Best 1000W PSUs

The 6 Best 1000W PSUs: Power Unleashed Picks

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Power supplies are one of the most important components in any gaming PC or high-performance workstation. For those building extremely powerful systems with multiple graphics cards or overclocked processors, a 1000W power supply or higher is often recommended to ensure adequate power delivery without risking instability. This wattage range caters to enthusiasts seeking maximum performance without compromise. However, with so many 1000W PSU models available, it can be difficult to distinguish the best from the rest. This guide examines some of the best 1000W PSUs on the market based on build quality, electrical performance, cooling, reliability and value. Keep reading to find out which 1000W PSUs are capable of reliably powering even the hungriest high-end systems.

The Significance of a PSU

The power supply unit or PSU is one of the most important components in any computer system. It takes the alternating current from the wall outlet and converts it efficiently into the stable direct current required to power all the other components. The PSU delivers precise low-voltage power that is then distributed on different rails to parts like the CPU, GPU, storage and other peripherals. It must safely regulate this power and have adequate wattage to avoid crashing under a heavy workload. A weak or low-quality PSU risks damaging other expensive components through voltage fluctuations or overloads. That is why choosing a reputable and high-performing PSU is critical to ensure a system’s reliability, performance and lifespan. The PSU plays a crucial unseen role in making the whole computer function properly.

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Top 1000W PSUs in 2024:

1. Corsair RM1000x

The Corsair RM1000x stands out as one of the best 1000W power supply units (PSUs) on the market, catering to the demands of high-performance gaming rigs and workstation setups. Renowned for its exceptional efficiency, reliability, and performance, the RM1000x is a favourite among enthusiasts and professionals alike.

With an 80 Plus Gold certification, the RM1000x delivers up to 90% energy efficiency, minimizing wasted power and reducing operating costs while maintaining stable power delivery. Its fully modular design ensures easy cable management, allowing users to customize their setups and maintain clean interiors for optimal airflow.

Equipped with Japanese capacitors and a 135mm fluid dynamic bearing fan, the RM1000x operates silently under typical loads, providing a quiet computing experience even during intense gaming sessions or heavy workloads. Corsair’s commitment to quality is evident in the RM1000x’s extensive protection features, including over-voltage, under-voltage, over-current, and short-circuit protection, safeguarding your components against potential damage.


  • High efficiency (80 PLUS Gold).
  • Fully modular design for clean cabling.
  • Whisper-quiet operation with Zero RPM fan.
  • Premium Japanese capacitors for reliability.
  • Ample 1000W power for demanding setups.


  • High wattage may be overkill for some.

2. EVGA Super NOVA Best 1000W PSUs

The EVGA SuperNOVA series stands tall as one of the finest options among 1000W power supply units (PSUs) available. Renowned for their exceptional performance and reliability, these PSUs are a top choice for enthusiasts, gamers, and professionals seeking high-quality power delivery.

Best 1000W PSUs

With 80 Plus Platinum or Titanium certifications, depending on the model, the EVGA SuperNOVA PSUs offer outstanding energy efficiency, delivering up to 94% efficiency under typical loads. This efficiency not only reduces electricity costs but also minimizes heat output, contributing to a cooler and quieter system operation.

The SuperNOVA series boasts fully modular designs, enabling users to customize their cable setups easily, optimizing airflow and achieving cleaner builds. Additionally, premium components, such as Japanese capacitors and a robust cooling system, ensure long-term reliability and stability even under demanding conditions. Equipped with comprehensive protection features, including over-voltage, under-voltage, over-current, and short-circuit protection, EVGA SuperNOVA PSUs safeguard your valuable components, providing peace of mind for your high-performance computing needs.


  • 80 PLUS Gold efficiency.
  • 1000W for demanding setups.
  • Fully modular design.
  • Quality Japanese capacitors.
  • Eco Mode for quiet operation.


  • Overkill for basic systems.

3. ARESGAME Best 1000W PSUs

ARESGAME is a popular brand known for crafting high-quality and high-wattage power supply units suitable for gaming PC builds. Their line of 1000W PSUs provides ample power for even the most demanding setups with multiple GPUs overclocked to their limits.

