range from 320GB to 3TB.

If you would prefer a desktop computer with a bigger hard drive capacity then you might also want to consider the Lenovo E32[plb_2326680_price] (2TB), or the Alienware X51[plb_2502156_price] (2TB).

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Fairly Big Total Storage Capacity

The smallest total storage capacity of comparable spec computers that have been on the market for around the same time as the Z420 is 32GB, the biggest is 3TB, and the average total storage capacity is 710GB. The HP Z420 has a fairly big total storage capacity (1,000 gigabyte) compared to most of the other medium processor core personal computers that are a comparable age to the Z420.

If this personal computer total storage capacity is too small for you then you might want to look at the Lenovo E32[plb_2326680_price] (2TB).

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

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

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3 PCI Express Slots Version

This personal computer supports a 3 PCI Express slots version, which is the most commonly supported PCI Express slots version on personal computers of a similar type and age to it.

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Three 5.25" Bays

The HP Z420 has more 5.25" bays than most of the medium processor core personal computers that are a comparable age to the Z420. This HP personal computer is a three 5.25" bay PC compared to most of the PCs of a similar type and age to the Z420 which only have between one and two 5.25" bays.

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L3 Processor Cache Level

This computer has a L3 processor cache level, which is typical of many desktop computers of a similar age and type to it.

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Two Firewire (IEEE 1394) Ports

The HP Z420 has more Firewire (IEEE 1394) ports than most of the personal computers of a similar type and age to the Z420. Most of the desktop computers of a similar age and spec to the Z420 only have one Firewire (IEEE 1394) port, however this desktop computer has two Firewire (IEEE 1394) ports.

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Two DisplayPorts

The HP Z420 is a two DisplayPort computer.

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Fairly Big Maximum Internal Memory

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

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Very Big Processor Cache

When compared to other medium processor core personal computers that have been on the market for around the same time as the Z420 that we have assessed, the processor cache of the HP Z420 of 10 megabytes is one of the biggest. The processor caches of medium processor core personal computers that have been available for around the same time as the Z420 range from 0.51MB to 10MB.

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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 comparable spec PCs that were released around the same time as the Z420 have between one and two PCI Express x16 (Gen 3.x) slots.

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Quite Fast Maximum Turbo Frequency

The HP Z420 has one of the faster maximum turbo frequencies (3.9 gigahertz) amongst computers of this age. The average maximum turbo frequency of medium processor core personal computers that have been on the market for more than two years is 3.6GHz.

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Very Big L3 Cache

Medium processor core personal computers that have been available for more than two years have L3 caches of between 2MB and 10MB. The HP Z420 has one of the biggest L3 caches (10 megabytes) amongst medium processor core personal computers of this age.

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Has One Memory Slot

The HP Z420 has a greater number of memory slots than most computers that have been available for more than two years. The most frequently found memory slot is 4x DIMM, but this memory slot is not found on this computer. The memory slots 8x DIMM are also found on this HP computer.

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Fairly Fast Memory Clock Speed

With a memory clock speed of 1,866 megahertz, the HP Z420 has one of the faster memory clock speeds amongst medium processor core personal computers of this age. The memory clock speeds of PCs of a comparable age and spec to the Z420 range from 1,000MHz to 2,200MHz.

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Very High System Bus Data Transfer Rate

With a system bus data transfer rate of 7.2 Gigatransfers per second, the HP Z420 has one of the highest system bus data transfer rates amongst similar spec PCs of this age. The system bus data transfer rates of comparable spec computers that have been around for a similar time to the Z420 range from 5GT/s to 8GT/s.

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Supports One Case Placement

The number of placements supported by the HP Z420 is more than most personal computers of a comparable spec and age to it. This HP personal computer supports a Vertical case placement, which is the most frequently supported case placement supported by medium processor core personal computers that were launched 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 the most frequently found optical drive type on computers that were launched more than two years ago.

