In the ever - evolving realm of PC hardware, a reliable power supply is the lifeblood of any high - performance system. For enthusiasts and gamers looking to build or upgrade a rig that can handle the most demanding tasks, an 850W power supply often emerges as a popular choice. This comprehensive guide will explore everything you need to know about 850W power supplies, with a focus on models that feature 80 Plus Gold certification and the allure of white - colored units, while also delving into price considerations and top - rated products available at Best Buy.
Understanding the 850W Power Rating
The power rating of a power supply, in this case, 850W, indicates the maximum amount of continuous power it can deliver to your PC components. This is crucial as modern high - end components, such as powerful graphics cards, multi - core processors, and multiple storage drives, can draw a significant amount of power. A 850W power supply provides ample headroom for systems with high - end GPUs like the NVIDIA GeForce RTX 40 series or AMD Radeon RX 7000 series, which can consume several hundred watts under load. It also ensures stable power delivery to overclocked processors, preventing power - related throttling and system crashes.
80 Plus Gold Efficiency: What It Means
80 Plus Gold certification is a mark of efficiency for power supplies. A power supply with this certification is required to operate at a minimum efficiency of 87% at 20% load, 90% at 50% load, and 87% at 100% load. This high efficiency not only saves you money on your electricity bill over time but also reduces heat generation within the power supply. Less heat means the internal components, such as capacitors and transistors, are under less stress, leading to a longer lifespan for the power supply. In an 850W 80 Plus Gold - certified power supply, you can expect a more stable and efficient power delivery to your PC components, translating into better overall system performance.
The Appeal of White 850W Power Supplies
White - colored power supplies have gained popularity in recent years, especially among PC builders who are aiming for a cohesive and aesthetically pleasing build. A white 850W power supply can add a touch of elegance and style to a build, especially when paired with other white - colored components or in a case with a window. Brands like Corsair offer white - themed power supply models, such as the Corsair RMX White Series RM850x. These units not only look great but also come with the same high - quality features as their black counterparts, including full modularity, high - efficiency ratings, and reliable power delivery. The white casing can also reflect heat better than black in some cases, potentially contributing to slightly lower internal temperatures.
Price Range of 850W Power Supplies
The price of an 850W power supply can vary significantly depending on factors such as brand, efficiency rating, modularity, and additional features. On the lower end, you can find some budget 850W power supplies starting around 80−100. These units may still offer decent performance and basic protection features but may lack in terms of high - quality components and advanced technologies. Mid - range 850W power supplies, which often come with 80 Plus Gold certification and some level of modularity, typically range from 120−180. Brands like Seasonic, EVGA, and Corsair offer a variety of models in this price range. High - end 850W power supplies, with top - of - the - line features such as fully modular cables, 100% Japanese capacitors, and advanced cooling technologies, can cost upwards of $200.
Top 850W Power Supplies Available at Best Buy
GameMax GX-850 Modular,80+ Gold ATX Power supply, One of the innovative Gold design basis on Platinum Level, LLC and DC-DC circuit.
• The classic efficiency over 92%, The free-cable technology featured
• GameMax GX series power supply 80+ Gold certified that offers great value to gamers and system builders
• FDB Fan reduces heat during heavy load while keeping the noise level down, Designed with stability and durability, GX Series is the perfect choice to power your systemsLLC+DC--DC high-efficiency 80+ Gold APFC Certified
• DC-DC integrated energy storage inductor, quiet and highly efficient100-240Vac full voltage input
• Multiple PCIE interfaces fully support the latest graphics cardsIntegrated all solid capacitor, Free-Cable module output, lower loss powerFarad resonance capacitor is stable and efficient
• 105℃ mainstream capacitor has long life and smooth output
• The temperature-controlled fan is extremely quiet
• Total SEVEN levels of protection, OTP, OCP, SCP, OVP, UVP, OPP, SIP
• All black flat pure copper output line, efficient and powerful
• Components by SMT produced, Quick heat dissipation and more stable
GameMax 80 plus Bronze Certified GP-850 None-Modular PSU features a cut-edge DC-to-DC design, Provides high-performance business and gaming build, and experiences gaming Bliss with the GP-850 power supply!
