When it comes to power, 850W is a sweet spot for many gamers and professionals alike, providing ample headroom for high-end processors, graphics cards, and other components without being overkill.
In this article, we will guide you through the jungle of options available in the market. We’ll highlight the top picks that balance efficiency, performance, build quality, and price, so you can find the perfect PSU for your needs.
Whether you’re building a gaming powerhouse, a professional workstation, or simply want a reliable and efficient system, our curated list will help you make an informed decision. Let’s dive in and power up your knowledge!
Our Top Picks
- Seasonic B12 BC 850W PSU, Our best budget PSU, shines in terms of cost-effectiveness. Although it may lack some fancy features, it delivers a reliable 850W performance and is backed by a reputable manufacturer known for its high-quality products.
- EVGA 850 B5: Our best budget quiet PSU, is another cost-effective choice, especially for those starting a build for the first time.
- Corsair RM850: A tried and tested PSU known for its reliability and consistent power delivery. With an 80+ Gold efficiency rating and ultra-low noise levels, it is an excellent option for high-end system builders.
- MSI MPG A850G PCIE5 provides the best value. It stands out for its compatibility with the new PCIE 5.0 standard and a range of protection mechanisms.
- ASUS ROG THOR 850 Platinum: Our best aesthetic PSU, is the most premium option on the list.
🏆 Seasonic Focus GX-850
The Seasonic Focus GX-850 brings to the table an aesthetic that is arguably on the minimalist side. With a non-fancy, simplistic design and a color scheme that blends brown and black, this PSU certainly prioritizes function over form. For users that aren’t keen on showcasing their PSU or don’t care much about their system’s internal appearance, this design could be ideal. However, for those who prefer a visually impressive build, the B12 BC may leave something to be desired.
Despite the minimalist design and lack of aesthetic appeal, the Seasonic B12 BC is packed with reliability, offering a substantial 850W power supply that is enough to power most high-end gaming systems. It boasts an 80+ Gold efficiency rating, ensuring a satisfactory level of power efficiency under standard operating conditions.
The Seasonic Focus GX-850 offers non-modular cables, eliminating the need for first-time builders to choose which cables to use. While this can simplify the building process, it could limit flexibility for advanced users who prefer customizable cable management.
The main strength of the Seasonic Focus GX-850 lies in its affordability. It manages to offer a substantial power supply at a significantly lower price point compared to many other 850W PSUs.
| 👍 Pros | 👎 Cons |
|---|---|
| Affordable price point | Aesthetic appeal might not be suitable for everyone |
| Reliable 850W power supply sufficient for most PCs | |
| Simple to use, especially for first-time builders | |
| Stable and consistent power delivery |
🥇 EVGA 850 B5 PSU
EVGA has always been a go-to name when it comes to quality computer components, and the EVGA 850 B5 power supply unit (PSU) is no exception. Designed with durability, efficiency, and performance in mind, this PSU will keep your system running smoothly even during the most intensive operations.
First, the 850W power output is generous, sufficient for most mid-to-high-end systems, capable of handling both single and multi-GPU setups with ease. It can support heavy loads and demanding applications without compromising on its power delivery or causing fluctuations in power, thus maintaining the overall stability of your system.
One of the standout features of this PSU is its 80 PLUS Bronze certification. This ensures an efficiency of over 85% under typical loads, translating to less heat generation and energy waste. Such efficiency not only keeps your system cool but also results in significant savings on your electricity bill over time.
The EVGA 850 B5 is fully modular, allowing for much cleaner builds and easier cable management. You can use only the cables you need, reducing clutter and improving airflow inside your case. This feature is highly appreciated, especially among the enthusiasts aiming for a clean, organized look for their systems.
Additionally, the PSU’s build quality is exceptional, with a solid and durable design. The included fan is silent yet efficient, ensuring the PSU remains cool without contributing significantly to system noise.
As for the potential downsides, one may be the price point. The EVGA 850 B5 is not the cheapest PSU on the market, especially compared to other 850W models. However, considering its performance, efficiency, and modularity, it can be argued that the investment is well worth it.
| 👍 Pros | 👎 Cons |
|---|---|
| Generous 850W power output, sufficient for high-end systems and multi-GPU setups. | Higher price point compared to some other 850W PSUs. |
| 80 PLUS Bronze certification ensures efficiency over 85% under typical loads. | |
| Fully modular design for cleaner builds and easier cable management. | |
| High build quality with a silent yet efficient fan. | |
| Provides stable power supply under heavy loads and demanding applications. |
🥇 Corsair RM850
The Corsair RM850 is a powerful and reliable power supply unit (PSU) that impresses with its high-quality build, performance, and features. Rated at 850W, it provides ample power for high-end systems, including those with multiple GPUs, and maintains stable power delivery even under heavy loads.
