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Best PSU For i9-13900K (750W, 850W, 1000, 1300W)

For ever increasing demand of high end CPUs and their performance in the tech world, the best PSU For i9-13900K list is becoming popular. With time, this list has all the necessary power supplies which will fulfill your processor’s power demand as well the GPU and other components etc. From 750W of NZXT C750, we have 1300W in EVGA SuperNOVA for top tier gaming applications.

You do not want to feel left out in the competitive world where you have to struggle for your spot when you took time to assemble your favorite rig. Your selected PSU should be able to give all the power your gaming PC needs and more. Further, these units have 80 plus bronze certification all the way up to platinum. In these 2 extremes, bronze gives you 85% efficiency while platinum is programmed to serve 94% better performance.

So now, even under the lowest loads, you will not have to compromise on the peak hours of working as well. Moving forward to the semi modular and fully modular cabling, the user can either choose to put the cables as they want or be it how they are. The rest can be kept in the box safe and put out when only they are necessary in semi modularity design.

Thanks to the sleeved tubing that will allow the cables to be safe too and not clutter and block the airflow. Like Aresgame GL1000, a compact PSU does not mean it is not based on the ATX form factor. It also has DC-to-DC structure for stable power supply to the rig as well as Gold efficiency of up to 90% better. Moreover, 10 years of warranty from the manufacturer will allow you to use your system safely.

Speaking of safety, electrical protections like EVGA SuperNOVA offers will reduce the risk of any damage from the electricity such as short circuits etc. You also get to see 120mm fan and 180mm to keep the air cooling in flow. When the extra heat is put out smartly and without noise with the help of bearings, your selection will become your greatest asset.

Our Recommended list of the Best PSU For i9-13900K

  1. NZXT C750 Bronz 750 Watt PSU Gaming Power Supply
  2. Corsair RMx Series RM850x Power Supply
  3. Thermaltake Toughpower 750W 80 Plus Gold Power Supply
  4. EVGA SuperNOVA 1300 GT, 80 Plus Gold 1300W, Fully Modular PSU
  5. 1000W Power Supply 80 Plus Gold
  6. Be quiet! Straight Power 11 Platinum 1000W power supply

Intel Core i9-13900K PSU Requirements:

  • 400 watt or above power is recommended
  • Semi modular cabling will be better so that you can take out the necessary cables and not the important ones
  • Noticing the form factor of the power supply such as ATX is important for a top tier processor like 13900K
  • Your choice of graphics card with this processor will also depend on the choice of power supply unit you are going to take.
  • Minimum certification: bronze, maximum: gold
  • A single fan with an air cooling system will manage to get the extra heat out from the system and its whereabouts.
  • Minimum 5 years of warranty, maximum: 12 years

i9-13900K vs i9-12900K:

  • As both flagships do not come cheap, so 12900K is priced at $590 while the 13900K is rumored to be priced at $600.
  • With the newest launch of the latest processor, 12900K might drop its price in the market as well so if you are on a budget splurge, this will be the time.
  • It is obvious that 13900K will serve some serious upgrades from the previous version such as the higher core count, clock speeds etc.
  • There is a huge difference in the core count where 13900K offers 24 cores compared to 16 cores of 12900K.
  • Others are quite simplified in boost counts include boost clock of 5.8GHz in 13900K and 5.2GHz in 12900K.
  • While the base TDP is the same in both processors, turbo uses 253W in 13900K and 241 watts is used in 12900K.
  • L2 cache is also very different and massive in 13900K and is up to 32Mb as compared to 14Mb.

1- NZXT C750 Bronz 750 Watt PSU Gaming Power Supply

NZXT C750 Bronz 750 Watt PSU Gaming Power Supply

The brands that has been on the verge of being worldwide famous and breaking out bombs on the people of tech world.  From the best psu list, this will be possible with the invention of NZXT’s C750 that will spread its name in the market. It serves you the bronze certification for the reliability that depends on the power usage. You do not want your system to be efficient yet not too loud so this feature will help you work quietly.

To compile the silent working, a 120mm fluid dynamic bearing fan is present that is programmed to operate at higher workload without making much noise. Such noise is decreased to a great extent with the help of capacitors and transformers. Having the bronze certification from the C series has its impact as it has increased the percentage up to 2% than the basic standard. Your latest board will be a good fit for this PSU as it is based on the ATX form factor.

When you are worried about the cable clutter, the semi modular cable management will be able to give you the freedom. Once you easily install the machine, the cables will leave no clutter behind the system. These tubings are also sleeved to resist any damage caused by the heat outrage. Since this addition in the PSU, your system will be able to thrive longer than expected.


  • Atx form factor
  • 120mm silent fan
  • Semi modular cabling
  • Air cooling
  • Bronze efficiency is 2% higher than basic versions
  • 750 Watts


  • Can be a little heavy

2- Corsair RMx Series RM850x Power Supply

Corsair RMx Series RM850x Power Supply

Being familiar with air cooling, Corsair RMx series is one of the products that will offer you the same. It comes integrated with a 135mm ML fan that brings magnetic levitation and bearing into action. The bearing is customized to bring you higher performance and reliability while actively reducing the extra noise. Weighing as much as 1.7 kilograms, this unit is designed with an EPS12V connector so it can also become the best psu for z690 board.

