4 Best 1200W Power Supplies 2021

Who Needs A 1200W Power Supply?

1200W power supplies are gaining popularity as computer components grow more and more power hungry. The RTX 30 series cards already draw a lot of power such as the RTX 3090 and the 3080. The future RTX 40 series cards are expected to be power hogs, so an adequate power supply is necessary.

All of the power supplies on this list will be in the ATX form factor as SFX power supplies just recently only crossed the 1000W mark. Anyways, 1200W power supplies are great if you’re running multiple graphics cards or a server of some sort. Even a small crypto mine can run off these units.

But if you’re just a typical gamer, a 1200W power supply is a great investment as it’ll provide more than enough headroom for the future hardware to come.

For most people, an 850W – 1000W power supply can do the job perfectly, and that is probably the sweet spot in terms of power supplies. Larger power supplies don’t increase performance unless your components we’re being underpowered.

Pros of a 1200W PSU:

  • A lot of headroom for the future. Future components will consume more power.
  • More durable and longer warranties.
  • Quieter

Cons of a 1200W PSU:

  • An expensive investment

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%

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For Dual Systems
Phanteks (PH-P1200PS) 80+ Platinum - Built-in Power Splitter 1200W Fully Modular Design Dual System Support Power Supply
Best For Gamers
ASUS Rog Thor 1200 Certified 1200W Fully-Modular RGB Power Supply with LiveDash Oled Panel
Most Effective
Corsair HXi Series, HX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply
Best Reputation
EVGA Supernova 1200 P2 80+ Platinum, 1200W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1200-X1
Phanteks (PH-P1200PS) 80+ Platinum - Built-in Power Splitter 1200W Fully Modular Design Dual System Support Power Supply
ASUS Rog Thor 1200 Certified 1200W Fully-Modular RGB Power Supply with LiveDash Oled Panel
Corsair HXi Series, HX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply
EVGA Supernova 1200 P2 80+ Platinum, 1200W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1200-X1
Wattage
1200W
1200W
1200W
1200W
Efficiency Rating
80+ Platinum
80+ Platinum
80+ Platinum
80+ Platinum
Modular
Fully Modular
Fully Modular
Fully Modular
Fully Modular
Warranty In Years
12
10
10
10
Prime Status
-
-
-
Star Rating
-
-
-
-
For Dual Systems
Phanteks (PH-P1200PS) 80+ Platinum - Built-in Power Splitter 1200W Fully Modular Design Dual System Support Power Supply
Phanteks (PH-P1200PS) 80+ Platinum - Built-in Power Splitter 1200W Fully Modular Design Dual System Support Power Supply
Wattage
1200W
Efficiency Rating
80+ Platinum
Modular
Fully Modular
Warranty In Years
12
Prime Status
Star Rating
-
Check Price
Best For Gamers
ASUS Rog Thor 1200 Certified 1200W Fully-Modular RGB Power Supply with LiveDash Oled Panel
ASUS Rog Thor 1200 Certified 1200W Fully-Modular RGB Power Supply with LiveDash Oled Panel
Wattage
1200W
Efficiency Rating
80+ Platinum
Modular
Fully Modular
Warranty In Years
10
Prime Status
-
Star Rating
-
Check Price
Most Effective
Corsair HXi Series, HX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply
Corsair HXi Series, HX1200i, 1200 Watt, 80+ Platinum Certified, Fully Modular - Digital Power Supply
Wattage
1200W
Efficiency Rating
80+ Platinum
Modular
Fully Modular
Warranty In Years
10
Prime Status
-
Star Rating
-
Check Price
Best Reputation
EVGA Supernova 1200 P2 80+ Platinum, 1200W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1200-X1
EVGA Supernova 1200 P2 80+ Platinum, 1200W ECO Mode Fully Modular NVIDIA SLI and Crossfire Ready 10 Year Warranty Power Supply 220-P2-1200-X1
Wattage
1200W
Efficiency Rating
80+ Platinum
Modular
Fully Modular
Warranty In Years
10
Prime Status
-
Star Rating
-
Check Price

Phanteks Revolt X 1200W

1200W For Dual Systems

The Phanteks Revolt X 1200W is an innovative power supply which has the ability to power up to 2 motherboards at the same time. It has a size of 170MM which is actually the smallest power supply on this list. This is great as it’s compatible with more cases.

It’s comforting to know that the Revolt X uses top quality components such as Japanese capacitors to extend its lifespan and deliver consistent power to your components. The efficiency rating is 80+ Platinum which is great for not wasting electricity as heat.

The Phanteks Revolt X 1200W has other versions such as the Revolt PRO with a capacity of 1000W and 850W. There is also the AMP series which have 650 and 750W power supplies. The Revolt X is the only unit to reach 1200W

As for the pricing, the Revolt X costs around $250 which is a fairly nice price for the performance it offers. If you’re looking for a great bang for your buck, then the Revolt X 1200W certainly can offer that.