The unit is 80 PLUS Gold certified, an indication of its high energy efficiency. This ensures lower electricity usage, reduced heat output, and less fan noise, contributing to the longevity of your system and the PSU itself.
One of the key aspects that sets the Corsair RM850 apart from the competition is its fully modular design. This not only makes installation easier but also allows for cleaner cable management within your PC case, improving airflow and overall aesthetics.
The fan technology is another point of strength. The PSU comes with a Zero RPM Fan Mode, which means the fan remains off at low to medium loads, ensuring virtually silent operation. Even when the fan does kick in, its noise levels are impressively low.
Quality capacitors ensure the RM850’s longevity and reliability. Its ten-year warranty demonstrates Corsair’s confidence in this product, providing a layer of reassurance for buyers.
One point that could be improved is the packaging of the PSU. The cables could be better organized, and the instructions could be more comprehensive, especially for first-time builders.
| 👍 Pros | 👎 Cons |
|---|---|
| High-quality build and reliable performance | Cable packaging could be better organized |
| Fully modular for easy installation and clean cable management | Instructions could be more comprehensive |
| 80 PLUS Gold certified for high energy efficiency | |
| Zero RPM Fan Mode for near-silent operation | |
| Quality capacitors ensure longevity | |
| Backed by a substantial 10-year warranty |
🥇 MSI MPG A850G PCIE5
The MSI MPG A850G PCIE5 PSU is a solid performer, with a host of features that make it stand out from its competitors. Designed for high-end gaming systems, this PSU from MSI demonstrates their commitment to quality and efficiency.
The MSI MPG A850G PCIE5 is an 850W, 80 Plus Gold certified PSU, meaning it maintains an efficiency of at least 90% under 50% load, translating to less wasted power and more savings on your electricity bill. This level of efficiency is commendable and aligns well with the industry standard.
One of the key features of the MSI MPG A850G PCIE5 is its full modularity. This means that you can connect only the cables you need, making cable management much easier and promoting better airflow inside your case. It also means easier installation, especially in smaller or more cramped cases.
Another standout feature is its compatibility with PCI Express 5.0. For those who want to ensure their PSU can handle the latest and greatest graphics cards, this PSU is future-proofed.
The build quality of the MPG A850G PCIE5 is excellent. It uses high-quality capacitors and other components that ensure the unit’s longevity and reliability. The 10-year warranty provided by MSI gives further reassurance of the product’s quality and durability.
The flat, black cables included with the unit are robust, flexible, and aesthetically pleasing, making them easy to route and hide in your system for a sleek, clean look.
On the downside, the fan of the MSI MPG A850G PCIE5 could be quieter. While not excessively noisy, there are certainly quieter units on the market. This may be an issue for users who prioritize silent operation.
| 👍 Pros | 👎 Cons |
|---|---|
| 80 Plus Gold certified, promising high efficiency | Fan could be quieter |
| Full modularity allows for easier cable management and installation | Slightly pricey compared to some competitors |
| Compatible with PCI Express 5.0 | Limited availability in some regions |
| High-quality build with durable components | Potential overkill for non-gaming, less power-demanding systems |
| Comes with a 10-year warranty | |
| Aesthetically pleasing, robust and flexible flat black cables |
🥇 ASUS ROG THOR 850 Platinum PSU
ASUS Republic of Gamers (ROG) has a strong reputation for delivering top-tier components, and the ROG THOR 850 Platinum Power Supply Unit (PSU) further solidifies this status. This PSU combines high efficiency, robust performance, and unique features, setting it apart from its competitors.
At its core, the ASUS ROG THOR 850 Platinum is an 850W, 80 Plus Platinum certified PSU. This indicates that it maintains an impressive efficiency of 92% at 50% load, translating to less wasted power, helping you save on your electricity bills. It provides ample power to run high-end gaming systems and workstations without breaking a sweat.
One of the standout features of the ROG THOR 850 Platinum is the inclusion of an OLED power display. This innovative feature displays real-time power draw, allowing you to monitor your system’s power consumption directly from the PSU. It’s not just a practical addition; it also gives a high-tech aesthetic touch that many users will appreciate.
The build quality of the ROG THOR 850 Platinum is exceptional. It boasts high-quality capacitors and components that ensure the longevity and reliability of the unit. To reassure users of its quality, ASUS provides a 10-year warranty, one of the longest in the industry.
The fully modular design of the ROG THOR 850 Platinum is another win, as it allows for better cable management and airflow within your case. The cables provided are flat and flexible, which makes them easy to work with and route, contributing to a cleaner system build.
