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Best PSU For i9-12900K (Intel 12th Gen Compatible Power Supply)

If you are a user of Intel i9 core and want to Buy the best power supply for i9-12900k for your computer system, then you are at the right website. Finding the best power supply is not an easy task. You have to view all the features of the power supply before buying. PSU plays an important role in your operating system, if you have a computer system that runs on a high load and you buy the power supply of a low load then it may crash and your system is not working properly.

All the power supply is engineered to deliver unrivaled performance for any PC and ensure that it delivers efficient power at low to medium load. The power supply with high efficiency that is up to 80 percent keeps your system running cool. This extremely efficient and powerful PSU features a cooling fan for exceptional cooling performance even in the most demanding environments.

In this article, we also put the one fanless power supply that is specially designed for gamers who want maximum stability and performance. The fanless design helps reduce noise and improve airflow to keep the system running at peak performance. For users who want to save space, there’s an optional fanless kit that lets you mount the power supply inside the chassis.

The modular and non-modular power supplies work and look the same. But the difference is that you can attach the modular power supplies with your own choice but in the non-modular, all the cables are fixed.

The main feature of the power is to control the electricity voltage in the computer system and convert AC current to DC current. Below we make a list of hand-picked list products that are highly demanded in the market. So grab your product from the below list.

  1. CORSAIR AX Series, AX1000
  2. EVGA Supernova 1000 T2
  3. Seasonic PS SSR-700TL
  4. Thermaltake Toughpower iRGB
  5. CORSAIR HXi Series, HX750i
  6. SilverStone Technology SX800
  7. Straight Power 11 Platinum 750

1. CORSAIR AX Series AX1000 1000 Watt Fully Modular Power Supply

The Corsair AX Series Titanium, one of today’s most efficient power supplies, is the perfect all-round PSU for any PC build. With 80+ Titanium certification – to help you get the best performance out of your components – this PSU is ideal for any system when you need all the power you can get. It’s also extremely quiet, so no one will even notice when it’s in use.

The AX series power supplies are engineered to deliver unrivaled performance for any PC. Featuring an advanced design, the AX PSU delivers the most efficient operation for your system with Zero RPM fan mode at low to medium loads. With high efficiency that is up to 80 percent, the AX is guaranteed to keep your system running cool even when you’re pushing it hard.

This extremely efficient and powerful PSU features a 135mm cooling fan for exceptional cooling performance even in the most demanding environments. The Zero RPM fan mode ensures near-silent operation at low to medium loads, with virtually no noise. Ensures near-silent operation at low to medium loads, with virtually no noise.1000W of continuous power for lightning-fast system boot up and exceptional stability.

It is High compatibility and high-quality performance.80+ Titanium certified ensures the world’s best power efficiency and supports the latest 15th and 16th Generation Intel Core Processors. Zero RPM fan mode for near-silent operation at low to medium loads, making it perfect for home theater PCs, multimedia PCs, and small form factor DIY builds. Compliant with ErP Lot 6 2013 standards for energy efficiency, ErP Lot 6 2013 certification ensures a power supply will perform as efficiently as a similar model rated at a higher wattage under real-world load conditions.

2. EVGA Supernova 1000 T2 1000W Fully Modular Power Supply

EVGA Supernova 1000 T2 Titanium Fully Modular PSU is the most advanced power supply unit in its class. Unmatched in quality, performance, and design, EVGA has applied their experience in the power supply market to create the Supernova 1000 T2. The Supernova 1000 T2 is 80 PLUS Titanium certified with a continuous power rating of 1000W that is backed by a 10-year warranty.

EVGA has been the number one NVIDIA authorized partner in the entry-level enthusiast market for over a decade. Fan control is done via a single, large 140mm ball bearing fan, which delivers a smooth and efficient power transfer at an affordable price point. With a high-quality build and the EVGA reliability you know and trust, this model is a great choice for your new rig.

A value leader in high-quality power supplies. With an 80 PLUS Titanium rating, this PSU offers a 94% efficiency rating under typical loads. The EVGA SuperNova 1000 T2 boasts an ultra­compact footprint with only 6 3/4″ (170mm) of depth, yet it’s large enough to deliver 2000 watts of continuous power for the most demanding users. Featuring the latest in high-quality Japanese solid-state components, this power supply is built with fully modular cables and an internal cable structure to ensure maximum airflow and cooling for outstanding reliability and stability. Other features include a 100% Japanese ten years warranty, fully modular cables, thermal sensors, and fully protected voltage rails for superior efficiency and stability.

3. Seasonic PS SSR-700TL Prime FANLESS TX-700 700W ATX 80+ Titanium PSU

The Seasonic SSR-700TL offers a superb balance of performance and efficiency with a low price tag. This PSU has a combined Silent Fanless Design for improved system stability and lower operating cost, with a maximum 700W continuous output. The fanless design also provides enhanced power efficiency. This power supply is designed for NVIDIA SLI or AMD CrossfireX systems, offering unparalleled performance in a fanless ATX design. The SSR-700TL is a fully modular design with the 12V rail at 20A and the PCIe at 7A, which allows you to power two high-performance i9-12900K graphics cards or one single card plus the required CPU voltage.

