HP Z1 Tower G1i Intel Core Ultra 7 265 16GB 512GB Workstation Desktop PC
The HP Z1 Tower G1i Workstation delivers pro-level, AI-enhanced performance in an expandable tower form factor. Powered by the Intel Core Ultra 7 265 processor (up to 5.3 GHz, 30 MB L3 cache, 20 cores, 20 threads) with integrated Intel AI Boost NPU, 16GB DDR5-5600 memory, and a fast 512GB PCIe NVMe M.2 SSD, this workstation is built for demanding workflows including 3D design, video editing, software development, and AI-accelerated productivity. Tested and certified for professional applications like AutoCAD, SOLIDWORKS, and Siemens NX, the Z1 Tower brings workstation reliability and expandability to creative professionals, engineers, and power users.
Why You'll Love the HP Z1 Tower G1i
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Intel Core Ultra 7 265 processor: 20 cores (8 P-cores + 12 E-cores) with up to 5.3 GHz Turbo Boost and dedicated NPU for AI-enhanced workflows
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16GB DDR5-5600 memory: High-speed DDR5 RAM expandable up to 128GB for seamless multitasking and real-time responsiveness
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512GB PCIe NVMe SSD: Ultra-fast storage with room to expand via additional M.2 and SATA bays
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Windows 11 Pro: Pre-installed with enterprise-grade security and manageability features
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Tool-less expandability: Easy access to upgrade memory, storage, and graphics as your needs evolve
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Certified for pro apps: ISV-certified performance for AutoCAD, SOLIDWORKS, Siemens NX, and more
AI-Powered Performance for the Modern Workflow
The Intel Core Ultra 7 265 features a dedicated NPU (Neural Processing Unit) with 13 TOPS AI performance, enabling efficient on-device AI inferencing and accelerating productivity tasks. Whether you're working with AI-enhanced creative tools, data analysis, or running machine learning models, the Z1 Tower delivers the compute power you need without relying on cloud services. Paired with integrated Intel Graphics, this system is ready for mainstream CAD, design, and visualisation workflows right out of the box.
Expandable and Future-Ready
The HP Z1 Tower is designed for growth. With tool-less chassis access, you can quickly add discrete GPUs (supports NVIDIA RTX, AMD Radeon RX, and Intel Arc graphics), install additional storage drives (two 3.5-inch HDD bays and multiple M.2 slots), and expand memory up to 128GB. Multiple PCIe slots provide room for specialised cards, making this workstation adaptable to evolving project demands.
Built to Last, Tested for Reliability
HP Z workstations undergo 120,000 hours of rigorous testing and meet military-standard durability requirements. The Z1 Tower features innovative thermal management with smart fan control and lattice-design venting to keep your system cool and quiet, even under heavy workloads. This is a workstation built to run mission-critical applications 24/7 with confidence.
Connectivity & I/O
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USB ports: 2 × USB Type-C 20Gbps, 4 × USB Type-A 10Gbps, additional USB Type-A ports
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Network: Intel I219-LM Gigabit Ethernet (vPro enabled)
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Wireless: Realtek Wi-Fi 6E RTL8852CE (2×2) and Bluetooth 5.3
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Audio: Realtek ALC3252 codec with universal headphone/microphone combo jack
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Expansion slots: 1 × M.2 2230 (WLAN), 3 × M.2 2280 (storage), 1 × PCIe 5 x16, 1 × PCIe 4 x16, 2 × PCIe 3 x1
Sustainable by Design
HP is committed to reducing environmental impact. The Z1 Tower contains 60% recycled plastics and 20% recycled steel, with 100% sustainably sourced outer box packaging. It is EPEAT Gold with Climate+ registered and ENERGY STAR certified, helping you meet corporate sustainability goals without compromising performance.
What's in the Box
- HP Z1 Tower G1i Desktop PC
- HP 125 v2 Wired Keyboard
- HP Wired 320M Mouse
- Power cable
- Documentation
Full Specifications
System
| Processor |
Intel Core Ultra 7 265 (1.8 GHz E-core base, 2.4 GHz P-core base, up to 4.6 GHz E-core Max Turbo, up to 5.2 GHz P-core Max Turbo, 30 MB L3 cache, 8 P-cores and 12 E-cores, 20 threads) |
| Chipset |
Intel Q870 |
| Memory |
16 GB DDR5-5600 MT/s (1 × 16 GB), expandable to 128 GB |
| Storage |
512 GB PCIe NVMe M.2 SSD |
| Graphics |
Integrated Intel Graphics (discrete GPUs optional) |
| Operating System |
Windows 11 Pro (64-bit) |
| Form Factor |
Tower |
Connectivity
| Network |
Intel I219-LM Gigabit Ethernet (vPro) |
| Wireless |
Realtek Wi-Fi 6E RTL8852CE (2×2), Bluetooth 5.3 |
| USB Type-C |
2 × USB Type-C 20Gbps |
| USB Type-A |
4 × USB Type-A 10Gbps (additional USB-A ports available) |
| Audio |
Realtek ALC3252 codec, universal headphone/microphone combo jack |
Expansion
| Internal Drive Bays |
Two 3.5-inch HDD, one slim optical drive bay |
| M.2 Slots |
1 × M.2 2230 (WLAN), 3 × M.2 2280 (storage) |
| PCIe Slots |
1 × PCIe 5 x16, 1 × PCIe 4 x16, 2 × PCIe 3 x1 |
Power & Environment
| Power Supply |
500 W, 80 PLUS Platinum certified |
| Acoustics (Idle) |
20.6 dB |
| Acoustics (Active) |
21.5 dB |
Physical & Warranty
| Warranty |
3 years manufacturer warranty (region-dependent) |
| Certifications |
EPEAT Gold with Climate+, ENERGY STAR, MIL-STD tested |
| Sustainability |
60% recycled plastics, 20% recycled steel, 100% sustainably sourced outer box packaging |
Specifications are sourced from the manufacturer product page and may be updated.
