Best 1000 Watt Power Supply

Peter | 02-01-2026

In this article, we will explore the Best 1000 Watt Power Supply that are now on the market. In addition to that, we have provided you with a detailed guide that will assist you in choosing the right product. We really hope that by looking through the reviews of the top Best 1000 Watt Power Supply products that we’ve provided below, you’ll be able to quickly narrow your choices and select the one that best satisfies your needs.

We have spent lots of time testing. According to our research, we think Corsair Best 1000 Watt Power Supply is the best overall. For more of our top picks, read on! Also, check out our buying guide for some tips on how to choose the right Best 1000 Watt Power Supply.

Editor's Choice
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics
Premium Pick
be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for
be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for
Budget Pick
CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – 12V-2x6 Cable Included,
CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – 12V-2x6 Cable Included,

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 ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics

CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics
9.8

Corsair

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  • 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. Rosewill VMG 1000W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1

Rosewill VMG 1000W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1
7.9

Rosewill

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  • Intel ATX 3.0 & 3.1 Ready.
  • Full Modular 80 PLUS Gold Certified.
  • PCIe 5.1 / Gen 5 12+4 Pin 12V-2x6 Cable.
  • Up to 235% Power Excursion & 300% GPU Power Excursion.
  • Optimized Thermal Control: Steel shell with large vents and 120mm FDB fan enhance cooling performance.
  • Next-Gen GPU Support: Dedicated PCIe 5.1 cable delivers 600W direct power to new graphics cards.
  • Compact Build Ready: 14015086mm chassis (35% smaller) enables flexible small-form-factor integration.
  • Safety Shield: Six-protection suite (OCP/OPP/OTP/OVP/SCP/UCP) ensures complete system security.

3. MSI MAG A1000GL PCIE5, Fully Modular Compact Gaming 1000W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1

  • 80 PLUS GOLD CERTIFIED
  • 10-year limited warranty, guaranteeing long term reliable operation
  • Fully modular design
  • ATX 3.1 & PCIE 5.1

4. be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for

be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for
9.5

Be Quiet!

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  • 80 PLUS GOLD CERTIFIED Very high operating efficiency Pure Power 13 M 1000W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 94.4%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 13 M 1000W is always the correct choice for quiet systems and gaming PCs!
  • FUTURE-PROOF YOUR SYSTEM Fulfills all ATX 3.1 specifications Pure Power 13 M 1000W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and 4 PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come
  • THE NEW STANDARD OF POWER For massive transient loads Pure Power 13 M offers 1000W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Pure Power 13 M 1000W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards
  • SEMI-PASSIVE ZERO-RPM COOLING Enjoy the silence While under low load, the fan turns off completely until its services are needed again for more demanding operations. This feature, combined with the reliable be quiet! fan and its airflow-optimized fan blades, make Pure Power 13 M 1000W exceptionally silent in all load scenarios
  • HIGH-CLASS TECHNOLOGIES Rock-solid stability With its LLC topology Pure Power 13 M 1000W provides best-in-class voltage regulation and efficiency. That makes it perfect for building very quiet systems or upgrading gaming and media creation PCs
  • MODULAR CABLES Utmost convenience and compatibility Thanks to their modularity, all unnecessary cables in the system are left out. Pure Power 13 M 1000W simplifies cable management and routing for a tidy-looking system. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures inside the case.

5. CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – 12V-2x6 Cable Included,

CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – 12V-2x6 Cable Included,
8.9

Corsair

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  • 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.

6. CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – 12V-2x6 Cable Included,

CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – 12V-2x6 Cable Included,
8.7

Corsair

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  • 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

7. ASUS ROG Strix 1000W Platinum (Fully Modular Power Supply, 80 Plus Platinum Certified, ATX 3.1,

  • GaN MOSFET delivers superior power efficiency by up to 30% and a more organized internal layout for cooler operation
  • "GPU-First" voltage sensing with patented-intelligent voltage stabilizer enhances voltage delivery by up to 45% to your graphics card for smoother gameplay and unwavering performance
  • Large ROG heatsinks cover critical components, delivering lower temperatures and noise than reference designs
  • Dual ball fan bearings can last up to twice as long as sleeve bearing designs
  • 0dB technology lets you enjoy light gaming in relative silence
  • ATX 3.1 compatible: ROG Strix Platinum is compliant with ATX 3.1 standard, ensuring enhanced voltage and current regulation
  • PCIe 5.0 Ready: ROG Strix Platinum features a native 12V-2x6 connector for next-gen graphics card power
  • 80 PLUS platinum certified: ROG Strix Platinum utilizes low-ESR capacitors and premium components for industry-leading power efficiency
  • 10-year warranty included

8. ASRock Steel Legend SL-1000G 1000W 80 Plus Gold & Cybenetics Platinum Full Modular Power Supply

  • 80 PLUS GOLD Certified
  • Cybenetics PLATINUM and LAMBDA A+ Certified
  • ATX3.1 & PCIe5.1 Ready
  • Fully Modular Cable Design
  • 100% Highly Reliable Japanese Capacitors
  • iCool Intelligent Fan Control Mode
  • Built-in 5V BOOST function
  • Remarkable 10-Year Warranty
  • 135mm Striped Axial FDB Fan

9. 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.

10. Thermaltake Toughpower GT 1000W; ATX 3.1; Native PCIe 5.1 12V-2x6; Full Modular; Flat Cables; Color

Thermaltake Toughpower GT 1000W; ATX 3.1; Native PCIe 5.1 12V-2x6; Full Modular; Flat Cables; Color
8.7

Thermaltake

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  • ATX 3.1Built to ATX 3.1 specifications means the Toughpower GT 1000W is capable of handling up to 3x GPU power excursions and up to 2x total power excursions, while maintaining low load efficiency as well.
  • Native 5.1 12V-2x6Featuring a native PCIe 12V-2x6 cable capable of delivering up to 600W to meet power demands for modern GPUs.
  • Perfect FitGreat for systems that are low on space but not necessarily SFF in size the Toughpower GT is ideal thanks to its 140mm length and full modular cable set.
  • Stylish Flexiblity The included Full Modular cable set now features flat cables with color matched connectors to provide an improvement in flexibility for routing and management.
  • Cool and QuietProviding cooling is a hydraulic bearing 120mm fan tuned to provide good airflow and low noise, and for even less noise utilize the Smart Zero Fan mode.

Peter

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