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4 Best 1000W Power Supply 2023 (For Every Use)

1000W power supplies are going to become more common, there’s no doubt about that, and it’s evident as power hungry graphics cards like the RTX 4090 are getting released.

With the release of NVIDIA RTX 40 series graphics cards, the average power requirement for computers is increasing significantly. So it’s important that you pick up a 1000W power supply if you’re looking to run the latest GPUs.

With these power hungry components becoming more commonplace on the market, it’s become extremely common to underpower your PC, and this can have huge implications such as underperformance and potential damage to the system.

So, if you’re looking to power your gaming PC, or your video editing builds I have some 1000W power supply recommendations down below, but my favorite would have to be the Seasonic PRIME 1000W. This is because I prioritize longevity, and it’s able to provide me that with high quality components, and its 12 year long warranty.

In a hurry? I’ve compiled a list of the 1000W Power supplies in a table below!

Best Overall PSU
Seasonic PRIME 1000 Titanium SSR-1000TR 1000W 80+ Titanium ATX12V & EPS12V Full Modular 135mm FDB Fan Power On Self Tester 12 Year Warranty Power Supply
Best For Gamers
Corsair HX Series, HX1000, 1000 Watt, Fully Modular Power Supply, 80+ Platinum Certified, CP-9020139-NA
Best Mid Tier PSU
EVGA Supernova 1000 P2 80+ Platinum, 1000W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1000-XR
Best Budget PSU
EVGA SuperNOVA 1000 G6, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 140mm Size, Power Supply 220-G6-1000-X1
Seasonic PRIME 1000 Titanium SSR-1000TR 1000W 80+ Titanium ATX12V & EPS12V Full Modular 135mm FDB Fan Power On Self Tester 12 Year Warranty Power Supply
Corsair HX Series, HX1000, 1000 Watt, Fully Modular Power Supply, 80+ Platinum Certified, CP-9020139-NA
EVGA Supernova 1000 P2 80+ Platinum, 1000W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1000-XR
EVGA SuperNOVA 1000 G6, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 140mm Size, Power Supply 220-G6-1000-X1
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$345.66
$254.99
$222.46
$292.90
Best Overall PSU
Seasonic PRIME 1000 Titanium SSR-1000TR 1000W 80+ Titanium ATX12V & EPS12V Full Modular 135mm FDB Fan Power On Self Tester 12 Year Warranty Power Supply
Seasonic PRIME 1000 Titanium SSR-1000TR 1000W 80+ Titanium ATX12V & EPS12V Full Modular 135mm FDB Fan Power On Self Tester 12 Year Warranty Power Supply
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$345.66
Best For Gamers
Corsair HX Series, HX1000, 1000 Watt, Fully Modular Power Supply, 80+ Platinum Certified, CP-9020139-NA
Corsair HX Series, HX1000, 1000 Watt, Fully Modular Power Supply, 80+ Platinum Certified, CP-9020139-NA
$254.99
Best Mid Tier PSU
EVGA Supernova 1000 P2 80+ Platinum, 1000W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1000-XR
EVGA Supernova 1000 P2 80+ Platinum, 1000W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1000-XR
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$222.46
Best Budget PSU
EVGA SuperNOVA 1000 G6, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 140mm Size, Power Supply 220-G6-1000-X1
EVGA SuperNOVA 1000 G6, 80 Plus Gold 1000W, Fully Modular, Eco Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 140mm Size, Power Supply 220-G6-1000-X1
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$292.90

EVGA P2 1000W | Best Mid Tier 1000W PSU

EVGA 1000W PSU
Credit: EVGA

Specifications

  • Wattage(Max Output): 1000W
  • Efficiency Rating: 80+ Platinum
  • Length: 200 mm
  • Modular: Fully Modular
  • Form Factor: ATX
  • Connectors(EPS + PCIE): 2, 8
  • Warranty: 10 Years

Reasons To Buy

  • Fully Modular
  • Silent Whilst Gaming
  • 10 Years Warranty
  • 80+ Platinum(Highly Efficient)
  • High Quality 140mm Double Ball Bearing
  • Japanese Capacitors
  • Amazing Power Quality, Great For Overclocking

Reasons To Avoid

  • ECO Mode Not Designed For Gaming/Heavy Loads
  • Stiff Quality Wires (May Be Difficult For Cable Management)
  • Coil Whine

Review

Here’s an amazing power supply offered by EVGA, most power supplies have 8 year long warranties, so 10 years confirms that the power supply is of decent quality. Longer warranties should always be sought after, the PSU is the most important component in my experience.

