HP Z4 G5 Intel Xeon w5 w5-2455X 64 GB DDR5-SDRAM 512 GB SSD Windows 11 Pro Tower Workstation AI Workstation Black

Z4 G5 Workstation PC, Windows 11 Pro, Intel Xeon w5, 64GB RAM, 512GB SSD, AI Workstation

Key Features

• Intel Xeon W5-2455X (up to 4.4 GHz with Intel Turbo Boost Technology, 30 MB L3 cache, 12 cores, 24 threads)
• Windows 11 Pro
• 64 GB DDR5-4800 MT/s ECC (4 x 16 GB), 512 GB HP Z Turbo Drive PCIe Gen4 TLC M.2 SSD

Reasons To Buy

HP recommends Windows 11 Pro for business

Work anywhere without compromising on performance with Windows 11 and HP collaboration, security, and connectivity technology. Summarize and rewrite content, get relevant content recommendations, and stay organized with Microsoft Copilot.^[8]

Intel® Xeon® W processor

Get optimized performance whether your professional application utilizes high core count or high frequency with the Intel® Xeon® W processor.^[1]

Professional Grade Graphics

Tackle advanced video editing, machine learning and simulation projects

Ultra Fast Memory Configurations

Accelerate your workflow. Power through memory-intensive workloads with fast rendering, simulation, machine learning and video editing performance.

Professional performance. Extraordinary expandability.

Master intense workflows with up to 2 high-end professional GPUs, 26 cores^[1] in a next-gen Intel® Xeon® W processor, and 512 GB of memoryq^[2]. Easily expand as work evolves with tool-less access, 5 PCIe slots, and 2 front accessible NVMe bays.^[3]

Engineered to stay cool and quiet.

Push your desktop workstation without disruptive noise. Smart fan control keeps the system whisper-quiet by tuning fan speeds in real-time using over 20 temperature sensors. Precisely placed vents and ducts streamline airflow and heat removal.

Ignite AI innovation

Accelerate AI development and inferencing with the Z4 AI workstation, with up to 2 NVIDIA RTX™ 6000 Ada Generation GPUs^[4] delivering up to 2,914 AI TOPS for advanced AI. Process proprietary data securely on a local workstation to gain insights faster.

Designed with the planet in mind.

At HP, we care about the impact our products have on our people, communities, and planet. That’s why the Z4 contains 40% recycled plastics,^[5] 10% recycled metal, 100% sustainably sourced outer box packaging, and is EPEAT® Gold Climate+ registered.^[6,7]

Description

Power-up to next level pro performance
This high performance desktop workstation does it all. Tackle advanced workflows—from rendering and simulation to advanced video editing and massive dataset preparation. The Z4 AI workstation accelerates workflows across a wide range of professional apps and provides room to expand as work evolves.

