While not as glamorous as the CPU and graphics card, picking the right power supply unit (PSU) for your gaming PC is crucial as opting for something not quite powerful enough can prove to be a costly mistake. Investing in a quality supply from a well-known brand is a great way to ensure your other components are protected in case of power surges and similar events.
Whether you're looking to save money on a cheap build to climb the ranks in League of Legends and Valorant or splash the cash on a high-end 1000W rig, we've picked the best power supplies for all gaming PCs. Our list features modular and non-modular designs from great brands like Corsair, Evga, and Cooler Master, so whatever your budget, there's something worth considering below!
For those after a quick look, here is our Top 5:
For a more in-depth look at the comprehensive top 10 selection, make sure to read on to learn more about the different types of power supplies for gaming PCs available and understand how our ranking was determined.
This article's chosen EC site price listings are reflective of its publishing date.
MWE 650 Gold V2
ROG STRIX 1000W
System Power 9
V650 SFX Gold
A Fully Modular PSU for Mid-Range Gaming PCs Looking For Optimal Airflow
A Reliable Choice for Budget Builds With a Three-Year Warranty
An Interesting Semi-Modular Option for High-End PCs Using Liquid Cooling
A Powerful PSU for Futureproofing a Build on a Budget
An Affordable Pick-Up for the Majority of Gaming PCs
A Fully Modular Offering Boasting Serious 1000W Power and a Ten-Year Warranty
A Solid, Quiet Runner for Mid-Range Builds at a Reasonable Price
Fantastic for a Small Form Build and Designed for the Living Room
A Powerful PSU for Mini-ITX Cases That Need Liquid Cooling
Fully Silent and Containing All-Japanese Capacitors
|Best For||Mid-range, airflow||Low-end, budget builds||High-end, liquid cooling||Future-proofing, budget builds||Low-end, mid-range||High-end, liquid cooling||Mid-range||Small builds||Small builds, liquid cooling||Small form, liquid cooling|
When choosing a PSU, the most important thing to consider is the number of watts you'll need to power all of your components. Generally speaking, the more complex your build is, the more watts you'll need. If you're building a liquid-cooled behemoth with dual GPUs, a high-end motherboard, and three hard drives, you're going to need more power than for something simpler.
It's worth keeping in mind that a 750-watt PSU won't be consuming that amount of power all the time, but only when the system needs it, so it's better to err on the side of caution. If you know your build uses around 500 watts of power, opting for a 550 or 600-watt PSU won't be costing you any extra electricity as it'll only draw what's needed.
The minimum amount we recommend for a gaming PC running a single SSD and a low to mid-level GPU would be 500 watts. For higher-level gaming PCs that you may want to stream from, 650-750 watts is a good average to aim for, and 850-1000 watts is suitable for real top-of-the-line builds that you plan on pushing to the limit.
Don't forget to grab the best graphics card you can afford when building a gaming PC!
There are two main types of PSUs: modular and non-modular. The only difference between the two designs is in their cable connections. Otherwise, they function in exactly the same way. Modular PSUs have cables you can attach and detach to the unit itself, meaning that you only ever have the wiring you need inside of your case taking up space.
Non-modular power supply units have fixed cables for all the potential connections you may end up using, meaning your case will most likely have a few extra SATA and PCIe cables kicking around at the bottom. While these aren't great for smaller-form builds or ones with additional components, the drastic difference in price means you can make some serious savings in larger towers.
Make sure everything's running smoothly by picking the right motherboard for gaming.
Finally, you'll want to ensure all the parts in your build are compatible. It's essential to check that your power supply slots nicely into whichever case you've decided on. The good news is that, for the most part, power supplies are universal in size outside of some specific form factors designed for smaller cases.
The average power supply has the ATX form factor. This is compatible with all types of ATX cases, which tend to be the norm when building a gaming PC. If you're looking for something suitable for a mini-ITX case or other small form factors, you can opt for an SFX; these can also work in ATX cases but may need a bracket and are often a little more expensive.
Want to reduce the cost of your new build without sacrificing power? Check out these budget PC cases.
This ranking has been compiled by the writing team at mybest UK via careful evaluation of the points made in the buying guide and thorough research of each product and comparing multiple verified customer reviews across the EC sites used.
|Best For||Mid-range, airflow|
|Best For||Low-end, budget builds|
|Best For||High-end, liquid cooling|
|Best For||Future-proofing, budget builds|
|Best For||Low-end, mid-range|
|Best For||High-end, liquid cooling|
|Best For||Small builds|
|Best For||Small builds, liquid cooling|
|Best For||Small form, liquid cooling|
Written and researched by David Sexton
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