The Best 800W Power Supply: A Comprehensive Buyer's Guide
David Hill Jun 4, 2023 5:05 PM
For those looking to power their most demanding gaming and professional workstation PCs, the 800w power supply is an ideal choice. It is capable of delivering up to 800 watts of power, providing more than enough power for a high-end gaming PC or workstation. It features a single +12V rail that can deliver up to 66.6 amps of power, making it perfect for powering multiple video cards and other heavy-duty components. Additionally, the power supply comes with a variety of connectors for SATA, PCI-E, Molex, and FDD connectors. It is also 80 Plus certified, meaning it is highly efficient and can help save money on electricity costs.

Quick Comparison
No | Image | Product | Score | Check |
---|---|---|---|---|
1 | ![]() | Apevia ATX-PR800W Prestige 800W 80+ Gold Certified | 9.9 | Check Price |
2 | ![]() | Cooler Master G800 Gold Power Supply | 9.8 | Check Price |
3 | ![]() | Apevia ATX-GX850W Galaxy 850W 80+ Gold Certified Active PFC ATX | 9.7 | Check Price |
4 | ![]() | Apevia ATX-JP800W Jupiter 800W 80 Plus Bronze Certified Active PFC ATX Gaming Power Supply | 9.5 | Check Price |
5 | ![]() | Segotep GM850 Power Supply 850W | 9.2 | Check Price |
#1:Apevia ATX-PR800W Prestige 800W 80+ Gold Certified
Verdict
Apevia ATX-PR800W Prestige 800W 80 Plus Gold Certified & RoHS Compliance, Active PFC ATX Gaming Power Supply is a great choice for any gaming enthusiast that needs a reliable and powerful power supply.
Specs
- 3-year warranty
- Supports Dual/Quad/multi-core CPUs
- Dc to DC converter design
- Multi-gpu technologies supported
- 1 x 20/24pin main power
- 1 x 4/8pin 12V
- 2 x PCI 6+2pin
- 7 x SATA
- 4 x peripheral
- All protections
Pros
- Reliable and powerful
- Great for gaming enthusiasts
- Dc to DC converter design for greater system stability
- Multi-gpu technologies supported
- All protections
Cons
- None
#2:Cooler Master G800 Gold Power Supply
Verdict
The Cooler Master G800 Gold Power Supply is an ideal choice for anyone looking for an efficient and reliable power supply unit. It meets Intel ATX 2.52 standards, and is certified 80 PLUS gold, guaranteeing a typical efficiency of 90%. It also comes with two EPS connectors and a high temperature resistance up to 40℃, making it a great choice for anyone looking for a reliable power supply.
Specs
- 80 PLUS Gold Certified
- Intel ATX version 2.52
- Hydrodynamic Fan
- 2 EPS Connectors
- High Temperature Resistance
Pros
- High efficiency
- Meets Intel ATX 2.52 standards
- Two EPS connectors
- High temperature resistance up to 40℃
- Quiet operation
- 5 year warranty
Cons
- Fixed flat black cables
#3:Apevia ATX-GX850W Galaxy 850W 80+ Gold Certified Active PFC ATX
Verdict
The Apevia ATX-GX850W Galaxy 850W 80+ Gold Certified Active PFC ATX Semi-Modular Gaming Power Supply is a great choice for gamers with powerful systems. It offers high wattage, high grade quality components, and great protection features while being semi-modular for ease of cable management.
Specs
The Apevia ATX-GX850W Galaxy 850W 80+ Gold Certified Active PFC ATX Semi-Modular Gaming Power Supply offers an impressive 850W of power and is 80+ Gold certified for efficiency. It has a modular design that supports cable management and includes connectors for 1 x 20/24pin Main Power, 2 x P8(4+4P) ESP 12V, 4 x SATA + 4 x 8(6+2)pin PCI-E, 4 x Peripheral, and 1 x Floppy. It also has a single 12V output for higher power usage, an auto-thermally controlled 135mm black fan, and heavy duty protections against short-circuiting, over-voltage, over-power, and under-voltage. The power supply supports ATX 12V 2.3 version and is compatible with dual/quad core CPUs and SLI/Crossfire/Haswell.
Pros
- High wattage
- High grade quality components
- Great protection features
- Semi-modular for easy cable management
- 80+ Gold certified for efficiency
- Compatible with dual/quad core CPUs and SLI/Crossfire/Haswell
Cons
No significant cons.
#4:Apevia ATX-JP800W Jupiter 800W 80 Plus Bronze Certified Active PFC ATX Gaming Power Supply
Verdict
The Apevia ATX-JP800W Jupiter 800W 80 Plus Bronze Certified Active PFC ATX Gaming Power Supply is a great choice for gamers looking for a reliable and powerful power supply.
Specs
The Apevia ATX-JP800W power supply comes with 3-year warranty and features Auto-Thermally Controlled 135mm Black Fan, Single 12V Output for Higher Power Usage and Supports ATX 12V 2.3 Version, Dual/Quad Core CPUs, SLI/Crossfire/Haswell. It has Connectors: 1 x 20/24pin Main Power, 1 x P8(4+4P) ESP 12V, 4 x SATA + 4 x 8(6+2)pin PCI-E, 4 x Peripheral, 1 x Floppy. The Output is +3.3V@20A, +5V@20A, +12V@58A, -12V@0.3A, +5Vsb@2.5A and features Heavy Duty Protections: Short-Circuit/ Over-Voltage/ Over-Power/ Under-Voltage Protectionss.
Pros
- 3-year warranty
- Auto-Thermally Controlled 135mm Black Fan
- Single 12V Output for Higher Power Usage
- Supports ATX 12V 2.3 Version, Dual/Quad Core CPUs, SLI/Crossfire/Haswell
- Connectors: 1 x 20/24pin Main Power, 1 x P8(4+4P) ESP 12V, 4 x SATA + 4 x 8(6+2)pin PCI-E, 4 x Peripheral, 1 x Floppy
- Output: +3.3V@20A, +5V@20A, +12V@58A, -12V@0.3A, +5Vsb@2.5A
- Heavy Duty Protections: Short-Circuit/ Over-Voltage/ Over-Power/ Under-Voltage Protectionss
#5:Segotep GM850 Power Supply 850W
Verdict
The Segotep GM850 Power Supply 850W is an excellent choice for gamers looking for reliable performance and efficiency. It comes with a fully modular design, 80 Plus Gold certification, ATX 3.0 & PCIe 5.0 Ready, and Native 12VHPWR Cable support. It is compatible with all major graphics cards, making it a great choice for gaming builds.
Specs:Specs
- ATX 3.0 & PCIe 5.0 Ready
- 80 Plus Gold Certified
- Fully Modular
- Native 12VHPWR Cable
- Graphics Cards Support for All
Pros
- High power efficiency
- Modular design for improved airflow and cable management
- Compatible with all major graphics cards
- 5 year warranty
Cons
The only downside to the Segotep GM850 Power Supply 850W is the price. It is a bit expensive compared to other similar power supplies.