Specifications

Processor
Processor cache type	L3
Processor cache	30 MB
Processor frequency	3.2 GHz
Processor model	w5-2455X
Processor manufacturer	Intel
Processor boost frequency	4.4 GHz
Processor threads	24
Processor cores	12
Processor family	Intel Xeon w5
Performance cores	12
Efficient cores	0
Processor base power	200 W
Maximum turbo power	240 W
Memory
ECC	Yes
Memory layout (slots x size)	4 x 16 GB
Internal memory	64 GB
Maximum internal memory	64 GB
Memory slots	8x DIMM
Internal memory type	DDR5-SDRAM
Memory clock speed	4800 MHz
Memory module type	DIMM
Memory data transfer rate	4800 MT/s
Storage
Storage media	SSD
Number of storage drives installed	1
Optical drive type	No
SSD interface	PCI Express 4.0
SSD capacity	512 GB
Number of SSDs installed	1
Total storage capacity	512 GB
SSD memory type	TLC
SSD form factor	M.2
Total SSDs capacity	512 GB
NVMe	Yes
Graphics
Discrete graphics card	No
On-board graphics card	No
Discrete graphics card model	Not available
On-board graphics card model	Not available
Performance
Market positioning	Performance
Password protection	Yes
Password protection type	BIOS, Power on
Product type	Workstation
Trusted Platform Module (TPM)	Yes
Motherboard chipset	Intel W790
Trusted Platform Module (TPM) version	2.0
Audio chip	Realtek ALC3205-CG
Optical drive
Optical drive type	No
Network
Ethernet LAN	Yes
Wi-Fi	No
Ethernet LAN data rates	10,100,1000 Mbit/s
Cabling technology	10/100/1000Base-T(X)
Ports & interfaces
Combo headphone/mic port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0
Thunderbolt 3 ports quantity	0
USB 2.0 ports quantity	0
Microphone in	Yes
Line-out	Yes
Line-in	Yes
HDMI ports quantity	0
Ethernet LAN (RJ-45) ports	1
Expansion slots
Number of 3.5" bays	4
PCI Express x4 (Gen 4.x) slots	2
PCI Express x16 (Gen 4.x) slots	2
PCI Express x16 (Gen 5.x) slots	1
Power
Power supply	1125 W
Technical details
Cable lock slot type	Kensington
Product type	Workstation
Trusted Platform Module (TPM)	Yes
Intel® Turbo Boost Technology	Yes
Product colour	Black
Chassis type	Tower
Number of 3.5" bays	4
Cable lock slot	Yes
Motherboard chipset	Intel W790
UNSPSC-code	43211515
Memory module type	DIMM
Sustainable technologies and materials	Low Halogen; 40% post-consumer recycled plastic; 25% ITE-derived closed loop plastic; Bulk packaging available; External power supply 90% efficiency; Plastic cushion inserts contain 80% recycled content; Ocean-bound plastic in system fan; 10% post-industrial recycled metal; Molded paper pulp cushion inside box is 100% sustainably sourced and recyclable
Sustainability compliance	Yes
Sustainability certificates	EPEAT, TCO
General Product Safety Regulation (GPSR) URL	https://support.hp.com/us-en/document/ish_6126692-6126777-16?openCLC=true https://kaas.hpcloud.hp.com/pdf-public/pdf_6303729_en-US-1.pdf
HP GTIN (EAN/UPC)	199251555589
Design
Cable lock slot type	Kensington
Product colour	Black
Chassis type	Tower
Number of 3.5" bays	4
Cable lock slot	Yes
Country of origin	Czech Republic
Introduction year	2025
Software
Pre-installed software	HP Performance Advisor; HP Support Assistant; HP PC Hardware Diagnostics Windows; HP Image Assistant; HP Manageability Integration Kit; HP Anyware; HP Data Science Stack; HP Services Scan
Operating system installed	Windows 11 Pro
Display
Display included	No
Processor special features
Intel® Turbo Boost Technology	Yes
Brand-specific features
HP Support Assistant	Yes
HP Security tools	Full volume encryption; HP Secure Erase; Kensington lock slot; Secure authentication; TPM 2.0 certified; HP BIOSphere; HP Sure Run; HP Sure Click; HP Sure Sense; HP Sure Admin; HP Platform Certificate; HP Sure Start; HP Sure Recover; Self-Encrypted Drives
HP Management tools	HP Driver Packs; HP System Software Manager (download); HP BIOS Configuration Utility (download); HP Smart Support
HP Software provided	HP PC Hardware Diagnostics UEFI; HP Performance Advisor; HP PC Hardware Diagnostics Windows; HP Image Assistant; HP Manageability Integration Kit; HP Anyware; HP Data Science Stack
HP segment	Business
HP Artificial Intelligence	AI Workstation
HP GTIN (EAN/UPC)	199251555589
Audio
Audio chip	Realtek ALC3205-CG
Sustainability
Total carbon footprint (kg of CO2e)	610
Sustainable technologies and materials	Low Halogen; 40% post-consumer recycled plastic; 25% ITE-derived closed loop plastic; Bulk packaging available; External power supply 90% efficiency; Plastic cushion inserts contain 80% recycled content; Ocean-bound plastic in system fan; 10% post-industrial recycled metal; Molded paper pulp cushion inside box is 100% sustainably sourced and recyclable
Sustainability compliance	Yes
Sustainability certificates	EPEAT, TCO
Weight & dimensions
Package width	314 mm
Package depth	572 mm
Package height	563 mm
Width	168.9 mm
Depth	444.5 mm
Height	168.9 mm
Package weight	14.3 kg
Weight	10.5 kg
Packaging data
Package width	314 mm
Package depth	572 mm
Package height	563 mm
Package weight	14.3 kg
Packaging content
Numeric keypad	No
Mouse included	Yes
Keyboard included	Yes
Input device model	HP Wired 320M Mouse
Mouse connectivity	Wired
Display included	No
Keyboard connectivity	Wired
Certificates
Low halogen	Yes
Keyboard
Keyboard connectivity	Wired
Supplier features
Manufacturer warranty	1 year (1/1/1) limited warranty includes 1 year of parts, labor and on-site repair. Terms and conditions vary by country. Certain restrictions and exclusions apply.
Support service included	HP 5 year Onsite w/Predictive Detection Alerts HE Workstation. For terms and conditions, please visit https://h20195.www2.hp.com/v2/GetPDF.aspx/4AA7-8543EEE & https://www8.hp.com/h20195/v2/getpdf.aspx/4AA5-7123EEGB.pdf
Carbon footprint
Total carbon footprint (kg of CO2e)	610
Total carbon emissions, w/o use phase (kg of CO2e)	309
Carbon emissions, manufacturing (kg of CO2e)	290
Carbon emissions, logistics (kg of CO2e)	5
Carbon emissions, end-of-life (kg of CO2e)	2
Features
Country of origin	Czech Republic
Other features
Trusted Platform Module (TPM)	Yes
On-board graphics card	No
Processor manufacturer	Intel
UNSPSC-code	43211515
Memory module type	DIMM
Country of origin	Czech Republic
Manufacturer warranty	1 year (1/1/1) limited warranty includes 1 year of parts, labor and on-site repair. Terms and conditions vary by country. Certain restrictions and exclusions apply.
Support service included	HP 5 year Onsite w/Predictive Detection Alerts HE Workstation. For terms and conditions, please visit https://h20195.www2.hp.com/v2/GetPDF.aspx/4AA7-8543EEE & https://www8.hp.com/h20195/v2/getpdf.aspx/4AA5-7123EEGB.pdf