Best 1000W PSUs

The ARESGAME 1000W units feature an 80 Plus Platinum certification, ensuring peak efficiency and lower energy bills. They utilize top-tier Japanese capacitors and a single +12V rail design to deliver clean and stable power to components. This eliminates dips and spikes that can potentially damage parts or cause stability issues over extended periods of gaming.

For cooling, the 1000W PSUs have a 135mm fan kept quiet through a semi-passive mode under low loads. Extensive protections like OVP, UVP, OPP, and SCP provide an extra layer of reliability. The fully-modular cables allow for excellent cable management in small cases. With their powerful wattage, high-quality components, and efficient operation, the ARESGAME 1000W units can support even the beefiest multi-card builds with headroom to spare. They ensure top performance from today’s high-powered gaming rigs.


  • High wattage for demanding systems.
  • Energy-efficient (80 PLUS Bronze).
  • Modular cable management.
  • Advanced safety features.
  • Quiet 140mm cooling fan.


  • May be overkill for basic setups.

4. Thermaltake Tough power GF3 1000W PSU

The Thermaltake Toughpower GF3 1000W is a powerful and durable PSU suitable for hardcore gaming systems. It delivers 80 Plus Gold certified efficiency and 1000W of continuous DC power output across its single +12V rail design. This ensures flawless power delivery to even the most demanding multiple GPU configurations.

Best 1000W PSUs

The Toughpower GF3 uses top-quality Japanese capacitors and has comprehensive safety protections like over-voltage, under-voltage, over-current and short-circuit protection. The zero RPM fan mode keeps it completely silent under light loads. An eco mode also improves efficiency during non-gaming periods.

Fully modular cabling with flat ribbons makes for straightforward wire management. The compact yet robust chassis features a tough, gunmetal exterior. Thermal conductivity grease between the PCB and panels further aids heat dissipation from critical components. Altogether, the Thermaltake Toughpower GF3 1000W PSU offers high performance, reliability and advanced features for serious gaming systems.


  • 80 PLUS Gold efficiency.
  • 1000W for demanding setups.
  • Fully modular design.
  • Quality Japanese capacitors.
  • Enhances cable management.


  • Overkill for basic systems.

5. be quiet! Dark Power Pro 12 Best 1000W PSUs

Be quiet! Dark Power Pro 12 1000W is a premium power supply unit (PSU) designed to meet the power demands of high-end gaming systems, workstations, and professional setups. It’s renowned for its top-tier features and impeccable performance.

First and foremost, this PSU boasts an 80 PLUS Titanium certification, signifying exceptional energy efficiency. This high level of efficiency reduces energy waste, resulting in lower electricity bills and less heat generation. The Dark Power Pro 12 delivers 1000 watts of continuous power, ensuring it is the best 1000W PSUs that can handle even the most demanding configurations with ease.

A fully modular design enhances cable management, allowing users to connect only the necessary cables. This modular approach significantly reduces cable clutter inside the PC case, which not only improves aesthetics but also enhances airflow for better cooling. The Silent Wings 3 fan ensures whisper-quiet operation and an overclocking key allows users to switch between multi-rail and single-rail power distribution modes, providing flexibility in power delivery.


  • 80 PLUS Titanium efficiency.
  • 1000W for demanding setups.
  • Fully modular design.
  • Silent Wings 3 fan for quiet operation.
  • Overclocking key for power mode flexibility.


  • Overkill for basic systems.

6. ASUS ROG Thor Best 1000W PSUs

The ASUS ROG Thor 1000W is a high-end power supply unit (PSU) designed to cater to the power demands of gaming enthusiasts and PC builders who demand top-tier performance and aesthetics. It’s part of the Republic of Gamers (ROG) series, which is ASUS’s premium gaming product line.

One of its standout features is the 80 PLUS Platinum certification, which signifies exceptional energy efficiency, reducing energy waste and electricity bills. The ROG Thor delivers a consistent power output of 1000 watts, making it suitable for demanding systems, including those with high-end GPUs, overclocked CPUs, and multiple drives.

