The Best PSU Brands 2021: Power Supply For Gaming PC

Best PSU Brands
Image: Dadan Kurniawan / Shutterstock

The power supply is one of the lesser-discussed components of a computer, yet one of the most important ones at the same time. It processes power to all of your hardware and allows it to safely run, which is as important as drinking water for a human being.

A good PSU means that your computer will have a proper electric flow that is neither less nor more than what it needs, and your components will remain healthy for years to come.

However, a bad PSU has the potential of destroying your entire computer. In the best-case scenario, if a PSU dies, it takes one other component with it which can be your RAM or your hard disk.

In the worst-case scenario, your entire motherboard can get fried and take almost everything inside your PC with it.

There are many PSU brands and every brand has lots of models, which are usually separated between their effectiveness on the basis of price and availability. It can be very time-consuming to figure out which PSU brands and models are the best ones, so we’ve created a thorough guide to make it easier for you.

Although there are many brands that make PSUs and every brand has a long list of models as we briefly mentioned above – so we will only be listing the brands which are of the highest quality.

And to narrow it down further, we will only list one power supply each from the brands which can be considered their best product as of 2021. Without wasting any time, let’s jump right into the list.

The Best PSU Models in 2021 For Gaming PCs

Not every power supply from a brand is good, and not every brand only makes bad power supplies. So, these are the best PSUs that you can get for your gaming PC in 2021, from one major brand each.

  1. Best Seasonic PSU
  2. Best EVGA PSU
  3. Best XPG PSU
  4. Corsair PSU
  5. Cooler Master PSU
  6. Thermaltake PSU
  7. SilverStone PSU

One important thing that everyone needs to know before buying a PSU is to check how many watts your graphics card will need to run on. This information can be checked on the page of the GPU that you choose, or you can simply ask the retailer or website that you’re about to purchase it from.

Only then, you should pick the PSU that suits you best. And if you already got a PSU and are getting the GPU later – make sure to see if the graphics card needs more watts than what your PSU can give.

In that case, upgrade your PSU before installing the new GPU inside your PC, otherwise, you might damage your hardware.

Best Seasonic PSU

With Seasonic, we’re going for a budget pick because although the brand does have more expensive PSUs – you’re better off going for one of the other brands we recommend in that price range.

Seasonic S12III 550 SSR-550GB3 550W
  • Fixed cabling – Provides all the necessary cables required for a standard pc.
  • 80 plus Bronze – 82% efficient at 20% load, 85% efficient at 50% load, and 82% efficient at 100% load.
  • 120 mm SLEEVE BEARING FAN; The 120 mm fan inside is regulated by the Sea sonic S2FC fan control.
  • 5-year warranty; commitment to superior quality.

The Seasonic S12III is a fairly well-known PSU for gamers who want to play on a budget. It’s fairly durable and costs a very small price, and the 5-year warranty that it comes with goes to show that the company does intend for it to last.

It has an 80 Plus Bronze rating which is pretty decent for the price and it’s fairly silent compared to some other smaller-scale PSUs that you’d usually see.

What We Like About This PSU:

  • Durable Japanese capacitor
  • Silent Fan
  • 550W
  • On budget.

What We Don’t Like:

  • Nothing to particularly dislike about this, 550W just isn’t enough for some GPUs.

Best EVGA PSU

If your PC build was made with a budget in mind but you still want to leave a small room for upgrading some components, then you’re most likely looking for something that has a Max DC Output of 600W watts. In this case, EVGA has a very affordable option that is still good enough on the quality side.

EVGA 600 BR, 80+ Bronze 600W
  • EVGA 600 BR – “Bronze reliability”.
  • 80 plus Bronze certified, with 85% efficiency or higher under typical loads.
  • Heavy-duty protections, including OVP, UVP, OCP, OPP, SCP, and OTP.

The EVGA 600 BR has an 80 Plus Bronze certification that has 85% efficiency, and it’s 120mm fan tends to keep it quiet even when the max output of 600 watts is being used. It’s not modular, but it does come with a 3-year warranty and will satisfy gamers who are on a budget but intend to upgrade their CPU or PSU a little in the future.

It costs only $50, which is a steal since it is a durable product.

What We Like About This PSU:

  • A great budget-friendly price.
  • 600W power, which is good enough for small upgrades to your gaming PC.
  • 3-year warranty.
  • Silent fan.

What We Don’t Like:

  • It’s non-modular, which might come off as jarring to anyone not buying a PSU in the 500W territory.

Best XPG PSU

When you need a 650W PSU, it’s safe to say that you’re spreading your wings outside of the budget territory. In which case, XPG is the brand we felt was the best for both price and quality.