• Engineered with high-end components, Elegant black PSU casing with black flat cable.
• DC-to-DC technology ensures optimal power efficiency and stable output across all components.
• ATX12V 80 PLUS Bronze Certified power supply ensures high energy efficiency and minimizes heat generation.
• Extended 12V Rail for high compatibility and extremely high current output
• Longer 12V8pin(4+4) pins up to 650mm is easy for high-end tower chassis installation
• 14cm silent black fan provides silent operation and efficient cooling system with smart thermal sensor.
• Features six essential safety mechanisms providing system stability with OVP/UVP/ OPP/OCP/OTP/SCP.
• Safety Certified by TUV Lab with CE strict standards.
• 850W Power: Fully modular, 80+ Gold Certified, 90% efficiency
• Advanced Design: LLC+DC-DC with powerful single +12V rail.
• Compatibility: Supports ATX 3.0/3.1, PCIe 5.0/5.1, 16-pin 12V-2*6 for latest GPUs.
• RGB Lighting: 140mm ARGB fan with 25 lighting modes, syncs with major motherboard brands.
• High-Quality Components: Japanese bulk capacitor for durability and stability.
• Quiet Cooling: 140mm ultra-quiet fan with automatic temperature control.
• Wireless Design: Wireless design for cleaner setup and better heat dissipation.
• Comprehensive Protection: OPP/OVP/UVP/SCP/OCP/SIP for stability and safety.
GameMax RGB-850 PRO Fully Modular 80+ Gold Certified,12V SYNC Rectification design for Powerful single +12V rail helps ensure a stable and reliable supply to other PC components
• With 140mm ARGB fan helps deliver brighter and stunning light effect and supports synchronization with compatible RGB motherboards from ASUS, GIGABYTE, MSI, and ASRock for countless illumination possibilities.
• 80 Plus Gold Certified: RGB-850 PRO uses the main Japan Capacitor with 90% efficiency or higher under typical loads
• Lower power consumption, less noise, and cooler temperatures.RGB Light Mode: 25 smart RGB lighting modes with memory function, press the RGB controller switch to choose the color mode you like single color mode, breathing lights mode, and color mix mode.
• Full Modular: 100% Free-Cable Internal PCB Design, Farewell to messy cables!
• The daughterboards are directly soldered to the motherboard for better heat dissipation and impressive output power quality.
• Ultra-quiet fan: The 140mm ultraquiet fan keeps your power supply quiet while maintaining good heat dissipation.
• Output and Protection: Powerful single +12V rails offer stable DC output and support high-end graphic cards and PC systems
• Excellent capacitors offer stability, durability, and reliability, OPP/OVP/UVP/SCP/OCP/SIP electrical protection included.
850W 80 Plus Gold ATX3.1 PCIe5.1 power supply with PCIe5.1 12V-2*6 connector for direct RTX™ 40 Series GPU connection, minimizing current loss.
• ATX3.1 & PCIe5.1 ready with 12V-2*6 connector
• LLC MPS1213 Chipset optimizes LLC resonant circuit for high efficiency at all loads
• UP3861 Chip ensures stable 3.3V and 5V outputs with reduced ripple noise
• MPS6924 Chip boosts efficiency via optimized synchronous rectification
• 105℃ Japanese bulk capacitors ensure long life and stable output
• Quiet, temperature-controlled axial fan for efficient cooling
• Seven protection levels: OTP, OCP, SCP, OVP, UVP, OPP, SIP
• Black flat copper output cables for efficient power delivery
• SMT-produced components for fast heat dissipation and stability
• The GameMax SFX Series Power Supplies offer compact, high-performance solutions designed for small form factor builds, combining efficiency and reliability in one package。
• Exceptional Performance: Certified 80 PLUS efficiency, precise voltage regulation, and smart fan control ensure dependable operation.
• Compact and Powerful: The SFX Modular 850W (2024) measures 125mm x 110mm x 65mm, delivering robust power in a small footprint.
• Optimized Cooling: GameMax hybrid fan control automatically adjusts cooling based on system demands for maximum efficiency.
