Most beginner builders gloss over the importance of an efficient power supply when researching parts for their PC. This is very troublesome as an inadequate PSU could damage itself and take your motherboard along with it. A PSU’s job is to provide enough power to all components in your PC so they can function best.

When it comes to buying PSUs, you might be wondering which brand to choose among various ones. In this article, we’ll be guiding you through the process of buying PSUs, as well as comparing two popular brands: EVGA vs Corsair PSU.  

Also read: 240mm vs 280mm AIO

EVGA vs Corsair PSU
EVGA & Corsair Power Supplies Ultimate Comparison In 2022!

Factors To Consider When Buying a Power Supply 

Watts 

When buying a power supply, it is important to consider how much your PC parts’ requirements are. Without this, you could buy an underpowered PSU and damage your components and waste your hard-earned money. 

The easiest way to avoid this is by calculating the overall power requirements of your PC. There are a lot of calculators online that you can use to get an idea of how much power your whole system requires.  

Power supplies have a range of different wattages going up to 2000 watts and more. Although, for most standard gaming PCs, a PSU above 500 watts is enough and also a light on your wallet. As for overclocking, you can increase the wattage to accommodate for the extra power required by your components.  

You should also consider accommodating your PSU for any future upgrades. Adding a few extra bucks beforehand could save you the hassle of buying a completely new PSU in the long run.   

Power Efficiency 

The main factor affecting the performance of a power supply is its efficiency. Depending on the price, power supplies have a range of efficiencies arranged in an order. 

You might’ve noticed most PSUs being sold right now have an 80+ rating on them.  

In the past, there were PSUs that had an efficiency rating below 80% which means the power could not be utilized completely. But thankfully, most modern power supplies have the ability to utilize more than 80% power.  

The titles after the 80+ rating such as 80+ white, 85+ bronze, 88+ silver, 90+ gold, 92+ platinum, and 95+ titanium are all ratings above the standard 80% efficiency.  

If you’re a beginner builder looking to build a mid-tier PC, a safe option is to go with an 80+ bronze power supply. This gives you 85% power efficiency, as well as saves you some bucks in your electricity bill. Don’t go below that as it’ll be less efficient and also increase the cost of the electricity bill. 

Warranty 

Most modern PSUs have a very long lifespan hence their manufacturers provide large periods of warranty for consumers. 

For example, Corsair and EVGA provide a minimum of 3 years of warranty for their power supplies. This is because these are reputable companies, unlike premade builds which have a very small warranty.  

As you buy PSUs with higher wattage and more efficiency, the warranty also increases. So, for example, an 80+ gold power supply will have more warranty than an 80+ gold one. Titanium power supplies have warranties up to 10 years which is huge.   

So, when buying PSUs, it is important to consider the warranty and if you can get a better deal from another brand.  

Form Factor 

In the past, there were many different types of PSU sizes and forms but in modern power supplies, you just have to choose between ATX or SFX form factors.  

If you’re building a PC for the first time, most probably it’s a full tower or mid-tower build. In this case, you would go with the ATX which is the standard size of power supply that can fit in any ATX case. But you should check the maximum size of PSU that your PC chassis can support before buying.  

SFX is for smaller PC builds or mini ITX builds. While the standard size is set for all brands, you should still check your PC case whether it has enough space to install the power supply correctly. While the design is quite compact, the SFX PSU doesn’t have an extra fan so the heat output isn’t on par with an ATX.  

Always check whether your PC has the right support and space for the PSU that you’re going for.   

Noise Level 

Power supplies come with fans of different sizes and RPMs. This can produce different levels of sound when put under load. Thus, this is also an important topic while discussing Corsair Vs EVGA PSU’s.

Corsair and EVGA both have standard 120mm fans in their PSUs and you’ll find bigger sizes on higher-end supplies. These fans have smaller RPMs but are still enough to dissipate heat because of their large size.    

Power supplies generally don’t make that much noise but if you really want a stealth build, then you might want to spend a few extra bucks for the platinum and titanium labels because they have a larger 140mm fan and reduced heat output. This makes them the quietest PSUs out there. 

Between Corsair and EVGA, Corsair is found to have the quietest sound levels possible whereas EVGA’s PSUs are average or a little quieter than the standard. Corsair states their RM series PSUs to be exceptionally suited for silent operations and produce very low noise even on high voltages. On the other hand, EVGA’s G2 series also have extremely low noise outputs and high performance and efficiency.  