- Score9.9
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandApevia
- Prime

- Score9.8
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandCooler Master
- Prime

- Score9.7
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandApevia
- Prime

- Score9.5
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandApevia
- Prime

- Score9.2
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandSegotep
- Prime

- Score9.1
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandCHENGLIANG POWER SUPPLY
- Prime

- Score8.9
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandRaidmax
- Prime

- Score8.8
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandCorsair

- Score8.5
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandApevia
- Prime

- Score8.4
Apcstart Score is a ranking system developed by Apcstart.com. Apcstart score has no relationship or impact from any manufacturers or sales agent websites. Learn more
- BrandGeneric
Last update on 2023-06-04 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API
The Best Nvidia GeForce GTX 550 Ti for Your Setup: Reviews & Buyers Guide: The Best Nvidia GeForce GTX 550 Ti Graphics Card for Gaming and Multimedia.

Best 800w Power Supply: Our Picks for High-Performance Computing. Image source: Amazon.com
What is a 800w power supply?
A 800w power supply is an internal power supply unit that supplies DC power to the components of a computer. It provides the necessary voltage and current to the components to operate correctly.
How does a 800w power supply work?
A 800w power supply works by taking the AC power from the wall outlet and converting it to the necessary DC power for the components. It also regulates the voltage and current to provide the components with the necessary power.
What are the benefits of using a 800w power supply?
The benefits of using a 800w power supply include increased system stability, improved efficiency, and greater compatibility with newer components. The higher wattage also allows for more powerful components to be installed in the system.
What should you consider when buying a 800w power supply?
When buying a 800w power supply, you should consider the amount of power needed for your system, the efficiency level, the connectors available, and the size of the unit. You should also look for units with good reviews and customer support.
Best GPU Water Cooling of 2023: Reviews & Buyer's Guide: The Best GPU Water Cooling Solutions for Maximum Performance.

Best 800w Power Supply: Our Top Picks for 2023. Image source: Amazon.com
I think Apevia ATX-PR800W Prestige 800W 80+ Gold Certified is the best 800w power supply you can find on the market. It's reliable, powerful and provides excellent performance. It also comes with a good warranty and customer service, which makes it a great choice for anyone looking for a reliable power supply.