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 black solid steel Be Quiet! Pure Base 600 chassis, this Intel Core i7-12700K productivity PC is built to sit in a professional workspace and get through serious work reliably.
The Custom i7-12700K Productivity PC is built on an Intel Core i7-12700KF with 12 cores and 20 threads, an NVIDIA RTX A400 4GB graphics card, 16GB of DDR5 5600MHz memory and a 2TB WD Blue SN5100 PCIe 4.0 NVMe SSD. It comes with Microsoft Windows 11 Professional (genuine, pre-installed) and a 3-year parts and labour warranty.
Fast 2TB PCIe 4.0 NVMe Storage
Windows 11 Professional, applications and files all load from a 2TB WD Blue SN5100 NVMe M.2 solid-state drive rated up to 7100MB/s read and 6700MB/s write, running in a PCIe 4.0 x4 M.2 slot for fast start-up, quick application launches and responsive access to large files and datasets. The ASUS motherboard has three M.2 slots (two still free) and four SATA ports, 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 NVIDIA RTX workstation card. 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 monitors, 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, twenty-thread Intel Core i7-12700KF (the F variant, with graphics provided by the dedicated RTX A400), boosting to 5.0GHz. It makes 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 cool under sustained load.
Be Quiet! Pure Base 600 – Black Steel Chassis
The Custom i7-12700K Productivity PC is built in the Be Quiet! Pure Base 600 in black, a refined solid steel mid tower with a clean, understated design that suits an office or shared professional environment. One 120mm rear fan and one 140mm front fan are pre-installed, and inside there are mounts for three 3.5″ and eight 2.5″ drives, so there is generous room for additional storage.
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. The rear panel offers one 20Gbps USB Type-C port, one 10Gbps Type-A, three 5Gbps Type-A and one USB 2.0 port, with two USB 3.0 ports on the front, so connecting professional peripherals, external drives and docks is straightforward. The board also 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
- An understated professional workspace or shared office
With twelve cores, professional certified graphics, fast DDR5 and NVMe storage and a clean steel 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 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.
Full Specification
| Processor | |
| CPU | Intel Core i7-12700KF 3.6/5.0GHz 12 Core, 20 Thread CPU (LGA1700) |
| Cores / Threads | 12 Cores / 20 Threads |
| Frequency | Base 3.6GHz / Max Turbo 5.0GHz |
| Cache | 25MB L3 |
| Integrated Graphics | None (a dedicated graphics card is required) |
| CPU Cooler | Thermalright Assassin King 120 SE 200W CPU Air Cooler (tower air cooler, 148 mm) |
| Memory & Storage | |
| RAM | 16GB DDR5 5600MHz |
| Configuration | Dual Channel – 2 x 8GB |
| Max Supported | 192 GB (4 x DIMM slots, 2 used) |
| Primary SSD | 2TB WD Blue SN5100 M.2 PCIe 4.0 NVMe SSD (7100MB/s R, 6700MB/s W) – operating system and applications |
| Optical Drive | None |
| Graphics & Display | |
| GPU | NVIDIA RTX A400 4GB GDDR6 GPU (768 cores, 50 W) |
| Display Outputs | 4 x Mini DisplayPort 1.4a on the graphics card (up to 4 x monitors; layout may vary by card brand) |
| Motherboard & Connectivity | |
| Motherboard | ASUS TUF Gaming B760-PLUS WIFI ATX DDR5 Motherboard (ATX) |
| Chipset | Intel B760 |
| Wired Networking | 2.5GbE (Realtek) LAN |
| Wireless | Wi-Fi 6 – Built-in |
| Bluetooth | Bluetooth 5.2 (built-in) |
| Audio | High Definition Audio 7.1 (Realtek 7.1 HD Audio) |
| Rear & Front I/O (Input/Output) | |
| Rear Ports | 1 x Type-C 20Gbps, 1 x Type-A 10Gbps, 3 x Type-A 5Gbps, 1 x Type-A USB 2.0, 1 x RJ-45 2.5GbE Ethernet Port, plus the graphics card's 4 x Mini DisplayPort 1.4a |
| Front Ports | 2 x USB 3.0 Type-A, 1 x headphone jack, 1 x microphone jack |
| Motherboard Video (Disabled) | 1 x DisplayPort 1.4, 1 x HDMI 2.1 – not active. The Intel Core i7-12700KF has no integrated graphics, so all monitors connect to the graphics card. |
| Expansion & Internal Slots | |
| PCIe Slots | 1 x PCIe 5.0 x16 (used by the NVIDIA RTX A400 4GB GDDR6 GPU), 1 x PCIe 3.0 x16 (x4), 1 x PCIe 3.0 x1, 1 x PCIe 3.0 x1 |
| Storage Expansion | 3 x M.2 (PCIe 4.0 x4, PCIe 4.0 x4, PCIe 4.0 x4; 1 used, 2 free), 4 x SATA 6Gb/s (0 used), case mounts for 3 x 3.5" and 8 x 2.5" drives |
| Power, Case & Cooling | |
| Power Supply | Contour 650W ATX PSU (Not certified (~85% at 50% load), ATX 2.4, Non-modular) |
| Chassis | Be Quiet! Pure Base 600 Black (Mid tower, Solid steel) |
| Fans | 1 x 120mm rear, 1 x 140mm front (pre-installed) |
| Liquid Cooling | None (air-cooled – Thermalright Assassin King 120 SE 200W CPU Air Cooler) |
| Dimensions | 492mm (D) x 220mm (W) x 470mm (H) |
| Software & Support | |
| Operating System | Microsoft Windows® 11 Professional (Standard licence) (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 monitors.
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 above two more affordable workstations in the Punch Technology range. The Best Value PC for AutoCAD 2026 uses an Intel Core i5-14400F 10 core CPU with the same NVIDIA RTX A400 4GB, 16GB of DDR4 3200MHz memory and the same 2TB WD Blue SN5100 NVMe SSD. The Compact Ryzen 8700G Workstation is built around an AMD Ryzen 7 8700G 8 core CPU with 32GB of DDR5 6000MHz memory and a 1TB WD Blue SN5100 NVMe SSD. This system adds twelve cores, twenty threads and DDR5 memory alongside the RTX A400, and memory can expand to up to 192GB for larger datasets. 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.
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 monitors for multi-monitor working.
Can the Custom i7-12700K Productivity PC run four monitors?
Yes. The NVIDIA RTX A400 has four Mini-DisplayPort outputs and can drive up to four monitors, making the Custom i7-12700K Productivity PC well suited to multi-monitor CAD, design, finance and data workflows. The Intel Core i7-12700KF has no integrated graphics, so every monitor connects to the graphics card, and Mini-DisplayPort adapters or cables may be needed for 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, and adds business features such as BitLocker, Remote Desktop and domain join.
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 clean, understated 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 I configure this PC 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 built to order and tested in the UK, and the estimated lead time for your configuration is shown when you order.










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