Best Power Supply For i9 9900k

Best Power Supply For i9 9900k

Searching for the Best Power Supply For i9 9900k? You’ve come to the right place.

The ideal power supply for you is the one with an 80+ efficiency rating. Try getting higher than 80+ ratings to get good results. The second thing to look for is that the 12-volt rail on the power supply provides enough amperage for your video card. Your video card will provide a minimum recommended amperage, make sure your power supply’s 12-volt rail provides at least 50% more than that.

This way, you can get a high-quality ATX power supply that you can use 9700K or a 9900K.

Best Power Supply For i9 9900k

Let’s get started with the best power supplies available on the market.

1. EVGA SuperNOVA G3 550W 80+ Gold

EVGA SuperNOVA G3 550W

Undoubtedly, the EVGA SuperNOVA line of power supplies is the most popular line of power supplies and the G3 550W is the one that’s ideal for 9700K build. It’s best-suited for a system with 9700K, GTX1080 graphics card, an SSD, and an HDD.

The G3 delivers 87%+ efficiency, thanks to the 80+ gold rating that enables this unit to bear full load. The customer service by EVGA is top-notch. Finally, with ~46 amps on the 12v rail, it way more than meets the requirement for the GTX 1080.

Regarding price and performance, this power supply hits a sweet spot that makes it a worthwhile option for your money.

check price

2. EVGA 600 BQ 80+ Bronze

EVGA 600 BQ 80+ Bronze

If you only wish to overclock the CPU, not the GPU, the EVGA 600 BQ is the ideal power supply for you. This build has an overclocked 9900k, an RTX2070, a closed-loop CPU cooler, 2 SSDs, and 2 HDDs. This one is also a budget pick that comes in an extremely reasonable price tag while holding solid features, with relatively few downsides.

Moving on, the EVGA 600 BQ is semi-modular which means only major power cables are wired into the power supply, and then peripherals cables are modular.

Having an 80+ bronze rating, the EVGA 600 BQ gives 82% efficiency, which is 5% less than gold rated. While there is a huge difference in prices of bronze and gold rated power supply.

check price


3. Corsair RM1000i 80+ Gold

Corsair RM1000i 80+ Gold

Need something to overclock for gaming? Corsair RM1000i is the best option for you that can easily take care of a system with 9700k, a GTX 1080 Ti, a closed-loop CPU cooler, 2 SSDs, and 2 HDDs. With ~83 amps on the 12v rail and 1000 watts, you can overclock both GPU and CPU.

This power supply is fully modular and has an 80+ gold rating, making it reliable and a cinch to build with. At ~$160, it’s a great bargain for a high wattage power supply, and a great choice for overclocking.

check price



No matter what opinions might hold, there is no doubt that an element that is the most crucial one when it comes to the activity of a PC; it has to be the power supply. Without it, a PC is only a mere box loaded with plastic and metal. The power supply is what allows the changing of energy over the exchanging current (AC) line from your home to the immediate current (DC) required by the PC.

However, since this is such a technical subject that might be daunting for more inexperienced users, we have compiled a review for our top 5 picks of the best power supply for i9 9900k.

If you don’t have the time at the moment to go over this review at the moment of our 5 picks, we recommend that you take a look at the EVGA 220-G3-0750-X1Power Supply which is a product that offers a 10-year warranty and is also certified by the 80 plus gold accreditation service. If in case you would like to know more, keep reading and do not forget to check out the buying guide we have laid out for you at the very end!

Best Power Supply For i9 9900k

If this, however, isn’t enough to convince you, we recommend you keep reading to make the best decision and before you start reading, take a look at our handy comparison chart as this will inform you regarding the basic features of each product.

Sr. NoProductFeaturesPrice
1Corsair RM Series Power Supply● 105°C-rated capacitors Check Price
2EVGA 220-G3-0750-X1Power Supply● 80 Plus Gold certified Check Price
3EVGA 450 BR Power Supply● 3 Year warranty Check Price
4Seasonic FOCUS Plus 650● Compact Check Price
5EVGA SuperNOVA 650 P2● 650 watts Check Price

Let’s Start…

1.) Corsair RM Series Power Supply

First up we have the Corsair RM Series Power Supply which is certified with 80+ Gold certification and it has an extremely high-efficiency operation especially when it comes to a lower power consumption which features way cooler temperatures and much less noise.

