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HP Z420
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HP Z420 4 Core Intel Xeon E5 3.7GHz 8GB 240GB SSD

4 Intel Xeon E5 3.7GHz 8GB May 2014
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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17 Reasons For

Good Brand

Based on 242 owner and expert reviews, HP has good reviews for its personal computers. HP also has good reviews specifically for its medium processor core personal computers.

64-Bit Processor Operating Mode

This PC supports a 64-bit processor operating mode, which is the most commonly supported processor operating mode on medium processor core personal computers that were released around the same time as it.

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Quite Fast Max Memory Bandwidth Supported Processor

With a max memory bandwidth supported processor of 59.7 gigabytes per second, the HP Z420 has a fairly fast max memory bandwidth supported processor compared to most of the other medium processor core personal computers that were launched around the same time as the Z420. Across all the comparable spec computers that are a similar age to the Z420 the max memory bandwidth supported processor range from 10GB/s to 68GB/s.

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Quite Big Max Internal Memory Supported Processor

With a max internal memory supported processor of 256 gigabytes, the HP Z420 has a fairly big max internal memory supported processor compared to most of the other medium processor core personal computers that have been available for around the same time as the Z420. Across all the computers of a comparable type and age to the Z420 the max internal memory supported processors range from 2GB to 770GB.

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Very Fast Processor Clock Speed

The average processor clock speed of computers that have been available for around the same time as the Z420 is 3.1GHz. At 3.7 gigahertz, the HP Z420 has a very fast processor clock speed compared to most of the other PCs of a similar type and age to the Z420.

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SSD Storage Medium

The HP Z420 has an SSD storage medium which is faster than the HDD storage medium found on most medium processor core personal computers that are a comparable age to it. Solid State Drives (SSD) store information in transistors on a circuit board rather than on optical or magnetic media. This has the advantage of being much faster than a traditional HDD drive.

An SSD storage medium is actually the best storage speed amongst all desktop computers of a comparable spec and age to the Z420.

An HDD storage medium is the worst storage speed amongst similar types of computer.

Alternative SSD personal computers currently available which you might want to consider include because of it's better review score, the DELL Precision T1700 SFF[plb_2676603_price].

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L3 Processor Cache Level

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

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3 PCI Express Slots Version

This PC supports a 3 PCI Express slots version, which is the most commonly supported PCI Express slots version on PCs that are a similar age to it.

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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 the most commonly found cabling technology on PCs of a similar spec and age to it.

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Two PCI Express X16 Slots

The HP Z420 is a two PCI Express x16 slot personal computer. Most of the other computers of a similar age and type to the Z420 have between one and two PCI Express x16 slots.

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Two Firewire (IEEE 1394) Ports

The HP Z420 is a two Firewire (IEEE 1394) port PC. Most of the other medium processor core personal computers that have been on the market for around the same time as the Z420 only have one Firewire (IEEE 1394) port.

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Two DisplayPorts

The HP Z420 is a two DisplayPort desktop computer.

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Fairly Big Maximum Internal Memory

The HP Z420 has one of the bigger maximum internal memory (64 gigabytes) amongst personal computers of this age. The smallest maximum internal memory of similar spec personal computers that have been on the market for more than two years is 2GB and the biggest is 260GB.

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Very Big Processor Cache

The average processor cache of computers of a comparable type and age to the Z420 is 6.8MB. When compared to other personal computers of a comparable type and age to the Z420, the HP Z420's processor cache of 10 megabytes is one of the biggest.

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Fairly Fast Maximum Turbo Frequency

At 3.9 gigahertz, the HP Z420 has a quite fast maximum turbo frequency compared to most of the other personal computers of this age and type. The slowest maximum turbo frequency of personal computers of a comparable age and spec to the Z420 is 1.3GHz, the fastest is 4.4GHz, and the average maximum turbo frequency is 3.6GHz.

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Has One Memory Slot

The HP Z420 has a greater number of memory slots than most desktop computers of a similar age and type to it. 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 personal computer.

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DVD Super Multi Optical Drive Type

The optical drive type of this PC is DVD Super Multi, which is typical of many PCs of a comparable age and type to it.

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4 Reasons Against

Quite Slow Memory Clock Speed Supported by Processor

Computers that have been on the market for more than two years have memory clock speeds supported by processors of between 800MHz and 2,200MHz, and the average memory clock speed supported by processor is 1,300MHz. At only 800 megahertz, the HP Z420 has a very slow memory clock speed supported by processor compared to most of the other medium processor core personal computers that have been around for a similar time to the Z420.

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Very Small Total Storage Capacity

Across all the comparable spec personal computers that were released around the same time as the Z420 the total storage capacity range from 32GB to 3TB. The HP Z420 has one of the smaller total storage capacity (only 240 gigabytes) amongst medium processor core personal computers of this age.

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Heavy

The HP Z420 is one of the heavier medium processor core personal computers that were launched more than two years ago (12.5 kilograms) amongst desktop computers of this age. Across all the medium processor core personal computers that have been around for around the same time as the Z420 the weights range from 250g to 24kg, and the average weight is 8.2kg.

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Very Tall

The heights of medium processor core personal computers that are a comparable age to the Z420 range from 19mm to 560mm, and the average height is 280mm. The HP Z420 is one of the tallest medium processor core personal computers that are a comparable age to the Z420 (447.6 millimeters) amongst personal computers of this age.

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2 Other reasons to consider the HP Z420

Released Over Two Years Ago

This personal computer has been on the market for over two years.

Average Internal Memory

At 8 gigabytes, the HP Z420 has a fairly typical internal memory compared to most of the other similar spec computers that were released around the same time as the Z420.

If you are looking for a bigger internal memory then you might want to look at the Zoostorm Intel Core i7-4790 Mini Tower[plb_2785392_price] (12GB) which also has a higher rating.

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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
Internal Memory Type
Storage
Total Storage Capacity
Storage Medium
Solid-State Drive Interface
Solid-State Drive Capacity
Integrated Card Reader
Optical Drive
Optical Drive
Optical Drive Type
Video
Graphics
Operating System/software
Operating System
Recovery Operating System
Operating System Architecture
Networking
WiFi
Ethernet LAN Connection
Ports & Interfaces
Firewire (IEEE 1394) Port
Headphone Out Port
Microphone in Port
Line-Out Port
Line-In Port
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 Slot
PCI Express X8 Slot
PCI Express X4 Slot
Design
Chassis Type
Case Colour
Water Cooling System
Performance
Motherboard Chipset
Product Type
Processor Special Features
Intell Identity Protection Technology
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 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
Intel Virtualization Technology
Technical Details
Technical Details
Management Features

Expert Reviews

(9)
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 wm685ea, wm685eaaby, wm685eaabu, wm685eauuw
Barcodes 00888793175590, 00888793176092, 00888793176160, 00888793176214, 00888793176474, 08887931764742

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