What Type Of Systems & Components Is This PSU Compatible With?

Wattage1200W
Efficiency Rating80+ Platinum
Length170MM
Modular Fully Modular
Recommended GPURTX 30+
Form FactorATX
PCIe 6+2-Pin Connectors8
SATA Connectors16
EPS Connectors4
Molex 4-Pin Connectors3

The Phanteks Revolt X 1200W is a great power supply for multiple GPU systems, small crypto mines, and servers. You can run RTX 3080’s and 3090’s with this power supply, and also some multi GPU setups such as 2x2080TIs.

These types of power supplies are great for 24/7 usage which is mandatory for servers. Most users settle for 80+ Platinum+ PSUs as they can save money with the most efficient power supplies.

Due to the size of the power supply, it’ll be compatible with a lot of PC cases compared to other 1200W units. This is great if you really need it for a Mini-ITX build.

What Is The User Experience?

Buyers have stated that the Revolt X 1200W runs quietly which is great if you value a quiet experience whether it’s for gaming or some sort of professional work.

Buyers of this power supply have said they’re running 3 GPUs on this power supply and it has been running fine ever since. This shows the power supply is great at handling heavy loads which is important to prevent stuttering and performance issues.

Users are running this power supply with dual systems since this power supply can support 2 motherboards. If you’re looking for a dual system power supply, this unit can possibly help you. A user’s experience with this power supply has been great as they’re running an I9 9900K + an I7 8086K + an RTX 2080TI.

Features Of The Phanteks Revolt X

Dual System Support. The Phanteks Revolt X is perfect if you’re looking to run a dual systems setup and don’t want a secondary power supply. Perfect if you want a Gaming+Streaming, Gaming+Server or Gaming+Workstation, the power supply can handle it all.

The Phanteks Revolt X 1200W is optimised for dual system cable management. This is a benefit as dual power supply setups can get very messy and confusing when attempting to cable manage it.

Compared to using two different power supplies, the efficiency ratings can be quite poor. Phanteks Revolt X 1200W essentially shares the load between both systems which improve the efficiency consequently saving power.

Under 40+ load, the power supply will shut off the fan for quietness. This is great as it reduces noise and increases the durability of the fan.

Pros:

  • The power supply runs quietly since the fan is designed to shut off under 40% load. which is beneficial for gamers who hate loud computers, and workers that require quietness.
  • Very long warranty. Seasonic is the OEM of this product, and SeasSonic are known for selling some of the best quality power supplies. 12 Years is how long the warranty, and that is very long for power supplies.
  • Perfect for dual system builds. Offers superior cable management compared to dual power supply setups. Also, you’ll save money in the long run as the power supply splits the load between both systems which ends up being more efficient than two units.

Cons:

  • Only comes in 80+ Platinum. An 80+ Titanium version would’ve been great for different types of builds such as servers, but it shouldn’t make a big difference.
1200W PSU for Gamers

Asus ROG Thor 1200P

The ASUS ROG Thor 1200W is marketed to gamers and it looks aesthetically good with the RGB lighting. It is 80+ Platinum rated for excellent efficiency when gaming, running servers or other systems that run 24/7.

The ASUS ROG Thor 1200W is durable with their 100% Japanese capacitors; Japanese capacitors are better than traditional capacitors as they are often quality controlled, and deliver cleaner power. ASUS backs this up with their 10 Year long warranty for this product.

The ASUS ROG Thor 1200P is compared with ROG STRIX power supplies which essentially have the same branding. The ROG Thor 1200P is the only unit to be rated for 80+ Platinum out of the ROG STRIX and ASUS TUF line of products which are 80+ Gold and Bronze. ASUS STRIX power supplies are 650W, 750W, 850W, and 1000W, and the ASUS TUF power supplies are 450W and 550W.

As for the pricing, the ASUS ROG Thor 1200P costs around $230 which isn’t bad pricing, gamers will definitely love this power supply as they can customize the lighting to fit the overall aesthetics.

What Type Of Systems & Components Is This PSU Compatible With?

Wattage1200W
Efficiency Rating80+ Platinum
Length190MM
Modular Fully Modular
Recommended GPURTX 30+
Form FactorATX
PCIe 6+2-Pin Connectors8
SATA Connectors12
EPS Connectors2
Molex 4-Pin Connectors5

In terms of wattage, the ROG Thor 1200P can handle a lot of hardware. 1200W is a lot and it can be used to power servers, crypto mines, and multi graphical setups.

For 24/7 usage, this power supply will fare well in terms of durability and power delivery. The Japanese capacitors will supply your system with clean power, and the 80+ Platinum rating will help prevent useful energy being wasted as heat.