XPG CORE Reactor 650Watt
  • 80 Plus Gold Certified. High-efficiency operation with low noise levels.
  • 120MM FDB fan with intelligent fan control.
  • High-quality Industrial-grade Japanese capacitors for extra reliability
  • Fully modular cables for a simple and tidy build.
  • 10 Years Manufacturer warranty.

The XPG Core Reactor 650W PSU has a rather generous Max DC Output, and its efficiency is rated at 80 Plus Gold, which is incredibly durable and something that you don’t need to worry about at all. On top of that, it comes with 2x EPS and 4x PCIe slots, and a 120mm Fluid Dynamic Bearing fan.

Still, need to be sold on this? It has a 10-year long warranty and the $177 dollars price is not unreasonable either.

What We Like About This PSU:

  • Very durable with an excellent rating.
  • Silent and works at a great temperature even at full power.
  • Long 10-year warranty that proves it’s built with durability in mind.
  • Decent build quality.
  • Fully modular.

What We Don’t Like:

  • Two of the EPS connectors happen to be on the same cable, which is often something that is criticized about this. However, if you don’t need them to be separate – this isn’t something you should be worried about.

Corsair PSU

So, you need more power than half of the people who use a computer and want a reliable power supply that is 750W. Corsair, one of the best brands in the business, has you covered with a great PSU and it’s surprisingly cheaper than the 650W power supply that we mentioned above.

Corsair RMX Series, RM750x, 750 Watt
  • 80 Plus Gold certified for lower power consumption, less noise, and cooler temperatures.
  • Tuned for low noise operation even at full load; MTBF hours 100,000 hours.
  • Zero RPM fan mode for near-silent operation at low to medium loads.
  • Fully modular cables, so you only connect the cables your system needs.

First of all – Corsair is a brand that everyone is familiar with. Their products are durable and reasonably priced, and the RM750x is no exception. It comes with a Max DC Output of 750W, is rated at 80 Plus Gold efficiency, has 2 EPS and 4 PCIe connectors, and a warranty of 10 years. On top of all of that, it even has a low price of $120 dollars.

If you have a high-end graphics card, you should greatly consider giving this PSU a home inside your computer.

What We Like About This PSU:

  • Long 10-year warranty.
  • Great fan.
  • Handles high-end graphics cards and other PC components.
  • Fully modular.

What We Don’t Like:

  • Fan speed not as efficient as some of the other PSUs on this list.
  • The capacitors are in-cable.

Cooler Master PSU

It’s impossible to be someone who buys and upgrades components for their computer and does not know of Cooler Master.

They always have a budget option that people can go for and their products are fairly durable even when pushed to their limits, as long as the user does not try to do anything above what it was meant for. Although 850W is not that wildly different from 750W, it’s still possible to need this seemingly small distinction for your dream build.

Cooler Master MWE Gold 850 V2 Full Modular, 850W
  • 2 EPS Connectors: 2 EPS connectors included with all models for universal current generation motherboard compatibility.
  • High-Temperature Resilience: The new-gen offers an increase in operating temperature to its predecessor to a maximum of 50 degrees Celsius.
  • Fully Modular: Modular flat black cables reduce clutter, increase airflow, and improve overall efficiency and thermal performance.
  • Hydro-Dynamic Fan: The 120mm HDB fan creates less friction, for smooth and low RPM operations, while keeping the noise level down.

The MWE Gold 850 V2 is quite a mouthful name, but it’s a premium PSU so we’ll forgive that part. It has a max output of 850W which means that it can handle any GPU that you will throw its way, as well as other high-end PC components too. It has a 120mm hydro-dynamic fan that keeps things stable and comes with 2 EPS connectors.

On top of all of that, it only costs $110 dollars, which is almost a budget price yet without any compromise on the features. After all, it has 80 Plus Gold efficiency and a 5-year warranty.

What We Like About This PSU:

  • Supports high-end hardware with efficiency.
  • Rated 80 Plus Gold and comes with a 5-year warranty.
  • The fan is quiet and fairly cool too, since it features a 120mm hydro-dynamic fan.
  • Very reasonable price.
  • Good for overclocking.
  • Fully modular.

What We Don’t Like:

  • The positioning of the PCIe connectors might be a problem for some.

Thermaltake PSU

Thermaltake did not have the same brand endorsement as Corsair or Cooler Master, but they proved they were here to stay by releasing some of the best PSUs that we’ve seen in the past decade.

Although 1000W PSUs do exist, they belong to the same brands that we’ve listed before – so we’re jumping straight to an excellent 1050W PSU that is not too different in price from a 1000W power supply, but does offer better overall quality.