With that said, all modern PSUs don’t produce too much noise regardless but it’s still worth considering if you don’t want any extra noise coming from your PC.  

Non-Modular, Semi-Modular, and Fully Modular PSUs 

PSUs come in different modular types which have different methods of cabling. There are mainly 3 different modular types of PSUs. 

Non-Modular PSUs 

In the past, it was the standard for PSUs to be sold with all their cables attached beforehand. PSUs would have permanently attached cables so you wouldn’t able to remove and reattach the cables hindering the cable management of the entire build. This is what we commonly call the Non-Modular PSUs. These PSUs have some advantages and disadvantages. 

Firstly, the Non-Modular PSUs are cheaper and more compact compared to Modular and Semi-Modular PSUs. This is because the non-Modular technology is a bit outdated but it’s still highly reliable if you’re buying from reputable brands. To add on, non-Modular PSUs don’t have extra connectors and internal cables which leaves a smaller footprint than the other types.  

On the other hand, the major disadvantage of Non-Modular PSUs is extra cables that don’t need to be plugged into your build. This creates a mess and makes it difficult to manage all the cables in your PC. Other than that, non-Modular power supplies are also warmer than Modular and Semi-Modular types. This is because the extra cables hinder the airflow and heat dissipation. 

With that said, there are still some excellent Non-Modular PSUs out there and you should purchase one which is more reliable regardless of the modular type.  

Fully Modular PSUs 

Further elaborating on EVGA Vs Corsair PSU – we need to look at Fully Modular PSU’s as well.

Fully modular PSUs are the exact opposite of non-modular ones meaning they don’t come with already attached cables. Instead, you get all the cables you need inside the box and you can also buy them separately. This allows you to skip any unnecessary cables that might’ve come pre-installed on a Non-Modular PSU.  

A big advantage of fully modular PSUs is that you can choose which cables you want to attach to the PC. This makes the PC cooler because there are no unnecessary cables hindering heat dissipation. It also makes cable management easier because you have fewer cables to work with. Moreover, it gives you the ability to replace cables and also adds appeal to the aesthetics.  

On the other hand, the extra ports in the body of fully modular PSUs make them a bit larger than non-modular ones. Also, beginner builders might find it hard to connect all cables in their proper places when building their PC for the first time. And lastly, the fully modular PSUs don’t have very strong connectors and could be damaged after some time after repetitive connecting and disconnecting.  

Semi-Modular PSUs 

Semi-modular PSUs are a hybrid of fully modular and non-modular PSUs. These types come with the most important cables pre-attached while the other more customizable and unimportant cables can be attached by the user himself.  

For newbie PC builders, the semi-modular PSUs are the easiest and fastest to install because all the necessary cables already come attached to the PSU. These cables include the 20/24-pin ATX cable, 8-pin CPU connector, SATA cable, and PCIe connectors. All of these or only one of these could come pre-attached depending on the model of PSU that you want to buy. 

As for disadvantages, semi-modular cables may have too short or too long cable lengths which can’t be replaced just like non-modular PSUs. Also, you can’t completely customize your build and make the aesthetics to your liking in this sort of PSU.   

EVGA G2 Series vs Corsair HXi Series 

Series comparisons between EVGA vs Corsair PSU is a difficult task as both companies have various different naming schemes. You don’t need to understand all of the names as that’d require a whole new guide but the EVGA G2 and Corsair HXi are the most popular ones right now. We’ll use the EVGA SuperNOVA 750 G2 and Corsair HX750i PSUs in this EVGA vs Corsair PSU comparison.

EVGA SuperNOVA 750 G2 vs Corsair HX750i 

EVGA SuperNOVA 750 G2 and Corsair HX750i are overall very similar in design and performance. Regarding the features, the Corsair HX750i is fully modular while the EVGA SuperNOVA 750 G2 is semi-modular. Each has its own 140mm fans which can be used for silent operation. There are some small differences between cable lengths due to different modular types.  