For size, it is 190MM which is decently sized and can easily fit in many Mini-ITX builds if your build warrants such a large power supply.

What Is The User Experience?

Buyers of the ASUS ROG Thor 1200P have said that the power supply looks and feels premium which is obviously a good thing as cheap and ugly looking power supplies tend to blow up more often.

Users have stated the power supply design is useful as there is a wattage indicator on the side of the power supply. Through this, you’ll be able to see how much power your PC is drawing. This is a great feature as you can easily check if you have headroom for more components or overclocking of already existing ones.

A buyer has said that the ASUS ROG Thor 1200P is nearly dead silent whilst running. This is great if you hate the sound of fans when gaming or being productive with work.

However, a user experience shows that the power supply only works with cables that come with the unit. This is common with fully modular units, you shouldn’t mix and match your cables.

Features Of The Asus ROG Thor 1200P

Featuring an OLED display, this is a great feature aesthetically as well as being quite useful for easily checking how much power your computer is drawing. This feature will show you how much headroom you have for overclocking or adding more hardware such as graphics cards and storage devices.

The ASUS ROG Thor 1200W uses Japanese capacitors which is common with high quality units; Japanese capacitors are great for increasing the lifespan and durability of a unit, they also are said to deliver cleaner power which is beneficial for the stability of your system.

ASUS Aura Sync is the RGB software they use to sync with other Aura Sync compatible products as well as customize the lighting. The power supply uses addressable RGB lighting which is better than non addressable LEDs.

Pros:

  • Premium feel. Usually high quality products come with a premium feel which poor and dangerous products tend not to have.
  • High quality components to extend lifespan. The Japanese capacitors are great for increasing the lifespan of a product, they also deliver cleaner power for stability.
  • Zero RGB mode which will shut off the fans if the system isn’t consuming enough power. This is great for acoustics and durability of the fans.
  • Sleeved cables which increase the durability of the cables, and they also look great aesthetically.

Cons:

  • You cannot mix and match cable, you can only use the cables that come with the power supply. Using incompatible cables can destroy your hardware.

Corsair HXi 1200i

Durable 1200W PSU

Corsair produces excellent power supplies, and the HXi 1200i is no different. It is a 1200W ATX unit that is also 80+ Platinum rated which is perfect for small servers, multi GPU setups and mining systems.

Corsair products are known for using top of the line components to ensure its safe, durable and effective. It uses Japanese capacitors rated for 105C, and they deliver cleaner and more stable power compared to traditional capacitors.

The Corsair HXi 1200i has a 1000W version called Corsair HXi 1000i. It uses the same build as the 1200i and is great if you require less power. There is also a 1600W power supply called AXi which is slightly more durable due to it having superior components, but it also costs more.

Price wise, it costs around $300 which makes sense since Corsair sells top of the line power supplies. Essentially, you get what you pay for with PSUs.

What Type Of Systems & Components Is This PSU Compatible With?

Wattage1200W
Efficiency Rating80+ Platinum
Length200MM
Modular Fully Modular
Recommended GPURTX 30+
Form FactorATX
PCIe 6+2-Pin Connectors6
SATA Connectors12
EPS Connectors2
Molex 4-Pin Connectors12

With the HXi 1200W, you’ll be able to power almost any type of build which is reasonable. This means you can run multiple graphics cards such as 2x2080TI’s RTX 3090’s and small servers.

If you need a power supply that can run 24/7 whether you never turn your PC off, or you have a small server, this power supply is a reliable option as Corsair power supplies use great quality components.

The HXi 1200W is on the large side in this line-up of PSUs, it is 200MM which isn’t terribly large, but your options are less if you’re looking to install it into a Mini-ITX case.

What Is The User Experience?

A buyer of the product has stated that they’ve used Corsair products for over 13 years which is great for the consumer. This gives an idea of how reliable Corsair products are, if you’re looking to run a build everyday non stop, this is an excellent option for you.

A user experience shows the user running multiple SSDs without any issues. Also, to take full advantage of 1200W of power, sometimes you might have to use up to 4 graphics cards depending on how powerful they are.

A user experience shows the care and quality Corsair has for their products. It is stated that the power supply comes with a Velcro bag for you to store all your cables, also if you’re making a completely new build, it comes with all the necessary cables you need.

Many users have reported not enjoying the software due to it being dull with its features. Buyers of this power supply stated the ICUE software doesn’t display enough information about the power supply, and how much the computer is costing you per month.

Features Of The Corsair AXi 1200W

Comes with 100% Japanese capacitors rated for 105C. This is what separates high efficiency power supplies with lower efficiency ones. You must use high quality components to reach such efficiencies.

