Whether you are a gamer, a creative professional, or those working on high-power demanding PCs, an 850W power supply is the best option to fuel a gaming rig or workstation.
A robust 850W power supply unit (PSU) can handle various demanding components like GPUs, CPUs, and high-storage RAM modules. So, choosing the right 850W PSU for your build is very essential, offering stable connectivity and enhanced performance without frequent shutdowns.
Here are the 3 key factors you need to check out when selecting the 850W power supply.
- Efficiency – It determines how an 850W PSU turns the input power into usable output power with less power wasted as heat. It results in reduced power consumption and low operating temperatures. So, choose an 850W PSU with 80+ Gold certification, offering at least 87% efficiency at 100% load and 90% at 50% load.
- Modular Design – An 850W PSU with a modular design is ideal for those prioritizing a tidy environment, which allows for connecting all the required cables. This reduces clutter and enhances airflow within the case to minimize the operating temperatures.
- Protection Features – The PSU with various protection features will safeguard your PC components from abnormal power fluctuation and other issues. The features include proper protection against overvoltage, undervoltage, short circuits, over-current, and over-temperature.
Apart from these 3 key factors, there are several other key factors to consider, which impact the durability, performance, and ease of use of the 850W PSUs. All those are clearly explained in our “Buying Guide”, and also we compiled a list of the top 850W PSUs to ensure you make an informed decision as per your requirements.
Best 850 Watts PSU Table
| 850 Watts PSU | PSU Type | Connector Type | Case Fan Size | Buy Now |
|---|---|---|---|---|
| Thermaltake Toughpower GX3 PSU | Non Modular | ATX, PCI Express, Molex, SATA | 120mm | Check On Amazon |
| Corsair RMX Power Supply | Fully Modular | ATX, EPS | 135mm | Check On Amazon |
| EVGA 850 G5 Power Supply | Fully Modular | PCI Express, SATA | 135mm | Check On Amazon |
| ARESGAME AGT Series Power Supply | Fully Modular | ATX | 140mm | Check On Amazon |
| MSI MPG A850G Power Supply | Fully Modular | ATX, PCI Express | 135mm | Check On Amazon |
| Segotep GM850 Power Supply | Fully Modular | ATX | 120mm | Check On Amazon |
| Redragon RGPS Power Supply | Fully Modular | ATX 3.1 | 160mm | Check On Amazon |
Best 850 Watts PSU Reviews
1. Thermaltake Toughpower GX3 PSU
Thermaltake’s Toughpower GX3 PSU is ideal for those who demand both efficiency and high performance in their gaming rigs and high-end PC builds. Compliant with the latest Intel ATX 3.0 standards, this delivers stable and powerful energy, ensuring your components get the power they need without fluctuation. It also features a 120mm Fluid Dynamic Bearing fan, which significantly reduces noise, making it a great choice for users who value a quiet working environment.
One of the standout features of the GX3 is its commitment to reliability and efficiency, marked by its 80 PLUS Gold certification. This ensures that the power supply operates at a minimum of 90% efficiency at 50% load, thereby reducing heat and energy consumption. However, the non-modular design might deter users who prioritize a clean and organized build, as it requires managing all included cables regardless of necessity.
Equipped with PCIe Gen 5.0 support, the GX3 is primed for high-performance computing needs, staying ready for future upgrades. Its comprehensive protection systems help shield essential components from power surges and instability. This balance of future technology and reliability makes it a go-to choice for serious builders.
