Budget the complete setup
Budget for monitor, keyboard, mouse, cables and operating system if absent.
Expert reviews. One COR Score.
HP Z420 reviews
Brand: HP More HP desktop pcs reviews →
tbd
Compare HP Z420 reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer codeWM521ET
The product, explained
About the HP Z420
HP WM521ET is listed in the pcs/workstations category. The recorded specifications include processor family: Intel® Xeon® E5 Family; internal memory: 8 GB; total storage capacity: 1 TB; operating system installed: Windows 7 Professional. This entry covers manufacturer code WM521ET. Specifications relate to this exact source record; other editions or packages may differ.
This configuration lists 8 GB of memory and 1 TB of storage. Memory supports active applications; storage holds software and files. Check upgradeability separately, because a capacity figure does not establish whether either component can be replaced.
- Processor family
- Intel® Xeon® E5 Family
- Processor model
- E5-1650
- Memory (RAM)
- 8 GB
- Total storage capacity
- 1 TB
- Storage media
- HDD
- Operating system installed
- Windows 7 Professional
Make it work for you
Before choosing the HP Z420
Match components to applications
Match processor, memory and graphics to named applications.
Measure desk and ventilation
Measure desk and ventilation space, including cable access.
Confirm display support
Confirm monitor outputs, resolution and refresh support.
Independent perspectives
Expert reviews 0
Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.
No scored critic reviews have been imported for this exact product yet. It remains unrated.
Independent reviews, made comparable
What does the COR Score mean?
One consistent scale makes different publishers’ ratings easier to compare. The original review still tells you why a critic reached that verdict.
Read our scoring methodology →Scale conversion · example
8/ 104.00/ 5
An illustration of conversion, not this product’s rating.
Check the match
Identify the exact model and the version reviewed. Check the manufacturer code, configuration and supplied accessories.
Compare on one scale
Convert usable ratings to five points, count each publisher once and give each critic equal weight.
Require three critics
Show the average to two decimal places after three distinct critics. Otherwise display tbd, keeping individual reviews visible.
Find the best fit by considering the score alongside the critic count, review dates, tested version and the strengths that matter to you. Eligible model-level reviews identify the tested configuration. Reviews of different hardware are shown separately and do not enter this product’s COR Score.
Know exactly what you’re buying
HP Z420 specifications
Manufacturer code: WM521ET · Icecat product 17852106 · Checked 26 Sep 2026. Specifications belong to this exact model.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Processor family | Intel® Xeon® E5 Family |
|---|---|
| Processor model | E5-1650 |
| Memory (RAM) | 8 GB |
| Total storage capacity | 1 TB |
| Storage media | HDD |
| Operating system installed | Windows 7 Professional |
| Discrete graphics card model | Not available |
| Chassis type | Minitower |
| Wi-Fi | No |
| Ethernet LAN | Yes |
More product specifications
Open a section for the details that matter to you.
Audio & listening3 details
| Headphone outputs | 1 |
|---|---|
| Microphone in | Yes |
| Audio system | HD |
Display2 details
| Intel Dual Display Capable Technology | No |
|---|---|
| Display included | No |
Processor, memory & storage31 details
| Processor manufacturer | Intel |
|---|---|
| Processor cores | 6 |
| Processor threads | 12 |
| Processor boost frequency | 3.8 GHz |
| Processor frequency | 3.2 GHz |
| Processor cache | 12 MB |
| Processor cache type | Smart Cache |
| Processor lithography | 32 nm |
| Processor operating modes | 64-bit |
| Processor series | Intel Xeon E5-1600 |
| Processor codename | Sandy Bridge EP |
| Number of processors installed | 1 |
| Processor socket | LGA 2011 (Socket R) |
| Maximum internal memory supported by processor | 375 GB |
| Memory types supported by processor | DDR3-SDRAM |
| Memory clock speeds supported by processor | 800,1066,1333,1600 MHz |
| Memory bandwidth supported by processor (max) | 51.2 GB/s |
| ECC supported by processor | Yes |
| Maximum internal memory | 64 GB |
| Internal memory type | DDR3-SDRAM |
| Memory layout (slots x size) | 4 x 2 GB |
| Memory slots | 8x DIMM |
| Memory clock speed | 1600 MHz |
| HDD capacity | 1 TB |
| HDD speed | 7200 RPM |
| Motherboard chipset | Intel® C602 |
| Intel® Smart Cache | Yes |
| Processor package size | 52.5 x 45.0 mm |
| Intel Rapid Storage Technology | No |
| Processor ARK ID | 64601 |
| Conflict-Free processor | No |
Camera, image & video4 details
| Intel® Clear Video HD Technology (Intel® CVT HD) | No |
|---|---|
| Intel Clear Video Technology | No |
| Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID) | No |
| Intel® Quick Sync Video Technology | No |
Connections & wireless9 details
| HDD interface | SATA |
|---|---|
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| USB 2.0 ports quantity | 5 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| DVI port | No |
| PS/2 ports quantity | 2 |
| Firewire (IEEE 1394) ports | 2 |
| Intel® Wireless Display (Intel® WiDi) | No |
Power & battery1 detail
| Power supply | 600 W |
|---|
Design & dimensions9 details
| Thermal Design Power (TDP) | 130 W |
|---|---|
| Product type | Workstation |