This power supply is designed for gamers who want maximum stability and performance. This fanless design helps reduce noise and improve airflow to keep the system running at peak performance. For users who want to save space, there’s an optional fanless kit that lets you mount the power supply inside the chassis. The use of only high-quality components helps ensure stable, reliable performance. With an array of advanced features, this unit helps deliver maximum stability and power for any demanding application.

No matter what software you use to update your Elgato game streaming app, it should be easy to do. We know you might not want to use an external drive, USB flash drive, or another computer, but if you’re running into issues downloading or updating your Elgato game streaming app, try these options first. For help with other Elgato products like the sister product Game Capture HD, check out our troubleshooting guide.

This impressively powerful PSU is an ideal choice for high-performance systems. In addition, this power supply features a fanless design, which means that it has no cooling fan, helping to keep the PSU quiet even during continuous operation. In terms of power output, this unit can provide up to 750 watts of continuous power and 650 watts of peak power output. It also comes with a fully modular design and support for multiple types of connectors, giving you the freedom to choose the best cables for your system.

4. Thermaltake Toughpower iRGB Plus 1050W Power Supply

Add an impressive look to your gaming rig with the Thermaltake Toughpower iRGB Plus 1050W 80+ Platinum PSU. This PSU is designed to illuminate with 16. 8 million RGB LED colors. The 12 addressable RGB LEDs and 7 lighting options at your fingertips allow users to customize their power supply for improved customization.

Tougher, stronger, more powerful. This power supply delivers more of everything for your build. Advanced circuit design reduces noise while the fan stays cool during heavy loads. Its ultra-quiet operation is ideal for quieter builds, while the flexibility to control all 12 addressable RGB LEDs and 7 lighting options at once gives you unparalleled control. Connectivity options include 6+2 pin PCI-E 8pin EPS12V & SATA power connections, 6+2 pin EPS12V & SATA connection via adapter cables, RGB/addressable RGB LED connector. The integrated RGB strip can be connected directly to the FAN controller or connected to the RGB/addressable RGB LED connector to connect to the motherboard.

8 million RGB LEDs and 12 addressable RGB LEDs for perfect lighting effect. With 7 lighting options at your fingertips, you can program each LED to perform a variety of functions, or change the color of each channel individually. The Toughpower iRGB Plus also lets you connect the fan’s fan speed controller to your i9-12900K motherboard, allowing you to change the fan speed with the click of a button on its user-friendly LCD interface.

Meet the first 100% Platinum certified power supply for gamers and workstation users. True power and efficiency can only come from Platinum components and this unit is no exception. With a fully modular cable design, over 80% efficiency, and 80 PLUS® Platinum certification, the Toughpower 1050W work with ease for your most demanding tasks.

5. CORSAIR HXi Series HX750i 750 Watt Digital Power Supply

The HXi Series is a part of the high-end DC to DC designs from CORSAIR. Here, CORSAIR has introduced a new series that combines efficiency, modularity, and performance into one package. One may choose from a variety of enthusiast-level models that cater to both the performance and efficiency requirements of any PC build.

At Corsair, we’ve designed our HXi Series PSUs to take full advantage of your PC’s performance and maximize the potential of your system. Our latest generation of high-performance power supplies is available in 650 and 750 watts and supports an 80 PLUS Platinum rated efficiency. And we’ve added a low-profile black modular cable design that reduces cable clutter and improves airflow for quieter operation. ZeroRPM mode allows you to set the PSU to complete its load in a single second for much-reduced fan speed when idle, giving you reduce fan noise when you’re not using it. The HXi Series from Corsair provides you with more power, more efficiency, and a better system.

With a minimum operating noise of just 17dBA at full load, this PSU puts a premium on silence. It achieves a noise rating of just 35dB at idle and a maximum of just 38dBA. This is made possible by Corsair’s custom-designed fanless design, which features a silent cooling system that is completely passive. ZeroRPM mode allows the PSU to operate silently even when the load goes down to as low as 1 Watt, so it’s perfect for use as a quiet fanless PC power supply or as part of a silent PC build.

The Corsair HXi Series power supply is a high-performance design that can deliver reliable, continuous power with exceptional efficiency. This model uses flat black cables to limit the number of cables in your build while providing clean lines with zero connector clutter. 

6. SilverStone Technology SX800-LTI 800W Power Supply

The SilverStone SX800-LTI is a high-performance 80 PLUS Titanium certified power supply with a very clean and simple design. It has a single +12V rail with a maximum capacity of 66A that delivers the highest power output while remaining completely silent. It also comes with a very impressive list of features that includes a 24/7 continuous rated continuous power output, a very efficient single +12V rail with a maximum capacity of 66A, and a fully modular cable design to ensure compatibility with any chassis. 

