Intel Core i7-12700K Productivity PC – Built in the UK
The Custom i7-12700K Productivity PC is a 12-core professional workstation for CAD, multi-monitor working, and demanding productivity software.
The Custom i7-12700K Productivity PC is a professional Intel Core i7-12700K productivity PC built for demanding office and professional workloads, from CAD and design to heavy multitasking and multi-monitor working. Its twelve-core, twenty-thread Intel Core i7-12700KF powers through documents, large datasets, professional applications and background tasks without slowing down, with fast DDR5 memory and NVMe storage keeping everything responsive.
Paired with a professional NVIDIA RTX A400 graphics card and finished in a quiet, sound-dampened black chassis, this Intel Core i7-12700K productivity PC is built to sit in a professional workspace and get through serious work quietly and reliably.
Fast 2TB PCIe 4.0 NVMe Storage
Windows 11 Professional, applications and files all load from a 2TB NVMe M.2 solid-state drive rated up to 6000MB/s read and 5000MB/s write, running at full PCIe 4.0 speed for fast start-up, quick application launches and responsive access to large files and datasets. The ASUS motherboard has three M.2 slots and four SATA ports in total, so there is generous room to add more fast storage or archive drives as your projects grow. The whole system is covered by a 3-year warranty.
NVIDIA RTX A400 – Certified Professional Graphics
Graphics are handled by the NVIDIA RTX A400 4GB, a professional workstation card built on NVIDIA’s Ampere architecture. NVIDIA RTX professional cards are certified by leading software vendors for a broad range of professional applications, including CAD and design tools, giving stable, reliable performance where it matters. The A400’s four Mini-DisplayPort outputs drive up to four high-resolution displays, making it ideal for multi-monitor CAD, design and data workflows.
With 4GB of GDDR6 memory, the RTX A400 is well suited to 2D and 3D CAD, professional visualization and multi-display productivity. For heavy 3D rendering, large assemblies or GPU-compute workloads that need more memory, a workstation with a higher-tier professional card would be the better choice.
Intel Core i7-12700KF – 12 Cores for Professional Work
At the heart of the system is the twelve-core Intel Core i7-12700KF (the F variant, with graphics provided by the dedicated RTX A400), boosting to 5.0GHz. Its eight performance and four efficiency cores make light work of CPU-intensive professional tasks such as CAD computation, data analysis, compilation and heavy multitasking, while a Thermalright Assassin King 120 SE air cooler keeps it running cool and quiet under sustained load.
Be Quiet! Pure Base 600 – Quiet Black Chassis
The Custom i7-12700K Productivity PC is built in the Be Quiet! Pure Base 600 in black, a refined steel chassis designed around silent operation. Sound-insulating material on the top, front and side panels, together with two quiet Pure Wings 2 fans and a built-in fan controller, keeps noise to a minimum, which matters in an office or shared professional environment. The clean, understated design with no RGB lighting suits a professional workspace, and there is generous room inside for additional drives and cooling.
2.5G LAN, Wi-Fi 6, Bluetooth & 7.1 Audio
Connectivity comes from the ASUS TUF Gaming B760-PLUS WIFI motherboard. Wired networking runs over 2.5G Ethernet for fast, stable access to network storage and professional resources, while built-in Wi-Fi 6 and Bluetooth 5.2 cover wireless networking and accessories. A range of USB ports, including rear USB 3.2 Gen 2 and USB-C, makes connecting professional peripherals, external drives and docks straightforward, and the board provides 7.1-channel high-definition audio.
Ideal for
- CAD and design work in certified professional applications
- Multi-monitor productivity and data-heavy workflows
- Heavy multitasking across professional software
- Business, engineering and professional workstation use
- A quiet, understated professional workspace
With twelve cores, professional certified graphics, fast DDR5 and NVMe storage and a quiet chassis, the Custom i7-12700K Productivity PC is a dependable Intel Core i7-12700K productivity PC for professionals who need strong, reliable performance for CAD, multi-monitor work and demanding productivity software. It leaves clear room to add memory and storage as requirements grow.
Built and tested in the UK by Punch Technology, every system comes with a 3-year parts and labour warranty and next‑day delivery to UK mainland addresses, backed by over 30 years of PC building experience and our status as an AMD Elite System Builder.
