10 Best Power Supply Unit For Gaming Pc in The UK

Last updated on 06/05/2025

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ADMI Gaming PC • AMD Ryzen 7 5700X • Nvidia RTX 4060 Ti 8GB GDDR6 • 16GB RAM 3200MHz • 1TB SSD • MB B550 • 360mm AIO ARGB Liquid Cooler • 650W PSU • X= White Gaming Cube ARGB Case • Wifi • Windows 11

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Why We Love It

Powerful Ryzen 7 performance.
High-end RTX graphics.
Fast NVME storage.

Main Highlights

𝗖𝗣𝗨: AMD Ryzen 7 5700X - 4.60 GHz (Turbo) - 3.40 GHz (Base) CPU - 8 Core - 16 Threads - 32 MB Cache - Zen 3 Generation Ryzen chip with Overclocking, Multithreading, and Precision Boost 2 Technology
𝗛𝗶𝗴𝗵 𝗙𝗣𝗦 𝗚𝗿𝗮𝗽𝗵𝗶𝗰𝘀: This ADMI Gaming PC is powered with NVIDIA GeForce RTX 4060 Ti 8GB GDDR6 4K VR Ready Graphics, AI-accelerated gaming, Ray tracing and DLSS 3 you can play any game with high FPS and ultra settings!
𝗣𝗿𝗲𝗺𝗶𝘂𝗺 𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗖𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀: Asus Strix B550-A Motherboard, 16GB 3200MHz DDR4 RAM , 1TB NVME SSD Drive, AIO 360mm RGB Liquid Coolor, WiFi Ready, 650W Bronze Rated PSU.
𝗣𝗿𝗲𝗺𝗶𝘂𝗺 𝗔𝗥𝗚𝗕 𝗚𝗮𝗺𝗶𝗻𝗴 𝗖𝗮𝘀𝗲: Embrase and show off your Gaming PC components with the X= Gaming Cube made of 2 x Tempered Glass Panels, 4 x ARGB Case Fans, 3 x ARGB CPU Radiator Fans, 2 x USB 3.0, 1 x USB 3.1, RGB Controller
𝗧𝗿𝘂𝘀𝘁𝗲𝗱 𝗕𝗿𝗶𝘁𝗶𝘀𝗵 𝗕𝗿𝗮𝗻𝗱 𝘄𝗶𝘁𝗵 𝟯-𝗬𝗲𝗮𝗿 𝗪𝗮𝗿𝗿𝗮𝗻𝘁𝘆: As a trusted British brand, we offer a 3-year warranty for quality and reliability. You can count on us for great customer support and long-term peace of mind with your Gaming PC Purchases.

MSI MEG Ai1600T PCIE5 Power Supply Unit, 1600W, 80 PLUS Titanium, ATX 3.1, PCIe 5.1 GPU Support, Dual-native 12V-2x6, cables with Dual-color 12V-2x6 connectors, ATX PSU, Braided Cable

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Why We Love It

Exceptional energy efficiency guaranteed.
Powerful support for high-end GPUs.
Quiet operation for uninterrupted gaming.

Main Highlights

80 PLUS TITANIUM CERTIFIED – With 80 PLUS Titanium certification (up to 94% efficiency), this PSU is ideal for powering hardware with high energy demands, such as high-end GPUs and CPUs.
DUAL-NATVIE 12V-2x6 CONNECTOR - Equipped with dual-native 12V-2x6 PCIe connectors, it can deliver up to 600W of power per connector to support PCIe 5.1 GPUs.
DURABLE DESIGN - This power supply is equipped with a 135 mm Double-ball bearing fan, designed to enhance durability and extend the fan's lifespan. The braided modular cables feature premium copper alloy connectors to ensure reliable performance.
SERVER-GRADE SiC MOSFET - The first power supply with server-grade SiC materials are used in the interleaved PFC MOSFETs to enhance overall efficiency and keep temperatures low simultaneously.
LOW-NOISE OPERATION - The average sound level keeping noise levels as low as a peaceful nigh, and it also features a Zero Fan Mode for an even quieter operation. Support for Gaming Intelligence – MSI's exclusive software enables real-time monitoring,

Tecnoware Power Systems

Tecnoware Power Systems - 2000VA Uninterruptible Power Supply, Blackout Protection for Gaming PC & Consoles, AVR Stabilizer, USB & RJ11/RJ45 Ports, Single, IEC

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Why We Love It

Ultimate gaming protection assured.
Reliable power stability guaranteed.
Quick and easy setup.