Specifications:
- 80 PLUS Gold certified
- 120mm Fluid Dynamic Bearing Fan
- ATX form factor
- Non-modular cable design
- Supports PCI Express Gen 5
- Intel ATX 3.0 compatible
- 100-240V input voltage
- Built-in OVP/UVP/OCP/OPP/OTP/SCP
- Dimensions: 150mm x 86mm x 140mm
Pros:
- Ultra-quiet operation
- High energy efficiency
- Future-proof features
- Strong built-in protections
- Stable power under load
Cons:
- Bulky for small cases
- Limited cable customization
2. Corsair RMX Power Supply
Corsair’s RM850x features a fully modular cable system that enhances airflow and system cleanliness by permitting the connection of only essential cables. This 850W power supply is renowned for its silent operation, modular design, and superior reliability. It boasts an 80 PLUS Gold certification, highlighting its commitment to energy efficiency, which helps reduce operational costs and maintain high system performance with minimal heat generation.
Featuring a zero RPM fan mode, Corsair’s power supply promises a whisper-quiet operation under low and medium loads perfect for settings where noise is a concern, like recording studios or audio-sensitive environments. This quiet performance is bolstered by the use of premium, 105°C-rated Japanese capacitors, ensuring durability and consistent power delivery across various load conditions. This power supply isn’t just about silent operation; it’s about stable, reliable power that’s critical in preventing system failures.
Safety is a priority with this power supply, which includes over-temperature protection among its many robust features. It’s designed for enthusiasts and professionals who need a reliable power source for demanding applications like gaming and content creation.
Specifications:
- 80 PLUS Gold certified
- 135mm cooling fan
- Fully modular cables
- Zero RPM fan mode
- 105°C Japanese capacitors
- ATX12V form factor
- Over-temperature protection
- Dimensions: 160mm x 150mm x 86mm
- Supports modern standby
Pros:
- Extremely quiet operation
- Superior energy efficiency
- High-quality components
- Compact and durable design
- Easy cable management
Cons:
- No PCIe 5.0 support
- May overkill for low-power PCs
3. EVGA 850 G5 Power Supply
The EVGA 850W power supply integrates unparalleled efficiency, modular cabling, and silent operation. Boasting an 80 PLUS Gold certification, the power supply achieves up to 91% efficiency under typical loads, facilitating significant energy savings and reduced heat output. Its fully modular design not only keeps builds clutter-free but also enhances airflow, optimizing the internal environment of PC cases.
With its fan only operational during heavier loads, this EVGA power supply, built with premium Japanese capacitors, excels in both quietness and reliability. The specialized ECO mode and Fluid Dynamic Bearing technology maintain a low noise level, ideal for users who need a silent operation. The choice of high-quality Japanese capacitors further guarantees a long-lasting and dependable power supply solution.
The G5 PSU enhances overall stability with its sophisticated active clamp +DC-DC converter design, which is crucial for the 3.3V/5V stability. This feature is indispensable for high-performance gaming setups and other demanding applications that require stable and consistent power. It exemplifies the blend of advanced technology with practical, user-centric designs that mark today’s top power supplies.
Specifications:
- 80 PLUS Gold certified
- Fluid Dynamic Bearing fan
- Fully modular design
- Active clamp +DC-DC converter
- 100% Japanese capacitors
- ECO mode for quiet operation
- Input Voltage: 100-240V
- Dimensions: 150mm x 150mm x 86mm
Pros:
- Exceptionally quiet with ECO mode
- Robust power efficiency
- Premium component quality
- Stable voltage output
Cons:
- Bulky for compact cases
- Fan might be noticeable at high loads
4. ARESGAME AGT Series Power Supply
ARESGAME AGT power supply for gamers and builders in need of 850 watts, blending cost-effectiveness with robust performance. With its 80 PLUS Gold certification, it ensures at least 90% efficiency at typical loads, offering a reliable and economical power solution. Its fully modular design enhances the building experience by allowing only necessary cables, which improves airflow and minimizes clutter inside the PC case.
The AGT is equipped with an ultra-quiet 120mm FDB (Fluid Dynamic Bearing) fan, which significantly reduces noise levels, making it an excellent option for users who prioritize a quiet operating environment. Additionally, the compact size of the power supply, being only 140mm deep, makes it an ideal fit for a variety of case sizes, including more compact options that are popular in modern gaming rigs.
