Best Power Supplies (PSU) for Your PC Windows Central 2021

The 650W SuperNOVA P2 combines the best in efficiency with quality components and brilliant features, and it's all matched by a 10-year warranty.

Our pick


The PSU for you

This 650W SuperNOVA P2 from EVGA is fully modular, enabling you to route only cables that you need for components. It also has an Eco Mode and sports the Platinum rating badge, powering even enthusiast rigs.

Who should buy the EVGA SuperNOVA P2?

The EVGA SuperNOVA P2 has more than enough power for most PCs and is efficient for some savings. Paired with its 10-year warranty, it's a PSU you can buy with confidence.

Is it a good time to buy the EVGA SuperNOVA P2?

The EVGA SuperNOVA P2 can power most ATX gaming systems in 2019 with overhead to support future hardware on the horizon. It's available at a great price and a perfect pairing for most builds.

Reasons to buy

  • Can power most PCs
  • Fully modular
  • 10-year warranty
  • Quiet

Reasons not to buy

  • Strange fan profile

Why the EVGA SuperNOVA P2 is a superb PSU

The SuperNOVA P2 (650W) took our top spot for PSUs simply because it represents a solid balance between affordability, efficiency, and available features. Whether you're looking at the platinum 80+ efficiency rating or the 10-year warranty, it's a superb option for anyone looking to provide more power to their PC for upgrades or start scratch with a new build.

The EVGA SuperNOVA P2 delivers a balance between affordability, efficiency, and features.

The PSU is fully modular, ensuring you only use what cables are required by the PC. It also contains Japanese capacitors for added peace of mind that incredibly reliable and capable components are deployed. There are also a number of protection measures in place to protect not only the unit but the PC and everything connected to the PSU from power surges and more.

It's also quiet. Real quiet. If you're going for a near-silent water-cooled setup and require a PSU that has the ability to run without a fan up to a certain draw amount (and don't particularly want a fanless unit), the SuperNOVA P2 is an ideal choice. Even when the fan kicks in it's difficult to hear the blades spin from a distance.

You really can't go wrong with the 650W SuperNOVA P2, which packs more power than you'll likely need.

Alternatives to the EVGA SuperNOVA P2

While the EVGA SuperNOVA P2 is hard to beat, we've lined up four alternatives for the full spectrum of PC builders.


SeaSonic G Series

Pick up the PSU leader

SeaSonic is a well-known brand in the PSU industry. Not only does the company sell its own units, but other manufacturers use its platforms for competing PSUs. The G Series is SeaSonic's high-end, performance line of power plants and this 550W unit is more than enough for most ATX PCs.

The SeaSonic G Series is a reputable and reliable pick for those after silent performance. It's among the top-tier PSUs, and also SLI and CrossFire ready for multiple GPU setups. You can't go wrong with this SuperNOVA P2 alternative.

Value pick

EVGA 500 W1

Don't let the price fool you

EVGA's more affordable 500W power supplies leave out the more fancy features like modular cabling to bring the price down to an absolute minimum. Sure, it's cheaper than other PSUs on the market and the efficiency rating isn't the best, but it's a safe bargain for ATX PCs on a tight budget.

The 500 W1 proves you don't need to spend the big bucks for a decent PSU. However, without modularity, you'll need to wrangle some cable management in the process.

Old reliable


A powerful collaboration.

The E-series PSUs leverage Seasonic internals alongside NZXT's CAM monitoring software. They keep the power flowing with high-quality hardware and a welcomed 10-year warranty.

NZXT and Seasonic assemble a powerful duo for ATX-compatible PC power. Overlooking its sometimes-loud fan, this 650W PSU is great for both every day and enthusiast setups.


Corsair AXi Series

All the power you need

While we did state above that you don't really need anything more than 500W for your gaming PC, there are those rare times when you need quite a fair amount of electricity. To supply all this energy to an insane enthusiast build, Corsair's AXi Series, specifically the 860W option, will be more than enough. There are 1200W and 1500W variants of the AXi available too.

The Corsair AXi Series is ideal for enthusiast setups and power-hungry ATX rigs. However, don't get this unless you really need it; we don't want you wasting money on more than you need.

Bottom line

It's difficult to choose a good PSU for your build as there are many out there from reputable companies. PCs only really need around 500W with a single dedicated GPU and a cheap 1600W PSU from an unknown brand will likely not be as good as a 500W option from the likes of Corsair. That all said, EVGA's SuperNOVA P2 650W solution is an excellent all-rounder.

One thing we strongly recommend avoiding is saving too much money. It's best to spend a little more on this component to get a unit that sports necessary protective features, as well as great reliability and support from the manufacturer. Just remember one thing when shopping: wattage isn't everything. Don't go for the highest number you see.

Our pick


The PSU for you

This 650W SuperNOVA P2 from EVGA is fully modular, enabling you to route only cables that you need for components. It also has an Eco Mode and sports the Platinum rating badge, powering even enthusiast rigs.

Credits — The team that worked on this guide

Rich Edmonds is a word conjurer and editor at Windows Central, covering everything related to Windows, gaming, and hardware. You can follow him over on Twitter at @RichEdmonds.

Matt Brown is a staff writer at Windows Central focusing on Xbox and PC. After realizing he wasn't good at video games, he stuck to this writing thing instead. You can follow him on Twitter @mattjbrown.

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