Workstation Z2 G1I - Core Ultra 9 285K - 64GB RAM - 2TB SSD - Win11 Pro

Introduction

Mainstream workstation performance—reimagined
Experience new levels of performance for professional workflows. The HP Z2 Tower AI workstation is reengineered to support high-end graphics and seamlessly run both single and multi-threaded apps for fast modeling, simulation, and rendering. Enjoy easy expandability to upgrade, when needs evolve.

Processor

Processor manufacturer

Intel

Processor family

Intel Core Ultra 9

Processor generation

Intel Core Ultra (Series 2)

Processor model

285K

Processor cores

24

Processor threads

24

Processor boost frequency

5.7 GHz

Performance cores

8

Efficient cores

16

Performance-core Max Turbo Frequency

5.5 GHz

Efficient-core Max Turbo Frequency

4.6 GHz

Performance-core base frequency

3.7 GHz

Efficient-core base frequency

3.2 GHz

Processor cache

36 MB

Processor cache type

L3

Processor base power

125 W

Maximum turbo power

250 W

Neural processor unit (NPU)

Neural processor unit (NPU)

Intel AI Boost

Sparsity support

Yes

Windows Studio effects support

Yes

AI software frameworks supported by NPU

DirectML, OpenVINO, Windows ML, ONNX RT, WebNN

Total processor performance up to

36 TOPs

NPU performance up to

13 TOPs

GPU performance up to

8 TOPs

Memory

Internal memory

64 GB

Maximum internal memory

64 GB

Internal memory type

DDR5-SDRAM

Memory layout (slots x size)

2 x 32 GB

Memory clock speed

5600 MHz

Memory module type

UDIMM

Non-ECC

Yes

Memory data transfer rate

5600 MT/s

Storage

Total storage capacity

2 TB

Storage media

SSD

Optical drive type

No

Number of storage drives installed

1

Total SSDs capacity

2 TB

Number of SSDs installed

1

SSD capacity

2 TB

SSD interface

PCI Express 5.0

NVMe

Yes

SSD form factor

M.2

Graphics

Discrete graphics card

Yes

Discrete GPU manufacturer

NVIDIA

On-board graphics card

Yes

Discrete graphics card model

NVIDIA RTX 4000 Ada

Discrete graphics card memory

20 GB

Discrete graphics memory type

GDDR6

Number of discrete graphics cards

1

On-board GPU manufacturer

Intel

On-board graphics card family

Intel® Graphics

On-board graphics card model

Intel® Graphics

Performance

Market positioning

Performance

Motherboard chipset

Intel W880

Password protection

Yes

Password protection type

BIOS, Power on

Product type

Workstation

Network

Ethernet LAN

Yes

Ethernet LAN data rates

10,100,1000 Mbit/s

Cabling technology

10/100/1000Base-T(X)

Wi-Fi

Yes

Top Wi-Fi standard

Wi-Fi 7 (802.11be)

Wi-Fi standards

Wi-Fi 7 (802.11be)

WLAN controller manufacturer

Intel

WLAN controller model

Intel Wi-Fi 7 BE200

Antenna type

2x2

Bluetooth

Yes

Bluetooth version

5.4

Ports & interfaces

USB 2.0 ports quantity

3

USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity

6

USB 3.2 Gen 2x2 Type-C ports quantity

2

DisplayPorts quantity

2

DisplayPort version

1.4

Ethernet LAN (RJ-45) ports

1

Combo headphone/mic port

Yes

Line-out

Yes

Line-in

Yes

Microphone in

Yes

Expansion slots

Number of 3.5" bays

1

PCI Express x16 (Gen 4.x) slots

1

Power

Power supply

700 W

Power supply input voltage

100 - 240 V

Power supply input frequency

50 - 60 Hz

Design

Chassis type

Tower

Colour name

Black

Placement supported

Vertical

Number of 5.25" bays

1

Product colour

Black

Intel® vPro™ Platform Eligibility

No

Introduction year

2025

Country of origin

Czech Republic

Software

Operating system installed

Windows 11 Pro

Processor special features

Intel® Turbo Boost Technology

Yes

Display

Display included

No

Brand-specific features

HP Support Assistant

Yes

HP Artificial Intelligence

AI Workstation, AI PC

HP GTIN (EAN/UPC)

199251982903

HP segment

Business

Audio

Audio chip

Realtek ALC3205

Weight & dimensions

Width

175 mm

Depth

426 mm

Height

175 mm

Weight

8.6 kg

Packaging data

Package width

590 mm

Package depth

490 mm

Package height

295 mm

Package weight

12.5 kg

Sustainability

Sustainability compliance

Yes

Sustainability certificates

ENERGY STAR, EPEAT, TCO, TCO10

Sustainable technologies and materials

Low halogen; Bulk packaging available; 10% ITE-derived closed loop plastic; 25% ocean-bound plastic in system fans; Product Carbon Footprint; Contains at least 60% post-consumer recycled plastic; System has a QR code enabled experience where the user has access to a product portal – beginning December 2025, this is complete with product feature highlights, sustainability information, getting started guides, and direct setup and support options; New Energy Consumption dashboard available to customers providing timely carbon usage including recommended actions users can take to decrease carbon footprint

Certificates

Low halogen

Yes

Carbon footprint

Total carbon footprint (kg of CO2e)

630

Carbon emissions, manufacturing (kg of CO2e)

311

Carbon emissions, logistics (kg of CO2e)

6

Carbon emissions, end-of-life (kg of CO2e)

2

Total carbon emissions, w/o use phase (kg of CO2e)

315

Logistics data

Harmonized System (HS) code

8471500000

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 3y NBD Onsite WS Bundling. For terms and conditions, please visit https://h20195.www2.hp.com/v2/GetPDF.aspx/4AA5-6385EEE & https://www8.hp.com/h20195/v2/getpdf.aspx/4AA5-7123EEGB.pdf

Other features

UNSPSC-code

43211515