Such a connector is able to give the user the freedom of modern graphics cards and motherboard connections without trouble. On top of that, there are 100% industrial grade Japanese capacitors to ensure the promised reliability. Once you get the power that your system needs, it becomes even better with the standby mode. This is the feature where the PSU goes into sleep mode and can still wake the system fast enough even under lower loads.this PSU is also perfect for RTX 3090 Ti PSU.

Having this kind of efficiency is what the users dream of especially when the Zero RPM fan mode can initial the silent functioning. So to let this work in lower to medium workloads in perfect condition is what you should be looking forward to. Moreover, DC-to-DC settlement enables the consistent power support and lesser coil noise during the operation. You also get 10 years of warranty for any damage or repair and maintenance of the unit by the manufacturer.


  • 135mm fan
  • Reliable military grade components
  • Sleep mode for better operation
  • DC-to-DC power 
  • 10 year warranty
  • Full modular cabling
  • ATX form factor


  • Capacitors are present in the cable
  • OCP risk even on minor rails

3- Thermaltake Toughpower 750W 80 Plus Gold Power Supply

Thermaltake Toughpower 750W 80 Plus Gold Power Supply

Thermaltake is going to be the brand that will take over the market with its incredible inventions. One of those is toughpower that is equipped with 80 plus gold certification which indicates up to 90% of efficiency. It means that the most workloads can be handled in the lowest of power or in case of a power loss. With maximum power of 750W, you can easily put this in an ATX board because of this form factor.

There is up to 92% efficiency when the load is at 20 to 100 % load which leads the user to believe that this PSU will give its best shot. It is programmed to work in this manner so that you do not have to worry about this issue in less loads. With the help of an ultra quiet 140mm fan, you can even control the speed and its overall cooling performance. Not to forget about the power factor correction with active PFC that is another good point in this machine.

In the more physical aspect of this unit, we can also see flat cable setup because they tend to tangle less than round cables. Also, they reduce clutter behind the unit when a semi modular system is able to get the unnecessary cables taken out. This baby only weighs 5.8 pounds and 10 x 8 x 4.8 inches in length, width and height respectively. Its integrated fan is able to give 2400 RPM and is also built with an intelligent control guide in it.

To ensure all the connections and components are working at their best potential, 100% high end grade Japanese capacitors are installed. You also get to see a massive +12V output whereas the connectors include 24 pin, 4+4 pin ATX, 12V, 4x 6+2 pin PCIe connectors. Besides that, a 5 pin SATA and 4 pin peripheral connectors are also present with a 1x floppy.


  • Gold certification
  • Semi modular
  • Flat cabling
  • 140mm fan size
  • Ultra quiet operation


4- EVGA SuperNOVA 1300 GT, 80 Plus Gold 1300W, Fully Modular PSU

EVGA SuperNOVA 1300 GT, 80 Plus Gold 1300W, Fully Modular PSU

We know most users who are building their rig can be skeptical about the power supply unit especially when they have joined all the high end components. EVGA SuperNOVA 1300 GT is where it all lies and it is one of the top powerful systems in the market. First and foremost, let us make the coast clear that this PSU comes in 1300 watt of power so get your gears started. A 24 pin power connector is present on this ATX form based unit so you can plug in easily in the latest motherboards.

Not only the power, the brand has focused on the certification and given this beast an 80 plus gold so that it can achieve 90 to 92% efficiency. No matter the loads are typical or higher, this system will handle all and everything that is thrown on its way. A crusher as it is, EVGA did not shy away from putting a fully modular cable system in this PSU. The benefit you will get from this feature is that it will reduce the cluttering wires at the back and will give way to the air to exhaust out.

Once the airflow is improved, the air cooling system of the single fan present in the system will be active enough to keep the temperatures optimal. Thanks to the thermal control system which is the EVGA ECO intelligence in order to keep the noise lowest. On top of this, 100% Japanese Capacitors are able to give the sturdiness to the system that is so needed in overclocking rigs. There are several protections that are present in this PSU such as OVP, UVP, OTP, SCP, OPP, OCP etc.

Speaking of the single fan, it is integrated with fluid dynamic bearing that reduces vibrations. On the other hand, it makes the movement and operation super quiet so it does not take away the focus of the user while he is in working mode. This feature will also increase the lifespan of the fan and the running hours of it.


  • Good operating temperature
  • A massive 24 pin connector
  • Cable length is long enough
  • 10 year warranty
  • Several power protection


  • High power usage than expected

5- 1000W Power Supply 80 Plus Gold

1000W Power Supply 80 Plus Gold

Another rising name in the market is the Aresgame and with it is the invention that has dazzled many of its customers. The GL1000 is rising above the ranks with its 1000W power supply and it is especially made for personal computer usage. Its dimensions measure 5.9 inches length, 5.5 inches width and 3.3 inches height altogether. Based on the air cooling method, a single 120mm fan is also present in this unit for being as great as the i9 psu.