This power supply product is perfect for the lowest noise operation performance as it works amazingly with a 140mm rifle bearing fan and it has a special curve that ensures the noise is kept to a minimum even if it is functioning at a full load.

This device comes fitted with 105°C-rated industrial-grade capacitors that ensure solid electrical performance and dependability. Finally, it has a state of the art Microsoft modern standby compatibility which means that it has a much better low load efficiency as well.check price

  • 80+ Gold certified
  • Microsoft modern standby compatible
  • Tuned for low noise operation
  • 105°C-rated capacitors
  • None really

2.) EVGA 220-G3-0750-X1Power Supply

The EVGA 220-G3-0750-X1Power Supply is part of an award-winning G2 Series power supplies from EVGA.

This is made easier to believe as it has a10 Year warranty for users and is also fitted with Japanese capacitor design.

This device is also completely certified by 80 Plus Gold certification and also offers a 90 percent (115VAC) plus a 92 percentage (220VAC to 240VAC) efficiency or higher.

check price

  • 10 Year Warranty
  • Japanese capacitor design
  • 80 Plus Gold certified
  • Award winning G2 Series power supplies
  • None really

3.) EVGA 450 BR Power Supply

The EVGA 450 BR Power Supply is a product that offers 450W of continuous power and is both efficient and extremely reliable.

It has been certified by the 80 plus Bronze Certification and thus will ensure that it produces 85% efficiency or higher under most loads.

It also comes with a guarantee of far better protection, which includes the likes of OTP, OVP, OPP, UVP, and OCP, and of course SCP.

It offers a 3 Year warranty along with the brand’s promise of 24/7 technical support.

check price

  • 80 plus Bronze Certified
  • 450W of continuous power
  • Heavy-duty protections
  • 3 Year warranty
  • Great customer service
  • None really

4.) Seasonic FOCUS Plus 650

Up next we have the Seasonic FOCUS Plus 650 which comes with an incredible 10-year warranty that ensures users can be at mental peace knowing their device is covered.

It is quite compact as compared to most others as it is only 140 mm deep and it also has a higher power output to its size ratio.

This device comes with a certification by 80 Plus Gold which allows it to guarantee that it runs 87% efficient at 20% load and 87% efficient at 100% load.

check price

  • Compact
  • 80 Plus Gold
  • 10 year warranty
  • None really

5.) EVGA SuperNOVA 650 P2

Our next product which is the EVGA SuperNOVA 650 P2 is available to users in 650 watts. This unit has an 80 Plus Platinum certification.

It offers spotless and high-quality performance capacity for each part. The ECO Control Fan framework offers fan modes to give completely zero fan commotion during low burden to medium burden tasks.

It is backed by a 10-year warranty and also has a 100% Japanese capacitor plan which is why the EVGA Supernova 650 P2 is a highly rated product.

check price

  • 650 watts
  • 10-year guarantee
  • 80 Plus Platinum rated
  • ECO Control Fan system
  • 100% Japanese capacitor design
  • None really


Buying Guide:

Now that you have taken a good look over our top 5 picks for the best power supply for the i9 9900k, you will find that you are far better equipped to handle the big task of selecting a product for yourself. However, you might still be confused regarding certain facts and technical questions which we will answer down below in the following questions. We will also list out a few of the most important factors that should be taken into consideration before you make your purchase.

Figure Out How Much Power You Need:

It is extremely important to figure out how much power a certain user needs for their specific needs and their particular system as the overall performance will depend on this. This can easily be checked with a tool called the Newegg’s power supply calculator which helps you decide precisely how much force your new supply needs to yield.

The tool is so good and precise as it takes into consideration all the latest developments the most recent alternatives for the graphics processing unit (GPU), the Central processing unit (CPU), the Random access memory (RAM), and the motherboard among other options.

Make Sure Your Product Is Protected:

Many manufacturers of power supplies will work in insurances to help guard your parts from power-related problems. These assurances frequently add some expense to a power supply; however, they also mean a lot of peace of mind as you know your PC is well protected.