Quiet and efficient operation. The power supply has Zero RPM mode which shuts off the fan if the PC isn’t pulling enough power, this is great for when you’re not gaming or the PC is idle. Also, since it’s 80+ Platinum, it reduces the operating cost of your PC.

Toggle single +12V rail or multi +12V rail mode for flexibility on how you use your power supply. Single rail power supplies are better for pure amperage, and multi-rail power supplies are safer.

OCP Protection, UVP Protection, SCP Protection, OPP protection, and OTP protection to provide maximum safety to your components.

Pros:

  • Very quiet, this is due to the Zero RPM mode which shuts off the fan under a low enough load. This is great if you’re not gaming, or your PC is running idle.
  • Superior components. The HXi 1200W uses top of the line Japanese capacitors rated for 105C which means the power supply will be able to deliver better quality power under harsher conditions compared to traditional capacitors.
  • 24/7 Usage. This power supply will be able to run 24/7 thanks to its high quality components such as Japanese Capacitors.

Cons:

  • The ICUE software isn’t liked by everyone. Some people prefer software made by other companies as they provide different forms of data.

EVGA P2 1200W

Best 1200W PSU

The EVGA P2 1200W is a top quality power supply, and EVGA is one of the most popular companies to sell PSUs. The EVGA P2 1200W is 80+ Platinum for efficiency, it’s fully modular, and it’s 200MM in length.

EVGA P2 1200W has come equipped with top of the line components such as Japanese capacitors which are better than traditional capacitors as they’re higher quality and deliver cleaner power to your PC.

The EVGA P2 line of power supplies are compared to the EVGA T2 line of power supplies. P2 meaning Platinum, and T2 meaning Titanium. The Titanium line of power supplies are more efficient and come in higher wattages such as 1600W. However, the P2 line is still great and they’re often cheaper than the T2 line of units.

The EVGA P2 1200W costs around $330 which makes it the most expensive unit on this list, but it is also of great quality and reliability. EVGA is very respected when it comes to power supplies which is evident by the G2 line of PSUs.

What Type Of Systems & Components Is This PSU Compatible With?

Wattage1200W
Efficiency Rating80+ Platinum
Length200MM
Modular Fully Modular
Recommended GPURTX 30+
Form FactorATX
PCIe 6+2-Pin Connectors6
SATA Connectors12
EPS Connectors2
Molex 4-Pin Connectors5

If you’re looking to power servers, crypto mines, or multi GPU setups, the EVGA 1200W can supply more than enough power as it’s very efficient and of high wattage. 2x2080TI’s won’t even use up all of the capacity of this unit.

Small servers can benefit from the 1200W EVGA P2 as they often have a large number of storage devices, and they run 24/7. This should be easy work for the EVGA P2 1200W.

In terms of size, it is 200MM which makes it one of the largest PSUs in the line-up, it is perfect if you’re going for a standard mid-ATX build, but if you’re downsizing to Mini-ITX, it may be an issue with clearance.

What Is The User Experience?

A buyer’s experience has shown that the power supply is great for beginners and it’s user friendly. This is because the power supply comes with all the cables that are necessary, and you can remove some since it is fully modular.

A user has stated that the power supply has amazing build quality, and this is great for the buyer as poor quality power supplies can be dangerous for your components and your safety. The EVGA P2 1200W comes with braided cables which are great for the durability of the cables.

A user has replaced their old power supply with the new EVGA P2 1200W and has experienced a decrease in temperature of the overall build. This means the EVGA P2 runs pretty cool and efficiently which is important because a hot computer will degrade the lifespan of several components.

ECO mode isn’t gamer friendly because when you’re gaming you will need extra juice which ECO mode won’t be able to provide.

Features Of The EVGA P2 1200W

The EVGA P2 1200W uses 100% Japanese capacitors which is great for the overall performance of the system. Also, the fan uses double ball bearings for a balance of quietness and durability.

It is fully modular which is great for removing clutter and unnecessary cables from your system. Fully modular power supplies make the system run cooler, and they’re easier to cable manage.

ECO mode which is essentially Zero RPM mode. It’ll terminate the fan if the computer isn’t using enough power. This is great if you don’t want the fan spinning whilst in idle or not gaming.

Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection)

Pros:

  • Very quiet whilst in ECO mode. Activating ECO mode means the power supply will shut off the fan when the PC is under a certain load. Perfect for idle and light workloads.
  • Heavy duty components to extend lifespan. The power supply uses Japanese capacitors which are better than traditional capacitors, they last longer, provide better power, and do better in harsher conditions.
  • Fully modular. You’ll be able to remove cables which your system does not need. This is perfect for cable management which keeps the system clean and cool.

Cons:

  • ECO mode isn’t gamer friendly because gaming requires a lot of power and ECO mode may not be able to provide sufficient power.

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