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HP Z420
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HP Z420 6 Core Intel Xeon E5 3.2GHz 8GB

6 Intel Xeon E5 3.2GHz 8GB Jul 2015
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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£2,159.98
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£2,207.98
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7 Reasons For

Expert Reviews Are Good

On average, based on five expert reviews from sites including PC Mag, justechn.com, computershopper.com and IT Reviews.com the average expert rating of this HP desktop computer is 80%.

HP Personal Computers Have Good Reviews

HP has good average reviews for its many processor core personal computers as well as across its entire personal computer range compared to other manufacturers.

Robust

One customer who reviewed it thought it was well made. Expert website Computershopper.com mentioned “HP's mid-range workstation is an exemplary if somewhat plain vanilla example of the category, solidly built and a speedy performer” in their review of this PC.

Reasonably Priced

One person who purchased the product wrote that it was good value for money. Expert website Justechn.com said “HP was good enough to send me the Z420, which is their Price/Performance Leader” in their HP Z420 review.

64-Bit Processor Operating Mode

This personal computer supports a 64-bit processor operating mode, which is the most frequently supported processor operating mode on many processor core personal computers that have been around for a comparable time 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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Has One Memory Slot

The number of memory slots found on the HP Z420 is more than most many processor core personal computers that have been available for more than a year. The most commonly 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 personal computer.

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9 Reasons Against

Very Slow Memory Clock Speed Supported by Processor

With a memory clock speed supported by processor of only 800 megahertz, the HP Z420 has one of the slower memory clock speeds supported by processors amongst many processor core personal computers of this age. The memory clock speeds supported by processors of many processor core personal computers that have been around for a comparable time to the Z420 range from 800MHz to 1,600MHz, and the average memory clock speed supported by processor is 1,100MHz.

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Very Slow Max Memory Bandwidth Supported Processor

Many processor core personal computers that have been on the market for around the same time as the Z420 have max memory bandwidth supported processor of between 51GB/s and 68GB/s, and the average max memory bandwidth supported processor is 61GB/s. The HP Z420 has one of the slower max memory bandwidth supported processor (only 51.2 gigabytes per second) amongst comparable spec computers of this age.

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Quite Small Internal Memory

The average internal memory of many processor core personal computers that have been on the market for a comparable time to the Z420 is 24GB, and the internal memory range from 8GB to 64GB. With an internal memory of only 8 gigabytes, the HP Z420 has a very small internal memory compared to most of the other many processor core personal computers that were released one year ago.

We compared this desktop computer to all the other 8GB memory PCs and we think the Lenovo P700[plb_3007701_price] which has better reviews is also worth considering.

If you would prefer a bigger internal memory then you might want to look at the Fujitsu R940[plb_3102331_price] (16GB) which is also higher rated.

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Only One CPU Configuration (max)

Most many processor core personal computers that have been available for around the same time as the Z420 take one CPU configuration (max), including the HP Z420 which takes one CPU configuration (max).

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Quite Slow Memory Clock Speed

The memory clock speeds of computers of this type and age range from 1,600MHz to 2,200MHz. When compared to other many processor core personal computers that have been on the market for a similar time to the Z420 that we have assessed, the HP Z420's memory clock speed of only 1,600 megahertz is one of the slowest.

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Very Small Processor Cache

Similar spec personal computers that came out more than a year ago have processor caches of between 12MB and 30MB, and the average processor cache is 20MB. At only 12 megabytes, the HP Z420 has a fairly small processor cache compared to most of the other many processor core personal computers that are a similar age to the Z420.

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Very Small Maximum Internal Memory

At only 64 gigabytes, the HP Z420 has a fairly small maximum internal memory compared to most of the other many processor core personal computers that have been available for around the same time as the Z420. Across all the many processor core personal computers that have been around for around the same time as the Z420 the maximum internal memory range from 32GB to 520GB, and the average maximum internal memory is 140GB.

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Only One Ethernet LAN (RJ-45) Port

Most personal computers of this age and type have one Ethernet LAN (RJ-45) port, including the HP Z420 which has one Ethernet LAN (RJ-45) port.

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Only 12 Processor Threads

The HP Z420 is a 12 processor thread desktop computer.

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3 Other reasons to consider the HP Z420

Released Over a Year Ago

This computer was released over a year ago.

Average Processor Clock Speed

At 3.2 gigahertz, the HP Z420 has a pretty average processor clock speed compared to most of the other many processor core personal computers that have been on the market for more than a year.

If you are looking for a PC with a faster processor clock speed then you might also want to look at the DELL Precision T5810[plb_3433476_price] (3.5GHz and higher rated).

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Average Hard Drive Capacity

The HP Z420 has a relatively typical hard drive capacity (1,000 gigabyte) compared to most of the other computers of this type and age.

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Specification

Processor
Processor Core
Processor Family
Processor Clock Speed
PCI Express Slots Version
Processor Thread
Processor Cache Level
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
CPU Multiplier (bus/core Ratio)
Processor Codename
Processor Lithography
Thermal Design Power (TDP)
Bus Type
Processor Cache Type
Processor Installed
Memory
Internal Memory
Error Checking and Correcting (ECC)
Memory Clock Speed
Memory Slot
Memory Layout
Maximum Internal Memory
Internal Memory Type
Storage
Hard Drive Capacity
Hard Drive Speed
Hard Drive Interface
Hard Drive
Optical Drive
Optical Drive Type
Operating System/software
Operating System
Operating System Architecture
Ports & Interfaces
Firewire (IEEE 1394) Port
Headphone Out Port
Microphone in Port
Ethernet LAN (RJ-45) Port
PS/2 Port
USB 3.0 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
Performance
Audio System
Motherboard Chipset
Product Type
Processor Special Features
Intel Hyper-Threading Technology
Intel Turbo Boost Technology
Intel VPro 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
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
Power
Power Supply
Weight & Dimensions
Weight
Height
Depth
Width
Certificates
RoHS Compliant
EPEAT Compliance
Energy Star Certified
Other Features
Networking Feature

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…

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