Best 1000w Power Supply: Bigger Capacity also Means Better

Based on the overall performance of your power supply unit (PSU), it can play a huge role in determining the reliability of your overall system. That said, it is crucial to be extra careful if you are planning to choose the perfect power supply for your system. If possible, go for one with higher capacity, such as 1000-watt units, especially if you intend to use your system for more high-end functions, like hard-core and serious gaming.

​Also, note that the best 1000w power supply is one with several protection features that can save your component, particularly the power supply itself, in case something goes wrong. However, you also need to compute the specific amount of power your system draws, so you can find a capacity point, which perfectly meets your demands.

​The best 1000w power supply units are actually considered monsters in the industry and are more suitable for those who are planning to build extreme setups. These PSUs are ideal choices if you are planning to run 3- to 4-way SLI or CrossFire while also overclocking your video card and CPU to reach record-breaking levels. It is a huge source of power for extreme needs.

But before we go to the factors of consideration for the best choice, let’s first highlight the five best products on the market.​

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Product

Summary​

My Rating​

Corsair HXi Series, HX1000i, 1000 Watt (1000W), Fully Modular Power Supply, 80+ Platinum Certified
Corsair HXi  HX1000i

​This product a great choice for high performance PCs with 80 PLUS Platinum certified efficiency

Corsair RM Series RM1000 CP-9020062-NA 1000 Watt PSU
Corsair RM RM1000

​Reliable operation, fully modular cabling, and optimized for silence

EVGA Supernova G2 1000W 120-G2-1000-XR Fully Modular Power Supply
EVGA Supernova    G2 1000W

​This product has a set of valuable features while still being offered at a reasonable price

Rosewill RBR1000-M 1000-Watt Bronze Series 80 Plus Bronze Certified Power Supply compatible with Intel Core i7 and i5
Rosewill RBR1000-M

This product satisfies your power-hungry virtual instincts, and keeps you running at your best.

HP 403781-001 DL380 G5 1000W Power Supply
HP DL380 G5

​Proliant Power Supply for G5 Servers


Choosing the Best 1000w Power Supply: Some Points to Consider

Once you made the decision to purchase a 1000-watt power supply, make sure to consider the following factors before buying the specific unit you need:

1. Connectors

You need to spend time researching about the specific connectors you need. Note that new PSUs usually feature a 24-pin ATX connector, which also serves as a 20-pin connector. High-end units can offer 24-pin connectors while low-end ones are capable of providing 20-pin connectors. You have to figure out what connectors you specifically need to ensure that you will pick a unit, which has them.

2. Energy Efficiency

Another factor that you have to consider in your search for the best 1000w power supply is the energy-efficiency rating. Make sure to pick a unit, which also has under load temperature rating, instead of room temperature. Those that have ratings of at least 80% are ideal.

3. Robustness

You can assess this factor by figuring out how a PSU can handle any specific changes in current. If you want a more reliable, robust and tolerant unit, then it would be better to go for larger components as the size also means that they have huge capacitors.

4. Modularity

It would be better if you pick a unit that comes with a modular system or design. Such design is a huge help in eliminating extra wires that tend to block the ability of the unit to cool its temperature. A modular design is also a huge help, especially if you want to do away with all the clutter and mess.

5. Looks

Of course, you also need to find a PSU with a great visual design. While this does not necessarily affect how the PSU functions, it would be better if you use a unit with a color theme, which perfectly matches that of your build.

Note that there are instances when you can use the PSU as a vital accent to your rigs, which makes it all the more important to consider the looks of your options before making your final decision.​

Top 5 Best 1000w Power Supply Reviews

Corsair HXi Series, HX1000i, 1000 Watt (1000W), Fully Modular Power Supply, 80+ Platinum Certified

Corsair HXi Series, HX1000i, 1000 Watt (1000W), Fully Modular Power Supply, 80+ Platinum Certified

Editor Rating

Corsair is one of the most prominent names in the computer components industry. It can deliver an extremely tight voltage control, almost silent operation plus a completely modular cable set. Aside from that, it features its Japanese 105°C capacitors, indicating its compatibility for high-performance systems that require utmost reliability. The good thing about this unit is that it also holds an 80PLUS platinum efficiency, which is helpful in decreasing excess heat, as well as operating cost.