Not to forget about the fact that this PSU is ATX form built that comes with fully modular cabling. This feature helps in reducing the clutter, keep the airflow path clear and the behind the system tidy. The user gets to put in and remove the cables he wants and keep the rest away safe in the box. Getting 10 years of worry free warranty is how you will keep afloat in the ocean of power supply units in the market.

We know that the design and dimension count makes this seem like a compact system but it has large capacity. To keep all the important features in this size is truly a noteworthy and appreciating factor about the brand as well. Furthermore, 80 plus Gold certification is able to serve you a 90% efficiency rating in top loads. For continuous and stable power output, this machine is equipped with APFC+LLC structure or normally said DC-to-DC structure.


  • Fully modular cables
  • DC-to-DC structure
  • 1000W for advance gaming
  • ATX factor
  • 120mm fan


  • Might overheat at times

6- Be quiet! Straight Power 11 Platinum 1000W power supply

Be quiet! Straight Power 11 Platinum 1000W power supply

A company that keeps all other turns to dust is quiet that has done it before and will do this now as well. Its straight power 11 comes equipped with enough fuel to make it the best 1000w power supply for your high end systems. The special thing about this unit is that it has been designed to work with most of the advanced rigs. So if you have been planning to put high end components together under one system or have done that already, this unit will solve your issues with the power source. Some users might also believe that it has a good price on Amazon if we look at the competitive market.

The inside of the PSU is wireless therefore, the DC side is used for the cooling system as it is also important for the improvement of the unit’s life. There is a fan of 135mm present that keeps any extra heat that might disrupt the optimal working state of this PSU. in addition to these features, full modularity over the cable management is given to the user. Now you get to choose which wire stays on and which goes into the box to reduce the cluttering wires.

Once you achieve the maximum amount of flexibility in the cable management, it is time to look at other greater factors this PSU has to offer. Thanks to the funnel shaped opening for the fan in order to keep the airflow intake higher than traditional designs. Moreover, the virtually inaudible fans are programmed to cause as little trouble as they can with the noise. This is great evidence of a quality structure of a PSU by the well known brand dealing with such products.

Last but not the least, 80 plus platinum certification has really increased the points of this product on the competitive charts. It is able to give you 94% better efficiency than any other system of this category. Pointing towards the fact that now even at the lowest loads, you do not have to worry about flunking out during peak hours.this PSU is also compatible with i9-12900K PSU.


  • Great quality build
  • Gold certified
  • Electrical protection support
  • 5 year warranty
  • Full modularity


  • Noise levels can be disturbing

Best PSU For i9-13900K Buying Guide

To keep your selection up to the mark with your processor, we have compiled this guide for your ease. If we look at the factors like i9-13900K is the highest tier of processor and you are pairing a peak performer GPU, you will need to have a selective PSU such as Aresgame GL1000. It will have all the suitable options that will keep your workflow trouble free. So we will go through each feature in this guide to see how PSUs like the one we suggested make it to the list and why!


Normally we would say that the 400W PSU will be quite enough for your system minimally and up to 750W is adequate choice. But this category has got up to 1300W of power such as EVGA’s SuperNOVA GT. Some users might think that this can be an overkill but gamers and PC enthusiasts can relate to the fact that their usage has a lot to do with the PSU selection. Most importantly, we do not want to fall short for the power source that is going to fuel all of our system.


Basically, there are 3 types of cable management commonly found in PSUs known as semi modular, fully modular and non modular. The difference between them is that semi cabling will be able to let you put out extra wires that might not be necessary at the moment. The rest will not be removable so you have no worries about putting or removing them. Further, fully modular cables have the freedom to be put the way the user wants them to whereas the non modular is for the people who do not mess with wires.


Keeping in mind the wattage of your system, we have the basic version of certification in Bronze present in NZXT C750. It serves you maximum efficiency under half the load while the gold certification maintains up to 90% efficiency in lower loads. Another category is platinum certification which is able to serve 94% efficiency under 20% load as well.

Form Factor:

Most of the boards in the market are already in ATX form factor so they can adjust an ATX PSU that will have most of the features on it. The list of PSUs mentioned above are all based on ATX structure meaning that they have better connectors even in compact bodies in dimensions.


Air cooling is mostly preferred in PSU where a 120 to 140mm fan is present on the inside. Some of them are integrated with a smart thermal cooling system while others come with fluid dynamic bearing to reduce the noise while it works. One of the brands will have a funnel shaped opening so that more extra heat can be evaporated and the PSU can run at optimal temperature. 

Additional Features:

One of the important points to notice while buying a PSU is the warranty that can range from 5 years to 10 years. This will increase the customer’s trust on its manufacturer and will also cover any repair that may come in the way. Additionally, electrical protections just as OVP, OPP, OTP, UVP, OCP, SCP etc will manage any loss or leakage of power and prevent further damages to your system.


What PSU Fits Into Intel Core i9-13900K?

Your preferred brand with at least 400W of power will be able to fit well with the INtel core i9-19300K.

Are There Any Requirements For PSU Selection For i9-13900K?

Considering i9-13900K as a high end gaming CPU, you should consider options like form factor, power wattage, cable management and other features etc.


  • 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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