Main Highlights

Maximum protection for professional setups and high-level gaming: The Tecnoware UPS EXA PLUS 2000 is designed to ensure power continuity and advanced protection during blackouts and voltage fluctuations, it is the ideal choice for gaming PCs, graphic workstations, Macs and systems with active PFC power supplies, perfect for configurations with power supplies up to 1200W or to protect 2 PCs equipped with 550W PSUs each, it guarantees reliability even in the most demanding setups
High autonomy to work or play without interruptions: In the event of a power outage, the UPS provides up to 25 minutes of runtime for a gaming PC and up to 60 minutes for a console, giving you all the time you need to save your work, finish a session or safely shut down your devices
Stable voltage with AVR Plus technology: The AVR Plus stabilization feature provides continuous protection from overloads, short circuits and voltage spikes, keeping output power consistently stable, a safety guarantee for valuable electronic devices
Simple installation and compact size: With 8 standard IEC output sockets, the device is ready to use in just a few seconds, its compact dimensions make it suitable even for small spaces, whether at home or in the office
Silent, perfect even for sensitive environments: Thanks to SILENT technology, the UPS operates completely silently, ideal for professional settings, study rooms or gaming spaces
Total control with included software: The bundled software allows you to easily manage and monitor the UPS from Windows, Mac, Unix and Linux, you can configure automatic power on/off and monitor the status of connected devices
Convenient front USB ports for your mobile devices:The two front USB ports allow you to charge smartphones, tablets or other 5V devices, offering added convenience for everyday use

MSI MAG A650BN Power Supply Unit, UK Plug - 650W, 80 Plus Bronze Certified, ATX PSU, 12V Single-Rail, DC-to-DC Circuit, 120mm Fan - 5 Year Warranty

17% OffFree Shipping

Why We Love It

Efficient energy and thermal reduction.
Stable output under heavy load.
Quiet self-regulating cooling system.

Main Highlights

80 PLUS BRONZE CERTIFIED - An efficient power supply reduces system energy consumption & thermal loading; An 80 PLUS Bronze rating (up to 87%) is a solid foundation for standard hardware, graphics cards, and most software demands
12V SINGLE-RAIL DESIGN - A 12V single-rail design delivers stable output currents under heavy loading
DC-TO-DC CIRCUIT - A core DC-to-DC circuit design reduces output voltage instability to PC components
QUIET COOLING - A 120mm sleeve bearing fan (FDB) provides self-regulating cooling, while generating very little noise during operation
HARDY DESIGN - An active PFC design ensures reliable output (OCP, OVP, OPP, OTP, SCP protections); Includes an MSI 5-year limited warranty

GameMax 700W Rampage Power Supply (No Power Cable inc.), Non-Modular, APFC, Japanese Tk Main Capacitor, 80 Plus Bronze, 88% Efficiency, 14cm Cooling Fan, Real Power Gaming | Black

5% Off

Why We Love It

High efficiency at 88% load.
Includes reliable Japanese TK capacitor.
Ensures silent yet effective cooling.

Main Highlights

80 Plus Bronze Certification - The Rampage range are 80 Plus Bronze 230V certified achieving an efficiency of up to 88% at a load of 50%.
Japanese TK Main Capacitor - With a Japanese TK main capacitor included in the Rampage delivers a reliable life expectancy and quality assurance.
Power - The Rampage Range offers some Real Gaming Power, with a single 12V rail for high compatibility and extreme high current output. The 80 Plus 230V EU Bronze efficiency enables your high end components to work to their full potential.
14cm Cooling Fan - An ultra silent 14cm cooling fan ensures the Rampage delivers not only silent cooling but cooling that is effective guaranteeing a PSU that will run safely, smoothly and will last the distance.
Flat Black Cables - Improve your aesthetics flat black cables have been used to enable builders to easily manage and save space improving airflow and creating a great looking PC.

CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - UK - Black

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Why We Love It

Highly efficient with lower costs.
Consistent full-rated continuous power.
Quiet yet effective cooling.

Main Highlights

80 PLUS Bronze Certified: Provides up to 88% operational efficiency, generating less heat and lowering your energy costs.
Full Continuous Power: CORSAIR CX Series power supplies are guaranteed to deliver their full rated wattage of continuous power.
Low-Noise Cooling: A 120mm thermally controlled low-noise cooling fan only spins at high speed when your power supply is under heavy stress, slowing down for quieter operation at lower loads.
Compact Casing: 125mm length ensures an easy fit in almost all modern PC cases.
Black Sleeving and Casing: Black sleeved cables and a black powder-coated casing seamlessly fits your PC’s style.

JUSTOP Black 750W PSU, Switching Power Supply, Computer Desktop PC ATX 120mm Fan 8-Pin 12V, 6+2 Pin PCI-E, 6x SATA

Why We Love It

Powerful cooling for desktop PCs.
Enhanced stability and safety.
Multiple certification guarantees reliability.

Main Highlights

750W ATX Power Supply With 120mm Cooling Fan For Desktop PCs
Single 8-pin (4+4 pin) 12v rail provides more stability and safer power output.
Power Factor Control (PFC). Over voltage protection, Over power protection, short circuit protection and thermal overload cut-off protection.
Safety agency approval: UKCA / CE / FCC / UL and TUV Electrical Safety Certified
Connectors - 1x 24-Pin (20+4); 1x 8-Pin 12V (4+4); 6x SATA, 1x 4-Pin Molex; 1x 8-Pn PCI-E (6+2)

Corsair RM850e (2023) Fully Modular Low-Noise ATX Power Supply - ATX 3.0 & PCIe 5.0 Compliant - 105°C-Rated Capacitors - 80 PLUS Gold Efficiency - Modern Standby Support - Black

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Why We Love It

Modular design for targeted cable use.
Compliant and supports PCIe Gen 5.
Quick wake-from-sleep times.