​It can deliver up to 1000 watts of continuous and reliable power. Another nice feature integrated in this power supply is the Zero RPM fan mode designed to ensure that the fan won’t spin when the unit operates at either low or medium loads. Such feature guarantees that it will function quietly. Furthermore, it comes with built-in capacitors, as well as other carefully chosen inner components that aid in reducing electrical noise and coil whine.

Pros

  • Guaranteed to be highly efficient
  • Boasts of its ability to provide tight voltage control
  • Works quietly because it has a built-in Zero RPM fan mode
  • High power with its ability to deliver up to 1000 watts capacity
  • Lower electrical noise and coil whine because of the installed capacitors and inner components
  • Completely modular, eliminating the hassle of dealing with messy and hard to manage cables

Cons

  • Cables are not sleeved and a bit stiff.
  • Cable connections are subpar – They are also quite hard to connect.

Such flaws, however, are manageable and are greatly overpowered by all the benefits provided by this PSU from Corsair. That said, you will surely not regret making this power supply a vital component of your PC system.

Corsair RM Series RM1000 CP-9020062-NA 1000 Watt PSU

Corsair RM Series RM1000 CP-9020062-NA 1000 Watt PSU

Editor Rating

Corsair continues to prove that it is one of the best providers of power supply units with its RM Series RM1000 CP-9020062-NA 1000-watt unit. This fully modular power supply is designed in such a way that you can easily manage its cables and parts. Furthermore, it is optimized for high efficiency and silence. In fact, you will notice that it has low-noise capacitors, as well as transformers.

​Another highlight of the unit is its Zero RPM fan mode. This prevents the fan from spinning if the unit is just functioning under heavy load. Since it is also designed in such a way that it operates with low noise, you can also expect it to still work quietly even if you push it hard. Another remarkable fact about this unit is that it has a low-profile and fully modular cablings. This offers an assurance that you will enjoy neat and quick builds.

​Also included among its major highlights is the fact that it is 80PLUS gold certified; this specifically means that your power bill is still lower. Furthermore, it utilizes the Corsair Link system designed to help you monitor its power and fan speeds in real time.

Pros

  • Made by a reputable brand, Corsair
  • Has low-noise capacitors and transformers - carefully selected to eliminate coil whine and other background noise that can be annoying in quiet environments.
  • Guarantees lower power bill with its efficiency certification
  • Allows you to monitor the power and fan speeds in real time
  • Utilizes the Zero RPM fan mode, promoting an even quieter performance
  • Offers a fully modular power supply, promoting ease in cable management

Cons

  • Too thick and rigid cables
  • Badly and poorly positioned inline capacitors – Their location might prevent you from properly bending wires.

There is a great chance that you will be fully satisfied with this power supply as it is guaranteed to be reliable in operation while being built for silence. It is a good addition to your system, especially if you want it to function at its best.

EVGA Supernova G2 1000W Fully Modular Power Supply

EVGA Supernova G2 1000W 120-G2-1000-XR Fully Modular Power Supply

Editor Rating

This Supernova power supply unit from EVGA targets PC users and enthusiasts who wish to overclock their systems and improve their efficiency. This unit boasts of its fully modular cabling design, which is considered as the standard design for the majority of mid-level and high-end units. It also features a matte finish and powerful +12V rail system. You will also notice that its dimensions are quite large.

​One good thing about this PSU from EVGA is that it has a set of valuable features while still being offered at a reasonable price. It boasts of its 80PLUS Gold certification, which proves that it has up to 90% energy efficiency when used under standard loads. Furthermore, it comes with a 140mm double-ball bearing, as well as high-quality Japanese brand capacitors designed to boost its reliability for the long term.