Full Specification
| Processor | |
| CPU | Intel Core i7-12700KF |
| Cores / Threads | 12 Cores (8P + 4E) / 20 Threads |
| Frequency | P-core Base 3.6GHz / Max Turbo 5.0GHz |
| Cache | 12MB L2 / 25MB L3 |
| CPU Cooler | Thermalright Assassin King 120 SE (air-cooled, rated to 200W) |
| Memory & Storage | |
| RAM | 16GB DDR5 5600MHz (Crucial) |
| Configuration | Dual Channel – 2 x 8GB |
| Max Supported | 192GB (4 x DIMM slots, 2 used) |
| Primary SSD | 2TB NVMe M.2 SSD (PCIe 4.0, up to 6000MB/s Read / 5000MB/s Write) |
| Secondary Drive | None |
| Optical Drive | None |
| Graphics & Display | |
| GPU | NVIDIA RTX A400 4GB GDDR6 (Professional / Workstation) |
| Display Outputs | 4 x Mini-DisplayPort 1.4a (up to 4 monitors, up to 5K each) |
| Motherboard & Connectivity | |
| Motherboard | ASUS TUF Gaming B760-PLUS WIFI DDR5 (ATX) |
| Chipset | Intel B760 |
| Wired Networking | 2.5G Ethernet (Realtek 2.5GbE) |
| Wireless | Wi-Fi 6 (802.11ax) – Built-in, Dual-band (2.4 / 5GHz) |
| Bluetooth | Bluetooth 5.2 |
| Audio | 7.1 HD Audio (Realtek) |
| Rear & Front I/O (Input/Output) | |
| Rear Ports | 1 x USB 3.2 Gen 2×2 Type-C, 1 x USB 3.2 Gen 2 Type-A, 3 x USB 3.2 Gen 1, 1 x USB 2.0, RJ-45 2.5G LAN, Wi-Fi antenna, audio jacks + optical S/PDIF |
| Front/Top Case Ports | 2 x USB 3.0, HD Audio (headphone + mic) |
| Motherboard Video (Disabled) | HDMI & DisplayPort – disabled (Core i7-12700KF has no integrated graphics; use the RTX A400 outputs) |
| Expansion & Internal Slots | |
| PCIe Slots | 1 x PCIe 5.0 x16 (GPU installed), 1 x PCIe 3.0 x16 @x4 (free), 2 x PCIe 3.0 x1 (free) |
| Storage Expansion | 3 x M.2 (1 used PCIe 4.0, 2 free), 4 x SATA 6Gb/s (free) |
| Power, Case & Cooling | |
| Power Supply | Contour 650W High Efficiency ATX |
| Chassis | Be Quiet! Pure Base 600 ATX Mid-Tower – Black |
| Fans | 2 x Pure Wings 2 (140mm front + 120mm rear) |
| Liquid Cooling | None (air-cooled – Thermalright Assassin King 120 SE) |
| Dimensions | 49.2 x 22.0 x 47.0 cm (L x W x H) |
| Software & Support | |
| Operating System | Microsoft Windows 11 Professional 64-bit (genuine, pre-installed) |
| Input Devices | No keyboard or mouse included |
| Warranty Cover | 3 Years, Parts & Labour |
| First Year | Free returns on warranty claims |




What is the Custom i7-12700K Productivity PC best for?
The Custom i7-12700K Productivity PC is primarily a professional productivity workstation, built for demanding office, design and technical work. Its twelve-core Intel Core i7-12700KF handles CPU-intensive professional applications with ease, from CAD tools such as AutoCAD, Revit and 2D/3D design software to large spreadsheets, data analysis, development environments and heavy multitasking. The professional RTX A400 graphics card adds certified, stable performance and support for up to four high-resolution displays.
The certified NVIDIA RTX A400 is well suited to 2D and 3D CAD, professional visualization and multi-display productivity, and its four Mini-DisplayPort outputs make it a natural fit for finance, design and control-room setups that need several monitors. This is a productivity and entry-level CAD workstation rather than a rendering or GPU-compute powerhouse; for heavy 3D rendering, very large assemblies, GPU rendering or AI workloads, a workstation with a higher-tier professional GPU and more memory would offer more headroom.
Where does the Custom i7-12700K Productivity PC sit in the range?
The Custom i7-12700K Productivity PC sits in the professional workstation part of the Punch Technology range, pairing a strong twelve-core processor with certified professional graphics for reliable everyday professional work. Users who need heavy GPU rendering, large 3D assemblies or more graphics memory can step up to a workstation with a higher-tier professional card, while those wanting more memory for large datasets can expand to up to 192GB. For CAD, multi-monitor productivity and demanding professional software, this system delivers dependable, quiet performance.
Frequently Asked Questions
What software does the Custom i7-12700K Productivity PC run?
The Custom i7-12700K Productivity PC runs the full range of professional productivity and design software. Its twelve-core processor handles CAD applications such as AutoCAD, Revit and Fusion 360, along with large spreadsheets, data analysis, development environments and office suites like Microsoft 365. The professional NVIDIA RTX A400 is certified by leading software vendors for stable performance in professional applications, and supports up to four high-resolution displays for multi-monitor working.
Can this PC run multiple monitors?
Yes. The NVIDIA RTX A400 has four Mini-DisplayPort outputs and can drive up to four high-resolution displays, up to 5K each, making the Custom i7-12700K Productivity PC well suited to multi-monitor CAD, design, finance and data workflows. Mini-DisplayPort adapters or cables may be needed to connect standard DisplayPort or HDMI monitors.
Is this PC good for 3D rendering and CAD?
The Custom i7-12700K Productivity PC is well suited to 2D and 3D CAD and professional visualization, with a certified NVIDIA RTX A400 graphics card and a strong twelve-core CPU. Its 4GB of professional graphics memory is ideal for design and multi-display work, but heavy GPU-based 3D rendering, very large assemblies or GPU-compute tasks would benefit from a workstation with a higher-tier professional GPU and more memory.
Does this PC come with a keyboard and mouse?
No, the Custom i7-12700K Productivity PC is supplied as a desktop tower without a keyboard or mouse, so you can pair it with your own preferred peripherals. Windows 11 Professional is genuine and pre-installed, ready to set up on first boot.
Who is this PC best suited for?
The Custom i7-12700K Productivity PC is best suited to professionals who need strong, reliable performance for CAD, design, data work and demanding productivity software, along with multi-monitor support and a quiet chassis. Its twelve-core processor and certified professional graphics make it a dependable everyday workstation. Professionals doing heavy 3D rendering or GPU-compute work should consider a system with a higher-tier professional GPU.
Can this PC be configured with different components?
Yes. Like all Punch Technology systems the Custom i7-12700K Productivity PC is configurable, so memory, storage, the graphics card and other components can be adjusted to suit your workflow and budget before it is built. Every system is then assembled and tested in the UK before dispatch.










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