With its commitment to durability, the power supply integrates robust safety mechanisms such as OVP, UVP, and OPP. These features not only ensure the longevity of the power supply itself but also protect your valuable components from electrical issues. The power supply is chosen based on its ability to safeguard system performance and maintain overall component stability.
Specifications:
- 80 PLUS Gold efficiency
- 120mm Fluid Dynamic Bearing fan
- Fully modular cable management
- Compact 140mm depth
- Heavy-duty protections included
- APFC + LLC + DC-DC structure
- Maximum Input Voltage: 240 Volts
- Minimum Input Voltage: 100 Volts
- Supports high-end VGA cards
Pros:
- Very affordable for its features
- Quiet operation with FDB fan
- Compact and fits most cases
- Strong build and component protection
- Simplifies cable management
Cons:
- Fan may get louder under full load
- Could have more PCIe connectors
5. MSI MPG A850G Power Supply
MSI MPG A850G is designed specifically for gaming PCs that require both stability and efficiency. Its 80 PLUS Gold certification ensures top-tier energy efficiency, allowing high-performance systems to operate smoothly without excessive heat generation. Tailored for gaming enthusiasts, this PSU delivers the power needed for modern games while minimizing energy consumption.
With its fully modular design, the MPG A850G offers the flexibility to use only the necessary cables, keeping their builds clutter-free and enhancing airflow. This thoughtful feature is a major draw for gamers who prioritize both form and function. Its native 16-pin PCIe connector adds a level of future-proofing, making it capable of supporting the latest high-end graphics cards, a crucial aspect for those looking to stay ahead in gaming performance.
To ensure durability and stability, the MSI is designed with 100% Japanese 105°C capacitors, built to handle intense gaming sessions and demanding applications. The power supply’s robust design allows it to deliver consistent performance even under heavy loads. For users seeking a reliable and long-lasting solution for their high-end gaming PCs, this power supply stands out as a top contender.
Specifications:
- 80 PLUS Gold certified
- Fully modular design
- 16-pin PCIe connector included
- 100% Japanese capacitors
- Supports PCIe 5.0 and ATX 3.0
- Maximum Input Voltage: 240 Volts
- Designed for high-performance GPUs
- 135mm fan for quiet cooling
- Warranty: 10-year limited
Pros:
- Future-proof with PCIe 5.0 support
- Premium build quality with Japanese capacitors
- Sleek and compact design
- Very quiet under normal loads
Cons:
- Requires careful handling due to advanced features
- May have compatibility issues with older hardware
6. Segotep GM850 Power Supply
Segotep’s GM850 combines future technology with robust performance, making it ideal for both current and future high-end gaming and professional builds. Equipped with the latest ATX 3.0 and PCIe 5.0 standards, it ensures compatibility with next-gen hardware. Its 80 PLUS Gold certification guarantees high efficiency, allowing it to operate effectively under varying loads while minimizing energy waste and heat output.
With the GM850, effective cable management is achieved through its fully modular design, which also plays a crucial role in optimizing case aesthetics and cooling performance. Equipped with a 12VHPWR cable, delivering up to 600W of power, the GM850 is well-prepared to handle even the most demanding GPUs. For those aiming to build a powerhouse system, this PSU provides the reliability and streamlined setup necessary for maintaining peak performance.
Protecting PC from power fluctuations, the Segotep delivers multiple safeguards like OCP, OVP, UVP, OPP, SCP, and OTP, blending reliability with cutting-edge performance for demanding setups. With these extensive protective measures, it not only shields your valuable components but also enhances the overall efficiency of your system. This balance of protection and power makes the Segotep a standout choice, meeting the rigorous expectations established throughout this guide’s top power supply reviews.