Moving on, the EVGA G2 series has an 80+ gold rating so naturally, EVGA SuperNOVA 750 G2 does too. Similarly, the Corsair HX750i has an 80+ platinum rating putting it at a higher efficiency rating than the G2. Also, there’s a continuous power rating allowing you to utilize close to 750W easily. Both PSUs also come with a 10-year warranty.  

If noise is a concern, you’d want to go with the Corsair HXi series as it provides virtually silent operation with little noise output. Corsair HXi also has a better efficiency rating of 80+ platinum. However, in most places, you’ll find the Corsair HX750i $80-100 higher in price as compared to EVGA SuperNOVA 750 G2.  

650W EVGA vs Corsair PSU 

EVGA and Corsair both have a number of 650W PSUs. The ones that were picked for this comparison proved to be the most popular out of their competitors in their respective brands. These are some great entry-level PSUs that are recommended to all beginner builders. 650W PSUs are great for a little overclocking and single mid to high-end graphics card builds.  

EVGA 650 BQ vs Corsair CX650M 

Firstly, both PSUs have very similar features in that they’re both semi-modular, along with the same pre-attached cables. Also, both of them have the fans running continuously which produces a little noise.

Some small differences include different cable lengths and fans. While the EVGA 650 BQ has a bigger 140mm cooling fan as compared to the Corsair CX650M’s 120mm fan. Lastly, the EVGA 650 BQ has a slightly longer cable than the Corsair CX650M. 

Moving on, both EVGA 650 BQ and Corsair CX650M have the same 80+ bronze rating as well as continuous power output rather than switching to max power output when put under load. Both PSUs also have 5 years of warranty and are based on the ATX form factor. 

Last but not least, Corsair CX650M is a bit pricier than the EVGA 650 BQ as of now which places the EVGA 650 BQ a bit higher in terms of value since both PSUs are nearly identical. Also, the EVGA 650 BQ has a larger 140mm fan allowing it to work more quietly with greater heat dissipation. 

In the end, these are both 80+ bronze rated PSUs which means they give you 85% efficiency which is good for entry-level but considering future upgrades, you might want to look into 80+ gold PSUs.  

1000W EVGA vs Corsair PSU 

1000W PSUs aren’t very popular among beginner builders, but if you need to do heavy overclocking and use multiple GPUs, then this might be the best option.

EVGA and Corsair both have a number of 1000W PSUs among which, the EVGA SuperNOVA 1000 G3 and Corsair RM 1000x stand out which will be used for this comparison.  

EVGA SuperNOVA 1000 G3 vs Corsair RM 1000x 

The EVGA SuperNOVA 1000 G3 and Corsair RM 1000x are powerful PSUs with large overclocking capacity and can power multiple GPUs.  

In terms of features, both PSUs are fully modular with similar dimensions and a compact design. While the Corsair RM 1000x has a larger 160mm wire, the EVGA SuperNOVA contains a 150mm wire.

From this, we can see that Corsair has made the cable length much shorter whereas EVGA has kept it the same as its predecessor. There’s also the silent operation feature which means the fans don’t move at all on small loads. 

Moving on, both PSUs are based on continuous output so you can utilize nearly 1000W continuously. Their efficiency ratings are also very much the same. Both have an 80+ gold rating with 10+ years of warranty which is really reliable. 

Lastly, the price is quite fair for both PSUs but EVGA SuperNOVA 1000 G3 might be a bit more expensive. Couple that with a little louder sound as compared to the Corsair RM 1000x and Corsair wins this one.

Although if noise isn’t really a big issue and you want a more compact PSU, then go with EVGA.   

Conclusion  

In this EVGA vs Corsair PSU comparison, we compared different models of PSUs from boh brands. EVGA and Corsair are both great brands for buying PSUs and offer PSU efficiencies rated from Platinum all the way down to Bronze. In the end, the brand doesn’t really matter since both are very reliable and reputable.

You can compare different models of PSUs from both brands and declare one as the winner but as a whole, there’s no clear winner. EVGA has some great PSUs at cheaper rates but produces a little more noise than Corsair while Corsair can get a bit pricier.

It depends on your personal preference of whether you want a more compact PSU, silent operation, easy cable management, etc.

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Abdemanaf has been a creative writer since 2011. He first dwelled in the tech world in early 2015 and has since compared many product offerings by different companies. Abdemanaf started working for Tech4Gamers in February 2022 as a blog and comparison writer.