​With the heavy-duty protection capability of the unit, you are also assured that it will continue to deliver excellent performance without compromising the safety of your overall system. With its ability to deliver 1000-watt continuous power, you are guaranteed of its top-notch performance.

Pros

  • Reasonably priced and reliable
  • Has up to 90% energy-efficiency
  • Takes pride of its fully modular cabling design
  • Has a matte finish, making it showcase an attractive look
  • Ideal for those who would like to overclock their systems and improve efficiency

Cons

  • Durability still needs to be tested.
  • Manual instructions lack more info, making them quite hard to follow

The solid design and reliable power of this power supply unit from EVGA are among its strongest points. You will also love the fact that it is reasonably priced despite being packed with lots of useful features.

Rosewill RBR1000-M 1000-Watt with Intel Core i7 and i5

Rosewill RBR1000-M 1000-Watt Bronze Series 80 Plus Bronze Certified Power Supply compatible with Intel Core i7 and i5

Editor Rating

The RBR1000-M 1000-watt power supply unit from Rosewill is compatible with Intel Core i5 and i7. It combines attractiveness and performance in one and works very well for systems that require a lot of power. Enclosed in a black, sleek shell while also boasting of its cool blue light, you will fall in love with this PSU as it provides your system with an attractive yet technologically advanced look.

​Many consider this as the best 1000w power supply as it continuously delivers its promised power output. Furthermore, it takes pride of its 80PLUS bronze certification. Such offers a guarantee that it can deliver superior electrical efficiency regardless of the load level you intend to use it to. Aside from that, it features an active power factor correction. This is a huge help if you want to deliver reliable and clean power to your system.

​Another highlight of this unit is its 135-mm dual-ball bearing fan with a blue LED light. It adds to the attractiveness of the unit. The auto-fan speed control feature is also an advantage as it provides the right balance between low noise levels and high cooling performance.

Pros

  • Superior energy-efficiency
  • Works well for both Intel Core i5 and i7
  • Attractive look without sacrificing performance
  • Has a cool blue light, further enhancing its look
  • Consistently delivers its promised 1000w power output
  • Has the right balance between excellent cooling performance and low noise

Cons

  • Not fully modular
  • A bit longer than expected, which is quite a hindrance when planning to work with a machine that has a small form factor

Still, despite having just a semi-modular cable design, it is still possible for you to get fully satisfied with the features installed in the unit as well as its performance. Furthermore, it has a comprehensive protection, making it even more useful for DIY enthusiasts.

HP 403781-001 DL380 G5 1000W Power Supply

HP 403781-001 DL380 G5 1000W Power Supply

Editor Rating

Another high-performance 1000-watt power supply is the 403781-001 DL380 G5 from HP. You can expect this unit to deliver a proliant power supply designed for G5 servers. With its 800w-1000w maximum power output, you have an assurance that it will deliver well plus satisfy your need for a powerful PSU. Also, it features a nominal input voltage of around 100 to 240Vrms.

​The power supply works perfectly as mentioned by most of its users. It is also a good replacement to HP’s old power supply version – the DL380 G5 server. The good thing about this PSU is that it also has a solid build, which is a true measure of its ruggedness, stability and durability.

Pros

  • Solid build
  • Good packaging
  • High-performance
  • Delivers up to 800 to 1000 watt power output
  • Provides high amperage, which also contributes to its excellent performance

Cons

  • Tends to produce noise when working

HP’s power supply unit is still quite new in the market and its durability and performance is tried only by a few users. But according to its many reviews, it has a great potential, so it’s no longer surprising if it will also turn into the best 1000w power supply unit in the future.

Conclusion

Your choice of the best 1000w power supply unit can really make a lot of difference in the performance of your PC. That said, it is crucial for you to spend time conducting an extensive research about all your options. Make sure to spend time assessing your needs, as well, as this is the key to getting the best 1000w power supply, which has a great potential of providing you with the highest level of satisfaction.

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