The fully modular cable design means that the cables are all flat and sleeved which is considerably more convenient for enthusiasts and allows for better airflow. The SX800-LTI is designed for maximum efficiency by featuring 80 PLUS Titanium certified efficiency specifications and is produced in Japan. It also provides full compatibility with any chassis thanks to its fully modular cables and uses high-quality Japanese capacitors throughout its entire construction. This is one of the most efficient power supplies on the market.

This high-quality power supply from SilverStone is a great choice for your home or office. Class-leading single +12V rail with 66A ensures you have enough power for the most demanding computing applications. 80 PLUS Titanium certification ensures you get the best possible efficiency with low power loss. A quiet 120mm fan with an advanced semi-fan provides superior airflow for efficient cooling.

The advanced semi-fan technology of this PSU makes it run quieter than comparable PSUs on the market. It is more efficient and far less wasteful than traditional fans. A perfect choice for an energy-efficient home or office computer build. Have a reliable power supply unit to power your gaming system and other devices. The SFX form factor allows for a compact, high-efficiency design that is compatible with a wide range of power supplies.

The advanced SFX design provides a single +12V rail with 66A for improved performance and reliability. The 80 PLUS Titanium standard ensures that this unit will be more efficient than the competition at lower loads. All Japanese capacitors combine for improved power reliability and enhanced lifespan.

This SilverStone unit features a 120mm fan for cool operation and a semi-fan design to reduce noise levels. With this quality PSU to power your system, you won’t have to worry about downtime for repair or replacement. This unit provides you with all the convenience and high performance you need to keep your system running at its best for any occasion.

Silent and energy-efficient: the sleeved sleeving cables deliver optimal airflow and provide a silent and power-efficient design. The PSU delivers 80PLUS Titanium efficiency, and the latest generation voltage regulation ensures stable power. Using a single +12V rail with 66A provides high power output for high-performance graphics cards, quad video cards, and multiple hard drives. The range of +12V cables allows users to adapt their system as needed. The PSU’s modular cable design minimizes clutter for a clean and efficient look.

7. Be quiet! Straight Power 11 Platinum 750W Fully Modular Power Supply

Be quiet! Straight Power 11 Platinum 750W is a power supply unit that displays 80 PLUS Platinum efficiency with virtually no noise. Silent Wings 135mm fan provides high airflow intake and keeps the PSU cool. Funnel-shape fan opening of the PSU case for high airflow intake. Wire-free inside the PSU on the DC side for enhanced cooling and longevity. Modular cabling keeps build flexibility at its best.

The new be quiet! Straight Power 11 Platinum 750W is an 80 PLUS Platinum certified PSU that delivers up to 750 Watts of power for system builders with high-end requirements. The PSU also has a minimum of 105% efficiency (full load) and can offer extra energy savings when in idle mode. A state-of-the-art power supply with a powerful 80 PLUS Platinum efficiency. This power supply features a virtually inaudible 135mm Silent Wings fan for up to 20% cooler operation. 

Best Power Supply For i9-12900K Buyers Guide


Firstly, you have to look at the cabling of the PSU whether it is modular or non-modular. In modular, you can set up the cables with your own choice but in non-modular, you can not set up the cables by your own choice they have already fixed.

Multi GPU Support:

By attaching a 12V rail and 16 PWM cable you can make multiple GPU support. The PSU itself has 6-pin and 8-pin PCI-E power forgive the power to GPU AND CPU.


The 80 PLUS bronze gives 80% efficiency under 20% load. On the other hand, 80 plus gold gives 90% efficiency under 16% load. The efficiency of the power supply depends upon the type of 80 PLUS.


Must check the warranty of the power supply. Some power supplies have 2 to 5 years warranty but some have a 10-15 years warranty. So buy it on your own choice which is best for your device.


Every power supply is manufactured with fan support to keep all the internal components cool and avoid them from heating. In very rare cases the power supply comes with a fanless design but these are quite expensive as compared to the power supply with a fan. The speed of the fan depends on the power that if it works on a high load then it works faster. 


If your system works on 500 watts then you have to buy a PSU that comes with 600 watts – 1060 watts. It allows you to work with potential without any crash.

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  • Areesha

    Areesha is a tech enthusiast and a freelance writer who loves to share her insights on the latest gadgets and innovations. She has been reviewing tech products for over five years, covering everything from smartphones, laptops, cameras, smartwatches, headphones, and more. She enjoys testing out new features, comparing different models, and giving honest feedback to her readers. Areesha’s reviews are always informative, engaging, and easy to understand. Whether you are looking for a new device, a gift idea, or just curious about the tech world, Areesha’s reviews will help you make the best decision. You can find her work on various websites and blogs, such as [TechCrunch], [CNET], [The Verge], and [Gizmodo]. You can also follow her on [Twitter] and [Instagram] to get the latest updates on her reviews and projects. Areesha is always open to suggestions and feedback from her audience, so feel free to contact her anytime. She is looking forward to hearing from you!

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