Specifications:
- ATX 3.0 and PCIe 5.0 ready
- 80 PLUS Gold certified
- Full modular design
- 12VHPWR Cable included
- 240 volts maximum input
- 140mm air cooling fan
- Extensive system protections
- Supports high-end GPUs
- Flat white cables for sleek look
Pros:
- Future-proof features
- Efficient and reliable
- Advanced GPU support
- Sleek cable management
- Comprehensive protections
Cons:
- Bulky for smaller cases
- Over-spec for basic builds
7. Redragon RGPS Power Supply
Redragon’s RGPS-850W PRO is designed to deliver high performance and efficiency for advanced users and gamers alike. The 80 PLUS Gold certification ensures optimal energy usage, reducing both power consumption and heat buildup. Its fully modular design offers a streamlined approach to cable management, resulting in better airflow and a cleaner, more organized setup, perfect for demanding workloads.
With an advanced cooling solution at its core, the PSU ensures a silent experience through its Zero RPM Mode, keeping the fan off during lower workloads a feature beloved by gamers and professionals seeking quiet environments. Beyond its quiet operation, this power supply brings robust performance to the table with ATX 3.1 and PCIe 5.1 readiness. This makes it a perfect fit for the latest high-performance GPUs and motherboards, ensuring seamless compatibility and power delivery.
Designed for long-term performance, this power supply integrates 100% Japanese capacitors, ensuring dependable functionality throughout its lifespan. This ensures uninterrupted operation, making it a reliable source of power for both current and future technologies.
Specifications:
- 80 PLUS Gold certified
- Zero RPM fan mode
- Fully modular cables
- ATX 3.1 & PCIe 5.1 ready
- 100% Japanese capacitors
- Dual CPU P8 (4+4) support
- Mainstream LLC resonant + DC-DC
- 2000 RPM max fan speed
- Compact 150mm size
Pros:
- Highly efficient energy use
- Silent under low loads
- Future-proof specifications
- Compact and durable design
- Effective cooling management
Cons:
- Overkill for moderate systems
- Fan noise at high loads
Buyer’s Guide For 850w Power Supply
As a reliable power source, an 850W power supply unit is quite essential to provide the required power to all the new-gen PC components for stable performance, preventing malfunction or shutdown. With numerous options on the market, selecting the perfect PC power supply companion will be quite difficult. So, we are here with a guide that explains every factor to be considered and lets you know how to choose your ideal option.
Let’s get into the details of factors to check during selection:
1. Efficiency Rating
It determines how an 850W PSU converts the input AC power into usable DC output power for stable PC performance. So, the efficiency rating is the crucial factor to check, as it affects both the energy consumption and heat generation of the power supply. The 80 Plus certification determines the PSU’s efficiency, and it should be at least 80% efficient at 20%, 50%, and 100% of load, while most models achieve higher ratings like 80 Plus Bronze, Silver, Gold, Platinum, or Titanium. A unit with a high-efficiency rating will waste less energy than heat during the conversion process. Thus, it results in low operating costs, enhanced cooling, and reduced environmental impact which is vital for longevity and system stability.
2. Modular Vs. Non-Modular Design
Non-modular, semi-modular, and fully modular are three common designs of power supply units. Here we have explained them clearly to help you choose the best.
- Non-Modular Units – In this non-modular design, all the cables are attached permanently, resulting in excess cables cluttering the case. This will hinder the airflow and also make the system look untidy.
- Semi-Modular Units – This design provides better cable management by offering a middle ground. While some essential cables are fixed, others are detachable.
- Fully Modular Units – This design allows for complete cable customization that offers a clean setup with enhanced airflow and aesthetics.
Among all these designs, the fully modular units are the most preferred and expensive option compared to others. This is an ideal option for those prioritizing a neat & tidy interior and optimal airflow.
3. Cable Management
Effective cable management is essential for optimal performance and aesthetics. Even though the modular design allows for easy cable routing behind the motherboard tray, you need to look for PSUs with flat, sleeved cables. These flat cables are much more manageable and visually appealing. Always remember that proper cable management isn’t just about enhancing your build’s look, it should also promote better cooling by reducing any airflow obstruction. Therefore, it is essential to maintain optimal hardware temperatures.