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4 Reasons Against

Quite Slow Memory Clock Speed Supported by Processor

The slowest memory clock speed supported by processor of comparable spec desktop computers that came out around the same time as the Z420 is 800MHz and the fastest is 2,200MHz. When compared to other personal computers that were released more than two years ago that we have checked the memory clock speed supported by processor of, the HP Z420's memory clock speed supported by processor of only 800 megahertz is one of the slowest.

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Only HDD Storage Medium

The storage speed of this desktop computer is HDD, which is typical of many personal computers of a comparable age and type 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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Heavy

At 12.5 kilograms, the HP Z420 is fairly heavy compared to most of the other PCs of this type and age. The average weight of desktop computers of this spec and age is 8.2kg, and the weights range from 250g to 24kg.

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Very Tall

Medium processor core personal computers that have been on the market for more than two years have heights of between 19mm and 560mm, and the average height is 280mm. When compared to other similar spec computers that were released around the same time as the Z420, the HP Z420's height of 447.6 millimeters is one of the tallest.

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2 Other reasons to consider the HP Z420

Released Over Two Years Ago

It was over two years ago when this PC was released.

Average Internal Memory

At 8 gigabytes, the HP Z420 has a pretty average internal memory compared to most of the other desktop computers that are a comparable age to the Z420.

If you are looking for a bigger internal memory then you might also want to look at the Apple Mac Pro[plb_3816853_price] (12GB).

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Specification

Features
Processor
Processor Core
Processor Family
Processor Clock Speed
PCI Express Slots Version
Processor Thread
Processor Cache
Processor Socket
Maximum Turbo Frequency
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
Processor Series
Tcase
PCI Express Lane (maximum)
Processor Operating Mode
PCI Express Configuration
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
Memory Layout
Maximum Internal Memory
Internal Memory Type
Storage
Total Storage Capacity
Storage Medium
Hard Drive Capacity
Compatible Memory Card
Hard Drive Speed
Hard Drive Interface
Hard Drive
Integrated Card Reader
Optical Drive
BD Interface Type
Optical Drive
Optical Drive Type
Video
Graphics
On-Board Graphics Adapter Model
Operating System/software
Operating System
Recovery Operating System
Operating System Architecture
Networking
WiFi Standard
Cabling Technology
Ethernet LAN Data Rate
Ethernet LAN Connection
Ports & Interfaces
Firewire (IEEE 1394) Port
Headphone Out Port
Microphone in Port
Line-Out Port
Line-In Port
DC-In Jack
Ethernet LAN (RJ-45) Port
PS/2 Port
DVI Port
USB 2.0 Port
USB 3.0 (3.1 Gen 1) Type-A Port
Expansion Slots
PCI Slot
PCI Express X16 (Gen 3.x) Slot
PCI Express X8 (Gen 3.x) Slot
PCI Express X8 (Gen 2.x) 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
Intell Identity Protection 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 Virtualization Technology (VT-X)
Instruction Set
Intel Enhanced Halt State
Scalability
Intel Virtualization Technology for Directed I/O
Processor Package Size
CPU Configuration (max)
Intel Demand Based Switching
Intel Smart Cache
Intel Secure Key Technology Version
Processor ARK ID
Display
Power
Power Supply
Weight & Dimensions
Weight
Height
Depth
Width
Operational Conditions
Certificates
Packaging Content
Display Included
Keyboard Supplied
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…

+- Manufacturer's Description

Product Identifiers

Manufacturer Part Numbers hp wm639, hp wm639e, hp wm639et, wm612eaabu, wm639etabd, wm601etuuw, wm612eaacb, bwm639et14aby
Barcodes 00888182200360, 00888182200780, 00888182200827, 00888182414187, 00888182414194, 00888182414200, 00888182414217, 00888182414262, 00888182414897, 00888182414927, 00888182415580, 00888182415597, 00888182415603, 00888182415641, 00888182415665, 00888182415672, 00888182415689, 00888182677940, 00889296523789, 08881824142006, 08881824155976

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