Performance Core Ultra Office Workstation PC

Intel Core Ultra 9 285K Office Workstation – Built in the UK

The Performance Core Ultra Office Workstation PC is a high-performance Intel office workstation for demanding business software, heavy multitasking and large datasets.

If your day is spent in large spreadsheets, databases, document-heavy workflows and a dozen applications at once, this Core Ultra 9 285K office workstation is built to keep up. It uses the flagship 24-core Intel Core Ultra 9 285K, 96GB of DDR5 memory and a fast NVMe SSD, in a quiet-looking black Corsair 3000D AIRFLOW case that suits a professional office. It sits at the top of our office workstation range, with parts that are a clear step up from the systems below it.

The Performance Core Ultra Office Workstation PC is built on an Intel Core Ultra 9 285K processor with 24 cores and 24 threads on an Intel Z890 chipset. Graphics come from the processor’s integrated graphics. It has 96GB of Crucial Pro DDR5 5600MHz memory (2 x 48GB) and a 1TB WD Blue SN5100 M.2 PCIe 4.0 NVMe SSD. It ships with Microsoft Windows 11 Professional (genuine, pre-installed) and a 3-year parts and labour warranty.

Intel Core Ultra 9 285K processor

The Intel Core Ultra 9 285K has 24 cores (8 performance and 16 efficient) and 24 threads. The performance cores run at a 3.7GHz base clock and boost up to 5.7GHz, with 36MB of L3 cache. The ‘K’ in the name marks an unlocked, higher-power part that holds higher turbo speeds than the standard versions, and the Z890 board supports overclocking. In day-to-day office use this means large files open quickly, background tasks do not slow the window you are working in, and demanding business software has plenty of headroom.

96GB of DDR5 memory and a fast NVMe SSD

The 96GB of DDR5 5600MHz memory is fitted as a dual-channel 2 x 48GB kit. That is enough for very large spreadsheets and datasets, many browser tabs and documents open together, and virtual machines running alongside your normal applications. The board has four DIMM slots (two used) and supports up to 256GB, so there is room to grow.

The operating system and applications sit on a 1TB WD Blue SN5100 M.2 PCIe 4.0 NVMe SSD rated at up to 7100MB/s read and 6700MB/s write. Start-up, application launches and file opening are fast. The Z890 board has four M.2 slots (one used, three free) and four SATA 6Gb/s ports, and the case has mounts for two 3.5in and two 2.5in drives. You can add archive or backup storage without replacing anything.

Integrated graphics and multi-monitor output

This build uses the Intel integrated graphics in the processor, which is all most office work needs. The board provides a DisplayPort 2.1 output and a Thunderbolt 4 / USB4 Type-C output, and the system supports two monitors. That suits a dual-screen desk for spreadsheets, reference documents and video calls. If your software benefits from a dedicated graphics card, you can choose one in the configurator. The board has a PCIe 5.0 x16 slot for it.

Corsair 3000D AIRFLOW case and Thermalright cooling

The chassis is the Corsair 3000D AIRFLOW in black, a mid tower with a tempered glass side panel measuring 462mm deep, 230mm wide and 466mm high. Its airflow-focused design includes two pre-installed 120mm SP120 Elite fans, one at the front and one at the rear. The processor is cooled by a Thermalright Peerless Assassin 120 Mini dual-tower air cooler. Air cooling keeps the build simple, with no pump or radiator to maintain. Power comes from a Contour 750W ATX 3.1 non-modular PSU, which leaves plenty of room for added storage or a graphics card.

Connectivity and ports

Wi-Fi 7 and Bluetooth 5.4 are built in, alongside a Realtek 2.5Gb Ethernet port for fast wired networking. The rear panel has a Thunderbolt 4 / USB4 Type-C port and two 10Gbps Type-A ports. The front panel has two USB 3.2 Type-A ports and a headphone/microphone combo jack. Audio is Realtek ALC1220 7.1-channel HD Audio with S/PDIF. No keyboard or mouse is included, so you can pick your own from the accessories below.

