With so many great Best 1000 Watt Power Supply to pick from, like those from brands such as Corsair,NZXT,Pystar,MSI,ASUS, it can be tricky for customers to decide what to buy. But after extensive research, we’ve discovered the stand-out Best 1000 Watt Power Supply currently on the market.
Our team rigorously tested numerous products available to consumers. The one that stands at the top of our list is Corsair Best 1000 Watt Power Supply, thanks to its impressive performance and features. Below you’ll find more of our top-rated picks, along with insightful analysis from our seasoned experts. Check out their thoughts before making your purchasing choice. With this guide backing your decision, you’re sure to end up with a Best 1000 Watt Power Supply you’ll love.
Editor's Choice
CORSAIR RM1000x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support
Premium Pick
CORSAIR RM1000e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 &
Budget Pick
NZXT C1000 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 1000 Watts - 80 Plus Gold
Top 10 Best 1000 Watt Power Supply
We researched and compared the top products in the Best 1000 Watt Power Supply category to provide you with these recommendations.
1. CORSAIR RM1000x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support
- Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.
- Cybenetics Gold-Certified: Rated for up to 91% efficiency, resulting in lower power consumption, less noise, and cooler temperatures.
- ATX 3.1 Compliant: Compliant with the ATX 3.1 power standard from Intel, supporting PCIe 5.1 and resisting transient power spikes.
- Native 12V-2x6 Connector: Ensures compatibility with the latest graphics cards with a direct GPU to PSU connection no adapter necessary.
- Embossed Cables with Low-Profile Combs: Sleek, ultra-flexible embossed cables look great and make installing and connecting the RMx a breeze.
2. CORSAIR RM1000e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 &
- Fully Modular PSU: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
- Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting PCIe 5.1 platform withstands 2x transient power excursions from the GPU.
- Keeps Quiet: A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
- 105C-Rated Capacitors: Delivers steady, reliable power and dependable electrical performance.
- Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
3. NZXT C1000 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 1000 Watts - 80 Plus Gold
- ATX 3.1 Compliant with the ATX 3.1 standard to fuel high-performance PC components with stability, efficiency, and power spike resistance.
- 40 SERIES READY Durable, heat-resistant 12V-2x6 connector pumps up to 600 watts to NVIDIA GeForce RTX 40 Series graphics cards.
- HIGH EFFICIENCY, LOW NOISE Awarded certifications of 80 PLUS Gold Efficiency, Cybenetics Gold Efficiency, and Cybenetics A Noise Level.
- ULTRA-LOW NOISE FAN 135mm fluid dynamic bearing fan with Zero Fan Mode is completely silent when under 50% load.
- HIGH-QUALITY CONSTRUCTION 100% premium Japanese capacitors improve hold-up time and minimal ripple noise, ensuring reliable and stable power delivery.
4. Pystar 1000W Power Supply 80+ Gold Full Modular PSU,ES1000
- 80 Plus: 1000W with 80 Plus Gold certified, reach 90% efficiency or higher under typical loads.
- Full ModularFull modular to improve airflow and reduce clutter,manage cables more easily.
- DC-DC structureDC-DC structure makes the power output more stable and safe.
- Quiet Fan140mm fan keep quiet while maintaining good heat dissipation.
- Protection & WarrantyFull protection including OVP/UVP/SCP/OPP/OCP with 10 year warranty.
5. MSI MAG A1000GL PCIE 5 Gaming Power Supply - ATX 3.1 & PCIE 5.1 Ready - Full Modular - 80 Plus Gold
- 80 PLUS GOLD CERTIFIED
- 10-year limited warranty, guaranteeing long term reliable operation
- Fully modular design
- ATX 3.1 & PCIE 5.1
6. ASUS TUF Gaming 1000W Gold (1000 Watt, ATX 3.0 Compatible Fully Modular Power Supply, 80+ Gold
- Capacitors and chokes pass demanding tests to achieve Military-grade Certification.
- Dual ball fan bearings can last up to twice as long as sleeve bearing designs.
- A protective PCB coating protects against moisture, dust, and extreme temperatures.
- An 80 Plus Gold Certification is the result of Japanese capacitors and other premium components.
- ATX 3.0 Compatible: TUF Gaming Gold is compliant with ATX 3.0 guidelines and bundled with a 16-pin PCIe cable that can pipe up to 600W of power to PCIe Gen 5.0 graphics cards.
7. Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply - ATX 3.0 & PCIe 5.0 Compliant -
- Fully Modular Cabling: Connect only the cables your system needs, making clean and tidy builds easy.
- Intel ATX 3.0 Certified: Compliant with the ATX 3.0 power standard, supporting the PCIe Gen 5 platform and resisting transient power spikes.
- 140mm Fluid Dynamic Bearing (FDB) Fan: Delivers extremely quiet and long-lasting fan performance.
- Powerful CORSAIR iCUE Software: Create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection (OCP) on-thefly.
- Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation.
8. Seasonic Vertex GX-1000-1000W - 80+ Gold - ATX 3.0 & PCIe 5.0 Ready - Full-Modular - ATX Form Factor
- wattage: 1000.0 watts
- item_weight: 5.95 pounds
- compatible_devices: Personal Computer
- cooling_method: Air
- connector_type: atx,pcie
- output_wattage: 1000.0
- High Efficiency, 80 PLUS Gold Certified
- ATX 3.0 & 16-Pin Gen 5 PCIe Cable (12VHPWR)
- Fully Modular Cabling Design
- 135 mm Fluid Dynamic Bearing (FDB) Fan
- Seasonic Hybrid Silent Fan Control
9. Corsair RMX Series (2021), RM1000x, 1000 Watt, Gold, Fully Modular Power Supply (Renewed)
10. Apevia ATX-PR1000W PCIe 5.0 Prestige 1000W 80+ Gold Certified, PCIe 5.0 / Gen 5 12VHPWR Connector,
- Apevia ATX-PR1000W PCIe 5.0 Version Prestige 1000W With PCle 5.0 / Gen 5 12VHPWR 12+4 (12pin/16pin) PSU Connector, 80 Plus Gold Certified & RoHS Compliance, Active PFC ATX Gaming Power Supply.
- Supports Dual /Quad/Multi-Core CPUs. Supports Single 12V Output for Higher Power Usage. Ample +12 V Output, enhanced +12 V current capability broadens utilization possibilities.
- DC to DC Converter Design, Provides Superior Dynamic Response, Greater Sytem Stability and Maximizes the 12V DC Rail Output. Multi-GPU Technologies Supported; 6 Pin and 8 Pin PCI-E Connectors, PCle 5.0 / Gen 5 12VHPWR PSU Connector, Support all GPU Platforms. Built in 1 x Auto-Thermally Controlled Black 135mm Fan
- Heavy-duty protections, Including OVP (Over Voltage Protection), OPP (Over PowerProtection), SCP (Shart Circuit Protection). Includes the PCle 5.0 / Gen 5 12VHPWR 12+4 (12pin/16pin) PSU connector to deliver power to the most advanced PCIe 5.0 high end graphics cards.
- Connectors:1 x 20/24pin Main Power, 2 x 4/8pin 12V, 1 x PCIe 5.0 / Gen 5 12VHPWR 12+4pin (12pin/16pin), 4 x PCI 6+2pin, 7 x SATA, 4 x Peripheral
Peter
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