4. Cooling Solutions
It’s always essential to check the cooling solutions used in the power supply. Usually, a PSU featuring high-quality fans with effective cooling technology will reduce the noise level and enhance the overall performance. Some 850W PSUs feature temperature-controlled fans that will adjust the speed based on the load. Thus, all these cooling solutions provide a proper balance between performance and noise.
5. Protection Features
A reliable power supply unit should offer protection against abnormal power fluctuations or other issues to prevent any damage to your PC hardware. So, look for models that offer protection from:
- Over Voltage Protection (OVP)
- Under Voltage Protection (UVP)
- Short Circuit Protection (SCP)
- Over Current Protection (OCP)
- Over Temperature Protection (OTP)
6. Additional Features
Any device/product offering extra features to enhance its core functionality is always an added advantage. Here are some additional features you have to check and choose as per your requirements.
- RGB lighting will add visual appeal to your PC build, especially for gaming. Although it doesn’t directly impact the performance, it can aid in an immersive gaming experience.
- Fanless Design will allow for silent operation, making the PSU an ideal option to use in noise-sensitive environments, like studios.
- Digital Interfaces are particularly seen in high-end models. This feature allows for real-time monitoring of power draw, efficiency, and fan speed. It is a perfect feature for professionals and enthusiasts to keep a close eye on their system’s performance.
7. Warranty & Reliability
Never overlook the warranty and the brand reputation of the 850W PSU before making its purchase. A unit with a longer warranty is an indication of its better quality, reliability, and longevity. So, look for the PSUs from popular brands that are well-known for their durability and reliability to have peace of mind over your investment.
FAQs:
No, not all 850W power supplies will support PCIe Gen 5 connectors. To support PCIe Gen 5 graphics cards, the PSU needs to be ATX 3.0 power delivery compliant and has a 12VHPWR (16-pin) connector. While the new 850W units meet these requirements, older power supplies released before the PCIe Gen 5 version don’t. So, it is essential to check the specifications of the model to confirm its compatibility.
Yes, you can use an 850W power supply unit for most workstation PCs having high-end GPUs, CPUs, and several storage drives. Though it can easily handle several powerful components, you need to check the power needs of your specific setup. However, a higher-wattage power supply (like 1000W PSU or 2000 PSU) is needed to handle multiple high-performance GPUs or other demanding parts for stable performance.
Yes, it will affect the PC’s cooling system. Usually, these 850W PSUs generate more heat even while offering adequate power for demanding components. This generated heat raises the overall temperature inside the case, which adds extra strain to the cooling setup. To get rid of this, use quality cooling components (like fans or liquid cooling), and place the PSU to avoid heat buildup and ensure proper airflow.
Yes, 850W PSU supports dual GPUs, but it completely depends on the power requirements of the specific GPUs. Generally, high-end graphics cards consume a lot of power. So, check the overall power draw, and if the total is within the 850W limit, then the PSU works fine. But to fuel the power-hungry GPUs, go with a higher-wattage power supply unit for stable performance.
Some 850W power supplies have this RGB lighting feature, but not all. Most brands offer models with customizable RGB LED strips or fans for an aesthetic look. So, if you are looking for this RGB lighting feature, you need to check and confirm that the particular model is offering this feature before purchasing.
Conclusion
Finding the best 850W power supply is about balancing performance, reliability, and value. After reviewing several models, three stand out:
- Corsair RMX Power Supply for its high efficiency and excellent build quality.
- EVGA 850 G5 Power Supply for its sturdy design and strong power delivery.
- Thermaltake Toughpower GX3 PSU for its great value and quiet operation.
Whether you want premium features or a budget-friendly option, these power supplies offer reliable performance and future-proofing for demanding PC builds.