Gamers are going to benefit the most from this power supply, it’s quiet thanks to the 140MM double ball bearing fans; this will maintain the immersion in game. As an avid gamer, the last thing I’d like to hear is power supply fans ramping up, the EVGA P2 1000W is able to maintain acceptable acoustics even at max load.

However, one potential issue with this power supply which could negatively impact gamers is the coil whine issue, you may experience this, but it depends on the specific unit you buy. If you experience coil whine, it can be annoying if you’re gaming or performing professional work, so I fully understand why you’d avoid this product.

Alternative: Corsair RM1000x (2021)

Corsair HX1000 | Best 1000W PSU For Gamers

corsair 1000w power supply
Credit: Corsair

Specifications

  • Wattage(Max Output): 1000W
  • Efficiency Rating: 80+ Platinum
  • Length: 180MM
  • Modular: Fully Modular
  • Form Factor: ATX12V
  • Connectors(EPS + PCIE): 2, 8
  • Warranty: 10 Years

Reasons To Buy

  • 10 Year Long Warranty
  • Fully Modular
  • Highly Efficient (80+ Platinum)
  • Reputable Brand
  • Runs Pretty Cool Especially Under Load
  • Runs Exceptionally Quiet, 0 RPM Mode
  • User Can Pick Between Single +12V Rail Or Multiple +12V Rails
  • 100% Japanese Capacitors
  • Simple And Easy To Install

Reasons To Avoid

  • Bulky Cables (May inhibit Cable Management Options)

Review

If the EVGA P2 1000W wasn’t overkill enough, then the Corsair HX1000W will ensure that you’ll have the best experience in terms of power delivery.

My favorite aspect about the HX1000W is the ability to switch between +12V rail or multiple +12 rails, what this does is ensure you have clean and reliable power across all your components.

It doesn’t suffer from any of the coil while issues the P2 1000W has, and it also comes with 10 years of warranty. One of the most annoying things I’d hate to go through is coil whine, so I’m happy whenever I use the Corsair HX1000W.

Also, my second favorite aspect is that it is 80+ rated, I like knowing that my power supply is fairly efficient with the power it pulls from the wall.

The only potential downside to this power supply is that the cables can be a hassle to work with due to them being bulky and potentially stiff out of the box, this can slow down cable management. Difficulties with cable management can ultimately lead to laziness and a less than desirable end result.

Alternative: be quiet! Straight Power 11 Platinum 1000W

Seasonic PRIME 1000W | Best Overall 1000W PSU

Seasonic power supply 1000w
Credit: Seasonic

Specifications

  • Wattage(Max Output): 1000W
  • Efficiency Rating: 80+ Titanium
  • Length: 170 mm
  • Modular: Fully Modular
  • Form Factor: ATX12V
  • Connectors(EPS + PCIE): 2, 8
  • Warranty: 12 Years

Reasons To Buy

  • Super Long 12 Year Warranty
  • Most Efficient (80+ Titanium)
  • Hybrid Fan Control (Keeps Internals Cool And Reduces Noise)
  • Voltage Regulation (Keeps The Voltages Tight Good For Overclocking)
  • Decent Cable Quality
  • Exceptionally High Build Quality
  • Very Silent, Pro For Gamers
  • High Quality FDB Fans
  • Transient Response

Reasons To Avoid

  • Cable Length May Be An Issue (Inhibits Cable Management)
  • Pricey For Some

Review

Now, it’s pretty rare to find a power supply that offers 12 years of warranty, but when they do, it’s a testament to the high quality components they use within the power supply. This is undoubtable my favorite power supply on the list, I will always prioritize durability and longevity in crucial products such as a power supply.