GameMax RGB Series 850W Power Supply 80 Plus Gold Certified Efficiency:
• 80 Plus Gold Certified Efficiency: Achieves up to 92% energy efficiency, reducing power waste and ensuring stable, reliable performance.
• High-Quality Japanese Capacitors: Equipped with 105°C-rated Japanese capacitors for enhanced durability and consistent power delivery.
• +12V Single Rail Design: Provides stable power distribution, perfect for high-performance CPUs and GPUs, ensuring system stability even under heavy loads.
• Fully Modular and Flat Cable Design: Allows for efficient cable management, improving airflow and cooling performance within your case.
• ARGB Lighting with 25 Modes: Features a built-in 120mm ARGB fan with customizable lighting modes, adding a vibrant, personalized touch to your build.
The GameMax GX 850GF Modular Power Supply, 80+ Gold certified, offers top-tier performance in a compact package. Key features:
• High Efficiency: Over 92% efficient with LLC & DC-DC technology for energy savings.
• Silent & Cool: FDB fan for whisper-quiet operation and effective heat dissipation.
• Modular Design: Easy cable management for a cleaner build and improved airflow.
• Stable & Durable: All-solid capacitors and SMT components ensure long-lasting reliability.
• Broad Compatibility: Supports latest graphics cards and full voltage input range.
• Protection: Seven levels of safeguards protect your system from harm.
GAMEMAX GP 850B 80+ Bronze Ultra-Stable Power Supply with Dual DC-DC Control, Smart Fan, and Premium Heat Dissipation.
• Dual Control DC-DC Circuit: Features 180-degree phase-shifted 3.3V/5V outputs, minimizing impact on +12V input and reducing ripple noise for enhanced stability and ±2% voltage accuracy.
• Premium Taiwanese Capacitors: Utilizes high-quality TEAPO capacitors for reliable full-load performance and stable power delivery.
• Smart Temperature Control Fan 14CM: Automatically adjusts fan speed based on load, balancing energy efficiency and low-noise operation.
• Double-Sided PCB with Top-Side SMD Layout: Single-sided component design (no bottom components) improves stability and manufacturing precision.
• Enhanced Heat Dissipation: Aluminum extrusion and optimized crystal heat dissipation architecture ensure efficient cooling for sustained performance.
GameMax RGB 850G Fully Modular Power Supply
• 80+ Gold Certified Efficiency: Achieves 90% efficiency or higher under typical loads, ensuring lower power consumption, reduced noise, and cooler operation.
• 140mm ARGB Fan with Sync: Delivers vibrant lighting effects and supports synchronization with ASUS, GIGABYTE, MSI, and ASRock RGB motherboards for customizable illumination.
• Fully Modular Design: 100% wireless internal PCB layout eliminates cable clutter for improved airflow and aesthetics.
• Enhanced Stability & Reliability: Powerful single +12V rail with high-quality Japanese capacitors ensures stable power delivery to graphics cards and PC components.
• Advanced Protection & Ultra-Quiet Operation: Includes OPP/OVP/UVP/SCP/OCP/SIP safeguards, paired with a whisper-quiet 140mm fan for optimal cooling and minimal noise.
RGB PRO 850G 850W 80+ Gold ATX3.1 Power Supply with Adaptive Fan & ARGB SYNC
• 80 Plus Gold Efficiency: Delivers 90%+ efficiency under typical loads, cutting power use and noise for dependable performance.
• ATX3.1 & PCIe5.1 Support: Native 12V-2x6 connector ensures seamless power to RTX 40/50 GPUs, optimizing delivery and reducing loss.
• Adaptive Fan Control: 14CM fan auto-adjusts speed based on load, balancing energy efficiency with quiet operation.
• High-Quality Components: Japanese 105°C and solid capacitors guarantee durability, stability, and reliability for intensive tasks.
• Customizable RGB Lighting: 25 lighting modes with memory and ARGB SYNC support, enabling personalized and synchronized visual effects.