What sets this PSU apart is its unique aesthetic design. It features an OLED display on the side, which can show real-time power consumption or custom graphics, enhancing the overall look of your build. It also comes with customizable RGB lighting, allowing you to match it with your system’s lighting theme. The ROG Thor is fully modular, simplifying cable management and ensuring a clean, clutter-free interior. It includes premium capacitors for long-term reliability and stability.


  • 80 PLUS Platinum efficiency.
  • 1000W for demanding systems.
  • Aesthetic OLED display.
  • Customizable RGB lighting.
  • Fully modular design.


  • Overkill for basic systems

Factors To Consider When Choosing Best 1000W PSUs:

When choosing the best 1000W PSUs for your needs in 2024, there are several important factors to consider. A high-quality PSU is essential for ensuring the stability and reliability of your computer system, and selecting the right one depends on various factors. Here are some key considerations:

1. Wattage and Efficiency:

  • Efficiency: Look for PSUs with high-efficiency ratings like 80 PLUS Bronze, Silver, Gold, Platinum, or Titanium. More efficient units waste less power and generate less heat.

2. Compatibility:

  • Form Factor: Make sure the PSU fits your computer case. Common form factors include ATX, SFX, and SFX-L.
  • Cable Connectors: Check that the PSU has the necessary connectors for your components (e.g., CPU, GPU, storage drives).

3. Modular vs. Non-Modular:

  • Modular PSUs allow you to connect only the cables you need, reducing cable clutter and improving airflow.
  • Non-modular PSUs have all cables permanently attached, which can be less tidy but may be more cost-effective.

4. Brand and Reliability:

  • Choose reputable best 1000W PSUs known for quality and reliability, such as Corsair, EVGA, Seasonic, and Thermaltake.

5. Warranty:

  • A longer warranty period often indicates the manufacturer’s confidence in their product. Look for PSUs with warranties of 5 years or more.

6. 80 PLUS Certification:

  • Higher certification levels (Gold, Platinum, Titanium) indicate better efficiency. Consider your energy usage and environmental concerns when making a choice.

7. Noise Levels:

  • Check the PSU’s noise specifications, as quieter units can be more pleasant for daily use.

8. Cooling:

  • Some PSUs come with large, quiet fans or advanced cooling technology to keep temperatures in check.


Power users demanding at least 1000W now have many excellent options from top brands. While premium options like the Seasonic Prime, EVGA Supernova and Be Quiet! Dark Power Pro offer unparalleled performance and quality, and more budget-friendly alternatives like the Corsair RM and BitFenix Formula Gold models also competently power even the most hardcore systems. Ultimately the selection depends on your specific needs and budget. Prioritizing efficiency, silence, longevity or value, a quality 1000W PSU is indispensable for unleashing the potential of today’s fastest components.

People May Ask

  1. What do the wattage ratings mean?

The wattage rating indicates the maximum power output of the PSU. It’s an estimate of how much power the components in your system will draw under full load. Get a PSU with a wattage of at least 50-100W higher than the estimated system power needs.

  1. How do I calculate my power needs?

You can use a PC power calculator to add up the typical wattage used by each component – CPU, GPU, motherboard, storage etc. Alternatively, look at manufacturer recommendations for your parts.

  1. What efficiency ratings should I look for?

Higher efficiency ratings like 80 Plus Gold or Platinum mean less power is lost as heat. This saves energy costs. At a minimum, get 80 Plus Bronze. Avoid unrated generic PSUs.

  1. How long do PSUs last?

Quality PSUs from reputable brands typically last 5-10 years, though some maintain high performance for much longer. Proper ventilation and avoiding overloads extend lifespan.

  1. Can I upgrade my PSU later?

Yes, the PSU is generally upgradable separately from other components. However, if upgrading other high-power parts like GPUs, confirm the existing PSU can handle the increased load beforehand.

Last Updated on 4 June 2024 by Ansa Imran


Ansa Imran, a writer, excels in creating insightful content about technology and gaming. Her articles, known for their clarity and depth, help demystify complex tech topics for a broad audience. Ansa’s work showcases her passion for the latest tech trends and her ability to engage readers with informative, well-researched pieces.

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