Ideal for

• Professionals working with very large spreadsheets, databases and datasets
• Heavy multitaskers who keep many applications, documents and browser windows open at once
• Businesses that want Windows 11 Professional with BitLocker, Remote Desktop and domain join
• Users who run virtual machines alongside everyday office software
• Dual-monitor desks that need a fast, quiet-looking, upgradeable PC

For a high-performance Core Ultra 9 285K office workstation with 96GB of memory, fast NVMe storage, Wi-Fi 7 and Windows 11 Professional, the Performance Core Ultra Office Workstation PC is a well-balanced choice. It has the processing power and memory for demanding business software, and room to add storage or a graphics card later. You can change any part in the configurator to suit your workload.

Built to order and tested in the UK by Punch Technology, every system comes with a 3-year parts and labour warranty, backed by over 30 years of PC building experience. The estimated lead time for your configuration is shown when you order.

What is the Performance Core Ultra Office Workstation PC best for?

The Performance Core Ultra Office Workstation PC is primarily a top-tier office and productivity machine for work that outgrows a standard desktop. A 24-core processor and 96GB of memory suit people who keep large files, many applications and several documents open at the same time without waiting. As a Core Ultra 9 285K office workstation, it is aimed at work where processor power and memory capacity matter more than graphics.

Typical uses include data-heavy spreadsheet and database work, finance and administration roles with many windows open, and running virtual machines or remote sessions alongside everyday software. Windows 11 Professional makes it straightforward to manage in a business environment. It uses integrated graphics, so it is not aimed at graphics-intensive work. If that is your requirement, add a dedicated graphics card in the configurator.

Where does the Performance Core Ultra Office Workstation PC sit in the range?

It is the most capable system among its neighbours. One step down is the Punch SlimStation Ultra 7 Small Form Factor Workstation PC, which uses an Intel Core Ultra 7 265 with 32GB of DDR5 6000MHz memory in a compact chassis. Below that is the Compact Ryzen 8700G Workstation, built on an AMD Ryzen 7 8700G with 32GB of DDR5 6000MHz memory. Choose this Core Ultra 9 system when you want the 24-core processor, 96GB of memory and a full-size tower with room to expand.

Frequently Asked Questions

What software does the Performance Core Ultra Office Workstation PC support?

It runs any 64-bit Windows 11 business software, from accounting packages, databases and large spreadsheets to document, email, video conferencing and virtual machine software. The 24-core Core Ultra 9 285K and 96GB of DDR5 memory give plenty of headroom when several of these are open together. It uses integrated graphics. For graphics-intensive software, choose a dedicated graphics card in the configurator.

Why does this PC come with Windows 11 Professional?

Windows 11 Professional adds features that businesses rely on. These include BitLocker drive encryption, Remote Desktop so you can connect to the PC from elsewhere, and the ability to join a company domain for central management. It is supplied genuine and pre-installed.

How many monitors can the Performance Core Ultra Office Workstation PC run?

It supports two monitors from the built-in outputs, using the DisplayPort 2.1 output and the Thunderbolt 4 / USB4 Type-C output on the motherboard. That suits a dual-screen office setup. If you need more screens, you can choose a dedicated graphics card in the configurator.

Can I add more memory or storage later?

Yes. The motherboard has four DIMM slots (two used by the 2 x 48GB kit) and supports up to 256GB of memory. For storage there are three free M.2 slots alongside the WD Blue SN5100 SSD and four unused SATA 6Gb/s ports, and the case has mounts for two 3.5in and two 2.5in drives.

Who is this PC best suited for?

It is best suited to professionals and businesses who need a very fast office PC for demanding multitasking, large datasets and virtual machines. It also suits organisations that want Windows 11 Professional features such as BitLocker and domain join, and users who want a tower they can expand later.

Does it include Wi-Fi, and does it come with a keyboard and mouse?

Wi-Fi 7 and Bluetooth 5.4 are built in, along with a 2.5Gb Ethernet port for wired networking. No keyboard or mouse is included. You can add them from the accessories links on this page.