The first of these is overvoltage assurance, which alludes to a circuit or tool that closes down the power supply unit if the yield voltage surpasses the predetermined voltage limit, which is regularly higher than the appraised yield voltage. This assurance is significant since high yield voltages may make harm PC parts that interface with the performance of the power supply.

Make Sure The Product Is Certified:

As you’re looking for power supplies, you will come across the 80 PLUS accreditation which is one of the most popular certifications out there in the industry. 80 Plus is a confirmation program that producers can use to give affirmations that their power supplies will meet certain proficiency requirements. This is important also because when you buy a product like this it doesn’t come cheap and you want something that will offer you a guarantee for performance and quality.

Frequently Asked Questions (FAQ):

How many watts does an i9 9900k Use?

Intel utilizes a feature called the Thermal Design Power (TDP) to portray how much force their processors produce and with this process it has been decided that the i9 9900K is appraised at 95 watts. Even though that is true, it is also true that the measure of intensity it utilizes shifts a great deal, extending from under 10 watts when inactive to more than 130 watts when running at max throttle.

What is the best motherboard for i9 9900k?

There is no denying that a motherboard is one of the most important elements in any computer system, however, it is also true that this is a product that needs constant updating and maintenance. This is why it is considered unwise to go all out for the motherboard and settle instead for a more medium level product.

For this very reason for a processor such as the i9 9900k, one of the best motherboard options is the ASRock Z390 Taichi Ultimate, which has been specifically designed for online gaming. This is reinforced by the fact that it supports 10GB Ethernet, so you can ensure you stream and game with absolute ease.

Talking a bit about the main features, the Taichi Ultimate has three PCIx16 openings, so you can introduce any GPU and the sound card you would want. Contingent upon your equipment choice, however, you may need to readjust and tweak the arrangement. It is also worth keeping in mind that the lower slot is near the RTC battery, so you might need to be extra cautious when you’re introducing a card in that opening.

Another amazing thing about the Taichi Ultimate is that it can support up to six SATA associations. In case you’re just utilizing one M.2 space, you’ll need to utilize the subsequent one as well since it will involve SATA port 3. The first and third spaces will each take two SATA associations, 0/1 and 4/5 separately.

Is air cooling enough for i9 9900k?

Nowadays it is common that most CPUs can run Core i9 9900K on stock speeds effectively with temperatures well leveled out, even if they are at full capacity. You can likewise overclock the Core i9 9900K to 4.9 GHz or 5 GHz on every one of the 8 centers, and since air cooling is being used, it is sufficient to hold the temperature under 80°C or 85°C at those frequencies and on the off chance that you have a good enough airflow in the PC case, extra fans can be added.

Is the i9 9900k good for streaming?

When it comes to selecting the best CPU for streaming it implies that you might be choosing to consider something beyond a processor that has the best crude power or clock speed. When it comes to streaming and that too at 1080p, a decent processor is the most basic tool for ensuring that users can keep up a constant flow and excellent gaming execution.

That’s why it is a great thing that Intel gives the Core i7-9700K and i9-9900K CPUs as great streaming choices. However, on the other end of the spectrum products such as the Ryzen 3000 CPUs have additionally increased the gap considerably.

Is i7 9700k better than i9 9900k?

In their rights, both devices are a powerful choice for users; however, on closer inspection and comparison, we see a huge difference in performing power. This is how we see that while the i9-9900k is unrivaled in multi-core speed among its Intel counterparts, it, unfortunately, midpoints under 5% contrast in single-core and quad-core speed against the i7-9700k in non-overclocked tests. However, this gap is somewhat covered when it comes to overclocked rigs where the margin for this gap is even lesser.

All of this is worth noting especially since the i9-9900k costs generally 25% more than the i7-9700k.

Does the i9 9900k need liquid cooling?

While it may have its demerits, there are a lot of users that are more than happy with liquid cooling for their CPU. It is considered as one of the best approaches to cool a CPU since water moves heat considerably more proficiently than air.

In terms of popularity, many users do prefer using liquid for the i9-9900k as compared to air as it makes your PC run cooler because you won’t have fans continually running at a high RPM. Nonetheless, as a drawback, the liquid cooling can likewise be perilous if water spills onto equipment.

Add Comment