Main Highlights

Fully Modular PSU: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
Intel ATX 3.0 Certified: Compliant with the ATX 3.0 power standard, supporting the PCIe Gen 5 platform and resisting transient power spikes.
Keeps Quiet: A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
105°C-Rated Capacitors: Delivers steady, reliable power and dependable electrical performance.
Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.

NZXT C1200 PSU - 1200 Watt Gaming PC Power Supply – ATX 3.0 – PCIe 5.0 12VHPWR Connector – 80 Plus Gold Efficiency – Fully Modular – Zero Fan Mode – Black Sleeved Cables – 10 Year Warranty – Black

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Why We Love It

Next-gen power for premium performance.
Enhanced efficiency extends PC lifespan.
Silent operation for quiet gaming.

Main Highlights

NEXT-GEN POWER: Pumps up to 600 watts of power to PCIe 5.0 GPUs—like the NVIDIA GeForce RTX 4090—over a single 16-pin connector.
FUTURE-PROOF DESIGN: Built to withstand massive power spikes from next-gen GPUs by supplying up to 2x total power and 3x GPU power when needed.
ELITE EFFICIENCY: With over 90% efficiency at 50% load, the C1200 reduces energy usage to lower monthly costs and extend your PC's lifespan. No wasted energy—it only draws the power your system needs.
SILENT OPERATION: The 135mm PWM fan with a fluid dynamic bearing runs quietly, even at high loads. Zero Fan Mode shuts it off for total silence when under 40% load.
HIGH-QUALITY COMPONENTS: Constructed with all Japanese 105°C-rated capacitors for the highest standard in performance, reliability, and longevity.

LC-POWER 850 W Full Modular Power Supply Unit 80 Plus Platinum 135 mm Fan ATX PSU,92% Efficiency,Running Quiet,5xPCI-Express,for Gaming Computer,System Upgrades

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Why We Love It

High performance, low noise.
Fully modular for convenience.
Robust industrial protection features.

Main Highlights

【Function upgrade】Support graphics card PCI-E 5.0, 12+4-Pin, compatible with PCI-E 6, 6+2-Pin. The function utilization rate reaches 92%. The fan reaches 135mm, and the 135mm fan adopts magnetic suspension bearings and a custom-designed rotor, which has high performance, low noise and excellent reliability.
【Fully Modular】So you only need to connect the cables you need for your system, ATX Version: 3.0, Full Range: 100-220V
【Industrial protection】:850W power supply with (OPP) over-power protection, (OVP) over-voltage protection, (SCP) short-circuit protection, (OCP) over-current protection (UVP) under-voltage protection (OT)P over-temperature protectionw
【Connectors】:The Gaming power supply with 20+4-Pin Mainboard,4+4-Pin Mainboard 12V(8pin EPS)，4 Pin Mainboard 12V,PCI-Express 6+2-Pin,PCI-Express 5.0 12+4-Pin, STAT,PATA. the power supply allows for easy customization and hassle-free cable management
【Supports standby sleep mode】: Supports Modern Standby sleep mode for extremely fast wake-from-sleep times and better low-load efficiency.standby:< 0.5W

8.8

Excellent

We scanned 979 products

We reviewed these offers relevant to the Power Supply Unit For Gaming Pc within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like ADMI, MSI Computers, Tecnoware Power Systems, MSI, GameMax, Corsair, JUSTOP, NZXT, LC-Power, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Power Supply Unit For Gaming Pc in the market, we considered we took a deep dive into 4896 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is ADMI Gaming PC • AMD Ryzen 7 5700X • Nvidia RTX 4060 Ti 8GB GDDR6 • 16GB RAM 3200MHz • 1TB SSD • MB B550 • 360mm AIO ARGB Liquid Cooler • 650W PSU • X= White Gaming Cube ARGB Case • Wifi • Windows 11. We love many things about this product by ADMI. What sets it apart from the competition is Powerful Ryzen 7 performance, High-end RTX graphics, Fast NVME storage.
The best value product for most shoppers and where user satisfaction is continuously the highest is MSI MEG Ai1600T PCIE5 Power Supply Unit, 1600W, 80 PLUS Titanium, ATX 3.1, PCIe 5.1 GPU Support, Dual-native 12V-2x6, cables with Dual-color 12V-2x6 connectors, ATX PSU, Braided Cable by MSI Computers based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Power Supply Unit For Gaming Pc and the best cost-to-value ratio is MSI MAG A650BN Power Supply Unit, UK Plug - 650W, 80 Plus Bronze Certified, ATX PSU, 12V Single-Rail, DC-to-DC Circuit, 120mm Fan - 5 Year Warrantyat MSI with a 17% discount.
Our list of the best Power Supply Unit For Gaming Pc is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Power Supply Unit For Gaming Pc in The UK

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We scanned 979 products

We concluded that: