White RTX 5090 Gaming PC – Core Ultra 9 285K – Built in the UK
The Summit 285K is a flagship white 4K gaming PC for enthusiast gamers and demanding content creators.
The Summit 285K is the most powerful white RTX 5090 gaming PC Punch Technology builds, combining the RTX 5090 with Intel’s Core Ultra 9 285K and a fully unified all-white Phanteks chassis and cooling ecosystem.
The Intel Core Ultra 9 285K delivers 24 cores of Arrow Lake performance with a maximum turbo of 5.7GHz, paired with the GeForce RTX 5090 32GB GDDR7 and 64GB of Kingston Fury Beast DDR5 running at 6000MHz CL30.
The Phanteks NV7 D-RGB White full tower houses the entire system, with the Phanteks case, Phanteks Glacier One D30 X2 360 AIO and Phanteks D30 fan kit all finished in white. The Summit 285K white RTX 5090 gaming PC is a system without compromise, built for buyers who want the absolute best available.
The Summit 285K is built on an Intel Core Ultra 9 285K processor with 24 cores and 24 threads (8 performance and 16 efficient cores), an NVIDIA GeForce RTX 5090 graphics card with 32GB of GDDR7, 64GB of DDR5 6000MHz memory and a 1TB Crucial T705 PCIe 5.0 NVMe SSD. It is cooled by a Phanteks Glacier One D30 X2 360mm AIO and powered by a Lian Li SX 1200W 80 Plus Platinum PSU. It is supplied with genuine, pre-installed Microsoft Windows 11 Home and a 3-year parts and labour warranty.
1TB PCIe Gen 5 NVMe Storage
The 1TB Crucial T705 is a PCIe 5.0 NVMe SSD with sequential read speeds of up to 13,600MB/s and write speeds of up to 10,200MB/s. The primary M.2 slot on the Gigabyte Z890 AORUS ELITE WIFI7 ICE runs at PCIe 5.0 x4, so the drive works at its full rated speed. 1TB of capacity gives you space for a large game library, creative project files or applications, and three further M.2 slots are free for additional drives.
NVIDIA GeForce RTX 5090 – Flagship Graphics with 32GB GDDR7
The GeForce RTX 5090 is the flagship of NVIDIA’s Blackwell generation, with 21,760 cores and 32GB of GDDR7 memory. It is built for 4K gaming at ultra settings, and the 32GB frame buffer gives creative workloads plenty of video memory.
The RTX 5090 draws 575W, which the 1200W Lian Li SX 80 Plus Platinum ATX 3.1 PSU handles comfortably. Display output covers three DisplayPort 2.1b and one HDMI 2.1b for up to four monitors at once (layout may vary by card brand).
Phanteks NV7 – Unified Full-Tower Ecosystem
The Phanteks NV7 D-RGB White is a full-tower chassis with tempered glass on the front and side, giving an unobstructed view of the entire build. It measures 532mm deep, 253mm wide and 586mm tall, with room for the 360mm radiator and the full-size RTX 5090.
The Phanteks Glacier One D30 X2 360 White AIO cools the Core Ultra 9 285K. The case has no fans pre-installed, so airflow comes from the Phanteks D30 six-fan white kit (four reverse and two forward) alongside the 360mm radiator. Because the case, cooler and fans are all Phanteks D30 parts, the lighting and styling match throughout.
Thunderbolt 4, Wi-Fi 7 and Z890 Connectivity
The Gigabyte Z890 AORUS ELITE WIFI7 ICE provides a feature-rich Z890 platform for this white RTX 5090 gaming PC. The rear I/O includes a Thunderbolt 4 / USB4 Type-C port, a Type-C 10Gbps port and two Type-A 10Gbps ports. The front panel adds a USB-C Gen2 port, two USB 3.0 ports and headphone and microphone jacks. Wireless is built-in Wi-Fi 7 and Bluetooth 5.4, alongside a Realtek 2.5GbE wired LAN port, and the Realtek ALC1220 codec delivers 7.1 HD audio. The Z890 chipset supports CPU overclocking of the unlocked 285K, and the Lian Li SX 1200W is a fully modular, 80 Plus Platinum ATX 3.1 power supply.
Ideal for
- 4K gaming at ultra settings with no GPU compromise
- Content creators using Premiere Pro, DaVinci Resolve and Blender
- Professional work that needs 24 CPU cores and 64GB of DDR5
- Buyers who want a matching white Phanteks case, cooler and fan ecosystem
- The definitive white PC showcase build
The Summit 285K is the right white RTX 5090 gaming PC for buyers who want the very best in gaming performance, creative workstation capability and visual presentation. With a 24-core Core Ultra 9 285K, a 32GB RTX 5090, PCIe 5.0 storage, 64GB of DDR5 and a matching white Phanteks chassis, cooler and fan set, it is the flagship of our white gaming range.
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 Ultra 9 285K 3.7/5.7GHz 24 Core, 24 Thread CPU (LGA1851) |
| Cores / Threads | 24 Cores (8P + 16E) / 24 Threads |
| Frequency | P-core Base 3.7GHz / Max Turbo 5.7GHz |
| Cache | 36MB L3 |
| Integrated Graphics | Intel Graphics |
| CPU Cooler | Phanteks Glacier One D30 X2 360 White 360mm AIO CPU Cooler (aio liquid cooler) |
| Memory & Storage | |
| RAM | 64GB DDR5 6000MHz CL30 |
| Configuration | Dual Channel – 2 x 32GB |
| Max Supported | 256 GB (4 x DIMM slots, 2 used) |
| Primary SSD | 1TB Crucial T705 M.2 PCIe 5.0 NVMe SSD (13600MB/s R, 10200MB/s W) – operating system and applications |
| Optical Drive | None |
| Graphics & Display | |
| GPU | NVIDIA GeForce RTX 5090 32GB GDDR7 GPU (21760 cores, 575 W) |
| Display Outputs | 3 x DisplayPort 2.1b, 1 x HDMI 2.1b on the graphics card (up to 4 x monitors; layout may vary by card brand) |
| Motherboard & Connectivity | |
| Motherboard | Gigabyte Z890 AORUS ELITE WIFI7 ICE ATX DDR5 Motherboard (ATX) |
| Chipset | Intel Z890 Express |
| Thunderbolt / USB4 | 1 x Thunderbolt 4 / USB4 Type-C |
| Wired Networking | 2.5GbE (Realtek) LAN |
| Wireless | Wi-Fi 7 – Built-in |
| Bluetooth | Bluetooth 5.4 (built-in) |
| Audio | High Definition Audio 7.1 (Realtek ALC1220 7.1) |
| Rear & Front I/O (Input/Output) | |
| Rear Ports | 1 x Thunderbolt 4 / USB4 Type-C, 1 x Type-C 10Gbps, 2 x Type-A 10Gbps, Up to 5 ports, Up to 8 ports, 1 x RJ-45 2.5GbE Ethernet Port, plus the graphics card's 3 x DisplayPort 2.1b, 1 x HDMI 2.1b |
| Front Ports | 1 x USB-C Gen2, 2 x USB 3.0, 1 x headphone jack, 1 x microphone jack |
| Motherboard Video | 1 x Thunderbolt 4 / USB4 Type-C, 1 x DisplayPort 2.1, 1 x Front-panel HDMI |
| Expansion & Internal Slots | |
| PCIe Slots | 1 x PCIe 5.0 x16 (used by the NVIDIA GeForce RTX 5090 32GB GDDR7 GPU), 1 x PCIe 4.0 x4, 1 x PCIe 4.0 x4 |
| Storage Expansion | 4 x M.2 (PCIe 5.0 x4, PCIe 4.0 x4, PCIe 4.0 x4, PCIe 4.0 x4; 1 used, 3 free), 4 x SATA 6Gb/s (0 used), case mounts for 2 x 3.5" and 2 x 2.5" drives |
| Power, Case & Cooling | |
| Power Supply | Lian Li SX 1200W 80 Plus Platinum Fully Modular ATX 3.1 PSU, White (80 PLUS Platinum, ATX 3.1, Fully modular) |
| Chassis | Phanteks NV7 D-RGB White (Full tower, Tempered glass (front and side)) |
| Fans | None pre-installed, plus 1 x Phanteks D30 6 Kit 4 x Reverse and 2 x Forward D30 White Fan |
| Liquid Cooling | Phanteks Glacier One D30 X2 360 White 360mm AIO CPU Cooler (360 mm radiator) |
| Dimensions | 532mm (D) x 253mm (W) x 586mm (H) |
| Software & Support | |
| Operating System | Microsoft Windows® 11 Home (Advanced 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 Summit 285K best for?