So I can be rest assured that this power supply will last at least a decade, and will go through several graphics cards, processors, and motherboards. By the time the power supply needs replacing, the original components would be long gone and outdated.

Secondly, I touched on how stiff cables are pretty annoying, well this power supply has cables that are easy to cable manage. So there’s less chance of an undesirable outcome when building your PC.

Thirdly, the power supply is 80+ rated, this is extremely efficient, in fact, it’s the most efficient a power supply can get. This is a testament to the high quality components that are present in this particular unit.

Overall, if you want the highest quality power supply (which everyone should want), this power supply will ensure the longevity and safety of your build.

Now, the only potential downsides to this power supply has to do with the cable length, this can be annoying when trying to route the cables.

Alternative: Super Flower Leadex Platinum 1000W 80 Plus Platinum

EVGA SuperNOVA G6 1000 | Best Budget 1000W PSU

evga supernova 1000w psu
Credit: EVGA

Specifications

  • Wattage(Max Output): 1000W
  • Efficiency Rating: 80+ Gold
  • Length: 140 mm
  • Modular: Fully Modular
  • Form Factor: ATX12V
  • Connectors(EPS + PCIE): 2, 8
  • Warranty: 10 Years

Reasons To Buy

  • Affordable, Great For Budget Seekers
  • High Quality Japanese Capacitors
  • Ultra Quiet ECO Mode
  • 10 Year Long Warranty
  • Fully Modular
  • 12V Load Regulation
  • Good Build Quality

Reasons To Avoid

  • Can Get Noisy Under Huge Loads (Coil Whine)
  • Inefficient During Standby

Review

Purely from a performance perspective, the SuperNOVA G6 1000W is exceptional, it’s able to provide high quality power whilst keeping things cool. Overall, this is an acceptable power supply for a standard gaming PC that doesn’t require anything too over the top.

Its performance levels are pretty similar to the previous versions (G2, and G3) which is why the G6 1000W is such a great power supply.

Overall, the build quality is decent, it’s not something that I’d be concerned with if I paired it with a expensive RTX 40 series graphics card. It uses high quality Japanese capacitors which is always a good sign, and it has a long 10 year long warranty, so the PSU overall is reliable.

On top of the great performance, the power supply is compact coming in at only 140MM, compact power supplies are significantly easier to install and cable manage.

The only potential downside is that it can get noisy under huge loads, this means gamers will suffer. Also, you may suffer from coil whine, this depends on the specific unit you receive.

Alternative: EVGA Supernova 1000 P5, 80 Plus Platinum 1000W

5 Tips To Consider Before Purchasing A Power Supply

1. Don’t Assume Higher = More performance: Many assume that higher wattage power supplies are better for performance, this isn’t the case. You won’t need a 1600W Power supply unit for a system that only requires 600W.

2. Pay Attention To Efficiency Ratings: Higher efficiency power supplies use better components which results in the power supply generating less heat and consuming more energy.

3. Research The Brands: There are so many power supply brands out there, and not all of them produce great products. Reliable manufacturers are – Corsair, Seasonic, EVGA.

4. Know What Type Of PSU You Need: Do you need a modular or a non-modular power supply? Modular power supplies allow you to add and remove cables, none of them are soldered. Non-modular units come with all the necessary cables pre-attached, you cannot remove any of them.

5. Don’t mix and match cables: If your choice of power supply is fully modular, you’ll notice you can remove all the cables. While this is fine for cable management, you shouldn’t include cables that didn’t come with the PSU, this is why some power supplies fail and bring other components with them.

Capacity & Efficiency:

Before you purchase a power supply, make sure it has an 80% certificate. Most power supplies will have this nowadays, but just keep an eye out.

LOAD:20%50%100%
80+ PLUS:80%80%80%
80+ PLUS BRONZE:82%85%82%
80+ SILVER:85%88%85%
80+ GOLD:87%90%87%
80+ PLATINUM:90%92%89%
80% TITANIUM:92%94%90%

Also Read: Best 1200W Power Supply

Also Read: Best 1600W Power Supply

Also Read: Best 850W Power Supply

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