The PSU also features ASUS Aura Sync RGB, which offers customizable RGB lighting that you can synchronize with your other Aura-enabled components. This is a fun touch that allows you to personalize your system’s look.
On the downside, the ASUS ROG THOR 850 Platinum is quite expensive compared to other 850W PSUs on the market. It’s also on the larger side, which could present compatibility issues with smaller cases.
| 👍 Pros | 👎 Cons |
|---|---|
| 80 Plus Platinum certified for high efficiency | Higher price point than most 850W PSUs |
| Innovative OLED power display | Larger size could cause compatibility issues with some cases |
| Exceptional build quality with a 10-year warranty | Overkill for non-gaming or less power-demanding systems |
| Fully modular design for easy cable management | |
| ASUS Aura Sync RGB for customizable lighting |
850w Power Supply Buyer’s Guide
A stable and efficient power supply unit (PSU) is essential to ensure that your system runs smoothly, whether you are a casual user, a gamer, or a professional requiring high-performance computing. When it comes to power, an 850w PSU is a popular choice among users who demand a balance between power and efficiency.
In this comprehensive buyer’s guide, we will explore the basics of an 850w PSU, factors to consider before making a purchase, top brands to consider, price ranges, and where to buy, as well as a step-by-step installation guide and common mistakes to avoid.
Understanding the Basics of a 850w PSU
What is a 850w PSU?
An 850w PSU, or power supply unit, is a piece of hardware that converts AC power from your wall outlet into DC power that can be used by your computer’s components. The PSU is an essential component of any computer system, providing the necessary power for the smooth operation of all the other hardware components. Without a PSU, the computer would not be able to function.
When it comes to power supplies, the wattage rating is an important factor to consider. The “850w” in the name refers to the maximum power output that the PSU is capable of delivering to your system. This power rating is crucial as it determines whether your PSU can handle the power requirements of your computer’s components such as the CPU, GPU, and other peripherals.
It’s worth noting that the wattage rating of a PSU represents its maximum output capacity, not the amount of power it constantly consumes. The power supply will only draw the necessary amount of power from the wall outlet to meet the demands of the computer system. Therefore, having a higher wattage PSU does not necessarily mean it will consume more electricity.
Best 1000W Power Supply: Our Top Pick’s & Buyer’s Guide
Why Choose a 850w PSU?
Choosing the right power supply for your computer is essential to ensure stable and efficient performance. While some users may be tempted to opt for a higher wattage PSU for future upgrades, it’s important to strike a balance between power requirements and efficiency. An 850w PSU is a suitable choice for users who require a robust power supply without overspending on a higher wattage PSU that may not be fully utilized.
When deciding on the wattage of your PSU, it’s crucial to consider the power requirements of your computer’s components. High-performance CPUs and GPUs, for example, require more power to operate efficiently. Additionally, if you plan on adding multiple hard drives, expansion cards, or other power-hungry peripherals to your system, you may need a higher wattage PSU to accommodate these additional power needs.
Another factor to consider is the efficiency of the PSU. Power supplies are rated based on their efficiency, which is the percentage of power that is actually delivered to the computer’s components compared to the power drawn from the wall outlet. Higher efficiency PSUs waste less energy as heat, resulting in lower electricity bills and a more environmentally friendly system.
Furthermore, an 850w PSU provides a good balance between power and affordability. It offers enough headroom for future upgrades while ensuring that you are not overspending on a higher wattage PSU that you may not fully utilize. It’s always recommended to choose a reliable and reputable brand when selecting a power supply to ensure the safety and longevity of your computer system.
Factors to Consider Before Buying a 850w PSU
When it comes to choosing a power supply unit (PSU) for your computer, there are several factors to consider. In this guide, we will delve deeper into the key considerations that will help you make an informed decision.
Power Efficiency
One of the most important factors to consider when purchasing a PSU is its power efficiency. An efficient PSU ensures that less power is wasted as heat, resulting in lower electricity bills and a greener environment. When browsing for PSUs, look for those with 80 Plus certification, which indicates their efficiency rating. The higher the certification level (Bronze, Silver, Gold, Platinum, or Titanium), the more efficient the PSU is.
Efficiency is particularly crucial for high-wattage PSUs like the 850w variant. With a more efficient PSU, you can enjoy better power utilization, reducing energy wastage and ultimately saving you money in the long run.
PSU Size and Form Factor
Before making a purchase, it is essential to ensure that the 850w PSU you choose is compatible with your computer’s case. PSUs come in different sizes and form factors, such as ATX, Micro ATX, and SFX. Each form factor has its own dimensions, and it is crucial to check the specifications of your case to ensure that the PSU will fit without any compatibility issues.