| Product colour | Black |
| Intel Identity Protection Technology version | 0.00 |
| Intel® Identity Protection Technology (Intel® IPT) | No |
| Width | 177.8 mm |
| Depth | 445.2 mm |
| Height | 447.6 mm |
| Weight | 12.5 kg |
Software & compatibility4 details
| Operating system architecture | 64-bit |
|---|---|
| Recovery operating system | Windows 8 Pro |
| Supported instruction sets | AVX |
| Compliance certificates | RoHS |
Further product details51 details
| System bus rate | 0 GT/s |
|---|---|
| Bus type | QPI |
| FSB Parity | No |
| Tcase | 64 °C |
| PCI Express slots version | 3.0 |
| Maximum number of PCI Express lanes | 40 |
| PCI Express configurations | x4, x8, x16 |
| CPU multiplier (bus/core ratio) | 38 |
| ECC | Yes |
| Memory channels | Quad-channel |
| Optical drive type | DVD Super Multi |
| Total HDDs capacity | 1 TB |
| Number of HDDs installed | 1 |
| Optical drives quantity | 1 |
| Cabling technology | 10/100/1000Base-T(X) |
| Number of 3.5" bays | 3 |
| PCI Express x4 slots | 1 |
| PCI Express x8 slots | 2 |
| PCI Express x16 slots | 2 |
| PCI slots | 1 |
| Number of 5.25" bays | 3 |
| Cooling type | Active |
| Intel 64 | Yes |
| Enhanced Intel SpeedStep Technology | Yes |
| Embedded options available | No |
| Intel® InTru™ 3D Technology | No |
| Intel® Insider™ | No |
| Intel VT-x with Extended Page Tables (EPT) | Yes |
| Idle States | Yes |
| Thermal Monitoring Technologies | Yes |
| Intel® AES New Instructions (Intel® AES-NI) | Yes |
| Intel Trusted Execution Technology | Yes |
| Execute Disable Bit | Yes |
| Intel FDI Technology | No |
| Intel Flex Memory Access | No |
| Intel Fast Memory Access | No |
| Intel Enhanced Halt State | Yes |
| Intel Demand Based Switching | Yes |
| Scalability | 1S |
| CPU configuration (max) | 1 |
| Intel Virtualization Technology for Directed I/O (VT-d) | Yes |
| Intel Secure Key Technology version | 1.00 |
| Intel Virtualization Technology (VT-x) | Yes |
| Intel TSX-NI version | 0.00 |
| Intel® Turbo Boost Technology | 2.0 |
| Intel® Hyper Threading Technology (Intel® HT Technology) | Yes |
| Intel® My WiFi Technology (Intel® MWT) | No |
| Intel® Anti-Theft Technology (Intel® AT) | No |
| Mouse included | No |
| Keyboard included | No |
| Sustainability certificates | EPEAT Gold, ENERGY STAR |
Packaging & supplied accessories1 detail
| Country of origin | China |
|---|
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
Build your shortlist
Compare other desktop pcs
More products in this category. Compare their exact features, original reviews and available offers alongside the HP Z420.
| Product | Brand | Shown model | COR Score |
|---|---|---|---|
| Apple Mac mini M6 reviews → | Apple | MHQM4B/A512 GB · 24 GB RAM · M6 · Silver | tbd2 critic reviews · Available after 3 |
| Apple iMac 24 M4 reviews → | Apple | MWV53B/A512 GB · 16 GB RAM · M4 · Pink | tbd0 critic reviews · Available after 3 |
| Apple Mac mini M5 Pro reviews → | Apple | MHQN4B/A512 GB · 24 GB RAM · M5 Pro · Silver | tbd0 critic reviews · Available after 3 |
| Apple Mac Studio M5 Max reviews → | Apple | MHQJ4B/A1 TB · 64 GB RAM · M5 Max · Silver | tbd0 critic reviews · Available after 3 |
Your questions, answered
HP Z420 FAQs
How many expert reviews are available for HP Z420?
No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.
What is the COR Score for HP Z420?
The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.
Which exact version does this page cover?
This page identifies HP Z420 using manufacturer code WM521ET. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.
What is the listed processor family for HP Z420?
The source specification records processor family as Intel® Xeon® E5 Family. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
What is the listed processor model for HP Z420?
The source specification records processor model as E5-1650. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
Where can I compare prices for HP Z420?
Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.
Is a desktop cheaper than a laptop?
It can offer different value, but compare the whole usable setup including display and peripherals.
Can I upgrade any desktop?
No. Chassis, power supply, motherboard and warranty constraints vary. Read the exact model documentation.
Does a larger power supply use more electricity?
Its rating is capacity, not a measure of constant consumption. Actual use depends on the components and workload.
How should I use the specifications alongside reviews?
Use the recorded features to check compatibility and make a shortlist. Read the original reviews for measured performance, everyday use and the tested configuration.
Understand your options
Desktop PC buying guides
Explore one topic in depth before making your shortlist.
Start with the complete buying guide →Desktop PC sizes explained: tower, small form factor and mini PCA full tower, compact business desktop and mini PC may use processors with similar names yet behave differently under sustained work. Case volume influences component choice, cooling and the repairs possible later.Desktop graphics card upgrades: the compatibility checksTreat a graphics upgrade as a case, slot, power, cooling and software project rather than a single connector swap.Choosing a desktop CPU without ignoring coolingMatch processor class to sustained workloads, then check power limits, cooler and case airflow.Prebuilt vs custom desktop PCsBalance warranty, setup and known compatibility against component choice, repair freedom and assembly responsibility.