The Summit 285K is a white RTX 5090 gaming PC built primarily for 4K gaming at ultra settings, and a high-end creator workstation as well. The RTX 5090’s 21,760 cores and 32GB of GDDR7 are aimed squarely at demanding titles such as Cyberpunk 2077, Black Myth: Wukong, Alan Wake 2, Assassin’s Creed Shadows, Indiana Jones and the Great Circle, Ghost of Tsushima, Red Dead Redemption 2 and Microsoft Flight Simulator 2024. Fast-paced games such as Marvel Rivals and Helldivers 2 are well within its reach.
The Core Ultra 9 285K’s 24 cores with a 5.7GHz boost, 64GB of DDR5 6000MHz CL30 and the RTX 5090 make the Summit 285K equally suited to professional workloads. Adobe Premiere Pro (4K and 8K), DaVinci Resolve, Adobe After Effects, Blender GPU rendering, Unreal Engine 5, HandBrake and OBS Studio at high-bitrate settings all suit this specification. The 1TB Crucial T705 at up to 13,600MB/s provides the storage throughput that large creative projects demand.
Where does the Summit 285K sit in the range?
The Summit 285K is the step up for buyers who want an RTX 5090 with 32GB of video memory, DDR5 memory and PCIe 5.0 storage in a white build. The Titanium R Ryzen Gaming PC is a lower-priced option built on an AMD Ryzen 7 5800X with an RTX 5070 Ti 16GB, 32GB of DDR4 3200MHz and a 1TB PCIe 4.0 NVMe SSD. Further down, the Streaming PC – Ryzen 7 8700F, RTX 5060 Ti pairs an AMD Ryzen 7 8700F with an RTX 5060 Ti 8GB and 32GB of DDR5 5600MHz.
Frequently Asked Questions
What games and software can the Summit 285K run?
The Summit 285K is a white RTX 5090 gaming PC aimed at 4K ultra settings in current games, including Cyberpunk 2077, Black Myth: Wukong, Alan Wake 2, Assassin’s Creed Shadows, Indiana Jones and the Great Circle, Ghost of Tsushima, Red Dead Redemption 2, Elden Ring, Marvel Rivals, Helldivers 2 and Microsoft Flight Simulator 2024. For professional workloads it suits Adobe Premiere Pro, DaVinci Resolve, Blender, Adobe After Effects, Unreal Engine 5, HandBrake and OBS Studio, with plenty of CPU and GPU headroom.
What is the difference between the RTX 5090 and the RTX 5080?
The RTX 5090 in the Summit 285K has 21,760 cores and 32GB of GDDR7, double the 16GB on the RTX 5080. The extra video memory and compute suit 4K ultra gaming and heavy creative work such as grading in DaVinci Resolve and rendering in Blender. It draws 575W, which is why the Summit 285K has a 1200W Lian Li SX 80 Plus Platinum ATX 3.1 PSU.
Can I upgrade the Summit 285K later?
Yes. The Gigabyte Z890 AORUS ELITE WIFI7 ICE has three free M.2 slots and four unused SATA 6Gb/s ports, and the case has mounts for two 3.5″ and two 2.5″ drives. The board has four DIMM slots with two used, supporting up to 256GB of memory, so the 64GB kit can be expanded. The RTX 5090 occupies the PCIe 5.0 x16 slot, and two PCIe 4.0 x4 slots are free for add-in cards.
Does the Summit 285K come with a keyboard and mouse?
No keyboard or mouse is included. This lets you choose peripherals that suit you without paying for items you may already own. At this level our team are happy to advise on compatible high-end white peripherals and 4K monitors to complement the Summit 285K.
Who is this PC best suited for?
The Summit 285K is best suited to buyers who want Punch Technology’s most capable white system without compromise. That includes enthusiast gamers targeting 4K ultra settings and professional content creators who need 24 CPU cores and 64GB of DDR5 alongside flagship GPU performance. It also suits anyone who wants a matching all-white showcase build.
Can I change the parts in the Summit 285K?
Yes. The Summit 285K is built to order, and you can change parts such as storage, memory or the operating system in the configurator. The estimated lead time for your configuration is shown when you order. For a bespoke build, call our team on 0151 317 9860, use live chat or send an enquiry through the website.
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