Choosing the right size and form factor is not only about physical fit but also about ensuring proper airflow within your computer case. A PSU that is too large may obstruct the airflow, leading to increased temperatures and potential performance issues. On the other hand, a PSU that is too small may not provide sufficient power for your components.
Cable Management
Aside from power and compatibility, cable management is another aspect to consider when selecting an 850w PSU. A well-organized and tidy computer build not only looks aesthetically pleasing but also improves airflow and cooling performance.
Opting for a modular or semi-modular PSU is a smart choice as it allows you to connect only the cables you need, minimizing clutter within your case. This feature not only simplifies cable routing but also enhances the overall airflow, reducing the chances of cable interference with other components.
Furthermore, modular PSUs make cable management easier during installation or when upgrading your system. You can easily remove or add cables without the hassle of dealing with a bundle of unnecessary wires.
By considering factors such as power efficiency, PSU size and form factor, and cable management, you can make a well-informed decision when purchasing an 850w PSU for your computer. Remember, investing in a reliable and efficient PSU is crucial for the overall performance and longevity of your system.
Installation Guide for a 850w PSU
- 1. Before starting the installation process, ensure that your computer is powered off and unplugged from the electrical outlet.
- 2. Open your computer case by removing the side panel. Refer to your case’s manual for specific instructions.
- 3. Locate the current power supply unit and disconnect all the cables connected to it, including the main motherboard power cable, CPU power cable, and SATA power cables.
- 4. Carefully remove the old power supply unit from the case, ensuring not to damage any other components.
- 5. Place the new 850w PSU in the same location as the old PSU and secure it using the necessary screws.
- 6. Connect the main motherboard power cable, CPU power cable, and SATA power cables to their respective connectors on the new PSU.
- 7. Once all the cables are securely connected, double-check that everything is properly seated and secure.
- 8. Close the computer case by reattaching the side panel and securing it with the appropriate screws.
- 9. Plug in your computer and power it on to ensure that everything is functioning correctly.
Common Installation Mistakes to Avoid
While installing an 850w PSU, it’s important to avoid common mistakes that can lead to unnecessary complications or damage to your system. Avoid these common pitfalls:
- Incorrect mounting of the PSU
- Poor cable management
- Forgetting to connect necessary power cables
- Using incorrect connectors
- Failure to properly ground yourself before handling components
By following the step-by-step installation guide and avoiding common mistakes, you can ensure a seamless and trouble-free installation of your new 850w PSU.
Conclusion
Choosing the right power supply for your computer is crucial for stability and performance. An 850w PSU strikes a balance between power requirements and efficiency, making it a popular choice among users. Consider factors such as power efficiency, PSU size and form factor, and cable management before making a purchase.
Here’s our top pick again …
- Seasonic B12 BC 850W PSU, Our best budget PSU, shines in terms of cost-effectiveness. Although it may lack some fancy features, it delivers a reliable 850W performance and is backed by a reputable manufacturer known for its high-quality products.
- EVGA 850 B5: Our best budget quiet PSU, is another cost-effective choice, especially for those starting a build for the first time.
- Corsair RM850: A tried and tested PSU known for its reliability and consistent power delivery. With an 80+ Gold efficiency rating and ultra-low noise levels, it is an excellent option for high-end system builders.
- MSI MPG A850G PCIE5 provides the best value. It stands out for its compatibility with the new PCIE 5.0 standard and a range of protection mechanisms.
- ASUS ROG THOR 850 Platinum: Our best aesthetic PSU, is the most premium option on the list.
850w PSU FAQs
Is an 850W PSU overkill?
The answer to this question depends on the components of your system. For most mid-to-high-end single GPU systems, an 850W PSU is more than enough. However, for systems with power-hungry components, multiple GPUs, or heavy overclocking, an 850W PSU may be just right or even insufficient.
Is 850W overkill for an RTX 3080?
No, an 850W PSU is not overkill for a system with an RTX 3080. NVIDIA recommends a 750W PSU for a system with a single RTX 3080, so an 850W PSU gives you a comfortable buffer, particularly if you plan to overclock your GPU or CPU, or have other high-power-draw components in your system.
Can an RTX 3090 run on an 850W PSU?
Yes, an RTX 3090 can run on an 850W PSU, but it doesn’t leave much headroom. NVIDIA recommends a minimum PSU wattage of 750W for systems with a single RTX 3090. However, if you have a high-performance CPU, multiple drives, or plan to overclock your system, you might want to consider a higher wattage PSU.
Is 850W too much for an RTX 3070?
For a system with a single RTX 3070, an 850W PSU is likely more than you need. NVIDIA recommends a 650W PSU for such a system. However, having an 850W PSU won’t harm your system and would provide extra headroom for potential upgrades, additional components, or overclocking in the future.