GS 850G 80 Plus Gold Certified SFX Power Supply with Intelligent Cooling, Japanese Capacitors, and Comprehensive Protection
• 80 Plus Gold Certified Efficiency: Enhances power efficiency and stability, reducing the risk of system crashes.
• High-Quality Japanese Capacitors: Ensures long-term reliability and stability with 105°C electrolytic and solid-state capacitors.
• Intelligent Fan Control: 9.2cm hydraulic bearing fan with PWM automatic control starts and stops based on power consumption (above 20% and below), optimizing cooling and noise.
• Advanced Wireless Output Design: Gold-plated pins and high-density copper posts enable efficient, reliable power output and improved heat dissipation.
• Comprehensive Circuit Protection: Provides multi-layered protection (OPP, OVP, UVP, OCP, SCP, OTP) to safeguard your PC and components from damage.
GX PRO 850G 80 Plus Gold Modular Power Supply: ATX3.1 Ready, Silent Cooling, & Premium Durability
• 80 Plus Gold Efficiency & Quiet Operation: Achieves 90% efficiency under typical loads with APFC+LLC+DC-DC design, minimizing power waste and noise.
• Premium Durability & Reliability: Built with Japanese 105°C capacitors and solid capacitors for long-term stability and performance.
• ATX3.1 & PCIe5.1 Ready: Features a native 12V-2x6 connector for seamless RTX 40/50 GPU compatibility and efficient power delivery.
• Advanced Thermal Management: 13.5cm FDB fan with intelligent temperature control ensures quiet cooling and optimal heat dissipation.
• Modular Design & Robust Protection: Fully modular layout with dual-stage EMI filtering and NTC thermistor safeguards against surges, while gold-plated cables ensure durable, high-conductivity connections.
GameMax GX-850 80+ Gold None-Modular ATX Power supply. Gold Efficiency: 80+ Gold certified for high efficiency.
• Innovative Circuits: LLC & DC-DC for optimal performance.
• Quiet Cooling: Low-noise FDB fan.
• Wide Compatibility: Supports latest GPUs and full voltage range.
• Safe & Reliable: Seven protections & solid components.
Power Supply 850W Fully Modular 80+ Gold Certified with RGB Light Mode , GAMEMAX RGB850 Rainbow
• 80 Plus Gold Certified: 80 Plus Gold certified with 90% efficiency or higher under typical loads
• Lower power consumption, less noise, and cooler temperatures.
• RGB Light Mode: 25 smart RGB lighting modes with memory function, press RGB controller switch to choose the color mode you like￡o single color mode, breathing lights mode, color mix mode.
• Full Modular: Modular cables not only reduce the confusion of cables' management, but also increase airflow to improve overall efficiency and heat dissipation performance
• The matched 140mm fan allows your power supply to maintain good heat dissipation while still maintaining be quiet.
• Ultra-quiet fan: The 140mm ultraquiet fan keeps your power supply quiet while maintaining good heat dissipation.
• Highest Protection Warranty: Warranty gurantted from the date of purchase
• Powerful single +12V rails offer stable DC output and support high-end graphic card and PC system
• Excellent capacitors offer the stability, durability, and reliability, OPP/OVP/UVP/SCP/OCP/SIP electrical protection included.
Making the Right Choice
When choosing an 850W power supply, consider your specific PC build requirements. If you have a high - end gaming PC with a powerful GPU and an overclocked processor, you'll want a power supply with high efficiency, plenty of connectors, and reliable power delivery. Look for units with 80 Plus Gold or higher efficiency ratings, full modularity for easier cable management, and a good reputation for build quality and reliability. Brands like Corsair, EVGA, Seasonic, and Cooler Master are well - known for producing high - quality power supplies. Also, take into account the aesthetics of the power supply, especially if you have a case with a window. A white 850W power supply can add a unique touch to your build. Finally, compare prices across different retailers, including Best Buy, to ensure you're getting the best value for your money.
In conclusion, an 850W power supply, especially one with 80 Plus Gold certification, can be a great investment for those looking to build a high - performance PC. Whether you prefer the sleek look of a white power supply or are focused on getting the best price - to - performance ratio, there are plenty of options available on the market to meet your needs.