Thermaltake Toughpower PF1 ARGB 1050W
  • [2-Way RGB control] – Control light via “color” “Mode” Button (7 light modes/8 Colors) or via 5V ARGB Sync motherboard
  • [15 light modes via color mode button] – Wave/ spiral/ flow/ heartbeat/ ripple/ full lighted (Red, orange, yellow, green, blue, purple, pink, and white)/ spectrum mode/ light off
  • [Sync with motherboard RGB software] – controlling lights with as US aura Sync, Gigabyte RGB FUSION, MSI Mystic Light Sync and ASROCK polychrome through motherboards that have a 5V addressable RGB header.

If you’re still reading this list, it’s very obvious that you need something that packs a massive punch – and can take one too. The Thermaltake Toughpower PF1 is a very strong PSU that has an 80 Plus Platinum rating with 92% efficiency, a 140mm fan, Japanese capacitors, a good build, and a 10-year long warranty.

It also comes with RPG lighting with 18 addressable LEDs, and it’s a bit cheaper than some of the other 1000W/1050W alternatives in the market.

What We Like About This PSU:

  • Reasonably priced and has a 10-year warranty.
  • 80 Plus Platinum rating with a durable build.
  • Strong enough to handle anything that you throw at it, metaphorically.
  • Fully Modular.
  • RGB Lights with 16.8 million colors.
  • High-quality Japanese capacitors.
  • 140mm fan that activates after 40% load and still remains quiet.

What We Don’t Like:

  • The customer reports for the brand as a whole is a bit divided, as it ends up dying for some people over time – but that can be said about almost any brand in general with less likelihood of it happening.

SilverStone PSU

What do you need over 1500 watts of power for?! Though I suppose, it’s none of our business. SilverStone is one of those companies that are not that well-known due to entering competition a bit later than the others, but they have earned a reputation for being durable and effective.

If you want the best price and efficiency for a PSU that is over 1500W, then this 1650W power supply is the product that you have been looking for.

SilverStone Technology DA1650-G, 1650W
  • High efficiency with 80 PLUS Gold certification.
  • 24/7 continuous power output with 50℃ operating temperature.
  • 100% modular design with universal EPS / PCIe connector interface for maximum flexibility.
  • Ultra silent 135mm FDB fan with semi-fanless and delayed shut-off function.
  • Strict ±2% voltage regulation and low ripple & noise.

If you have built an absolute powerhouse and want to go even farther in pushing your PC to its absolute limits, then you need a power supply that can keep up.

The SilverStone DA1650-G has a whopping 1650W maximum DC output, features a high-quality build, can handle heavy temperatures, has 2x EPS and 12x PCIe connectors, is fully modular, and is for everything that it offers – the $449 price tag is rather reasonable.

Of course, it has Japanese capacitors, and 80 Plus Gold certification, and a 3-year warranty too.

What We Like About This PSU:

  • Fully modular.
  • Decent fan and handles high temperatures well.
  • 2x EPS and 12x PCIe connectors, which is the highest number of connectors on this list.
  • Very high-quality and can handle anything thanks to a 1650W capacity. The Japanese capacitors further support its efficiency.
  • High-quality build with a 3-year warranty and an 80 Plus Gold certification.

What We Don’t Like:

  • Can be a little noisy.
  • Not exactly a con, but is only useful for those who can make use of all of this power. Otherwise, no matter how heavy your PC gaming rig is, it doesn’t need a PSU of this power.

What’s the worst that a PSU failure can do?

It can fry several important components of your PC, such as the graphics card, the processor, hard drives, the motherboard, and RAM.

What is a bad PSU?

A PSU that is from a brand that is not known for its durability or has a poor efficiency certification is usually not safe for use. These things should be investigated before buying a power supply.

What is a good PSU?

A good PSU is determined by how reputable the brand that you are purchasing from is and what efficiency certification the power supply has. Bronze is on the bottom but can still have a decent rating, whereas Platinum is the highest quality/durability that you can buy.

How many watts do I need for my PSU?

There is no fixed answer to this question, as explained in detail within this article.

The watts that you need are determined by what components that you need to run and while having a bit extra never hurts for future upgrades, buying an 850W PSU when you only need 550, for example, is redundant and will waste your money.


And that’s a wrap on our thorough guide for the best PSU brands in 2021 for gaming PCs. We hope that you found the PSU that you need already and we’ll try to keep the list updated with future candidates of brands and power supplies that are excellent for use.

While you’re here, don’t forget to check out some of our other gaming PC buying guides too.

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