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10 Best 700W ATX Power Supply in 2026

Discover the top 700W ATX power supplies for 2026. We compare efficiency, protection, and build quality to help you choose the right PSU for your PC build.

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In this guide
  1. 01Top 3 picks
  2. 02Compare all 10
  3. 03In-depth reviews
  4. 04Buying guide
  5. 05Use and care
  6. 06Common questions
  7. 07Final verdict

Choosing the right power supply is crucial for system stability. A good 700W ATX unit ensures your components receive clean, stable energy without unnecessary heat or noise. This guide helps you find reliable options for various budgets and needs.

We evaluated each power supply based on efficiency ratings, build quality, and included protections. Our list covers models from budget-friendly options to premium units with modern standards. Each product offers distinct features tailored to different user requirements and system configurations.

Every pick highlights key strengths like wattage, efficiency certifications, and warranty terms. Prices can fluctuate frequently on online marketplaces so verify current costs before buying. We aim to provide clear insights to simplify your decision-making process for your next build.

Top 3 Picks for Best 700W ATX Power Supply

Best Budget

Smart W3 Series 80Plus Certified 700W Power Supply
Smart W3 Series 80Plus Certified 700W Power Supply

4.3Editor score

ATX v3.1 Spec Compatible
80PLUS Certified Efficiency
5 Year Warranty Included

Check price

Editor's Choice

MSI MAG A750GL PCIE5 Fully Modular Compact Gaming 750W Power Supply
MSI MAG A750GL PCIE5 Fully Modular Compact Gaming 750W Power Supply

4.6Editor score

80+ Gold Certified
10 Year Warranty
Fully Modular Design

Check price

Best Premium

be quiet! Pure Power 13 M 750W ATX 3.1 Fully Modular PSU 80+ Gold
be quiet! Pure Power 13 M 750W ATX 3.1 Fully Modular PSU 80+ Gold

4.6Editor score

Up to 94.3% Efficiency
ATX 3.1 Compliant
Semi-Passive Cooling

Check price

Top 10 Best 700W ATX Power Supply in 2026 Compared

This comparison table provides a quick overview of key specifications across all ten top-rated power supplies. Use it to find the best fit for your build needs and budget.

ProductsSpecificationsEditor scorePrice
1Zalman GigaMax 700W

Best Budget

Zalman GigaMax 700W
80+ Bronze Certified
120mm Silent Fan
5 Year Warranty
Non-Modular Cables
4.4Editor score

Check price

2Smart W3 Series 700W

Editor's Choice

Smart W3 Series 700W
ATX v3.1 Spec
80PLUS Certified
DC-DC Design
5 Year Warranty
4.3Editor score

Check price

3700W ATX PSU Non-Mod

Best Premium

700W ATX PSU Non-Mod
Non-Modular Connectors
120mm Fan Control
115/220V Switch
Multi-Protection Suite
4.2Editor score

Check price

4MSI MAG A750GL PCIE5

MSI MAG A750GL PCIE5
80+ Gold Certified
ATX 3.1 Ready
Fully Modular
10 Year Warranty
4.6Editor score

Check price

5CORSAIR RM750e 750W

CORSAIR RM750e 750W
ATX 3.1 Certified
105C Capacitors
Fully Modular
Rifle Bearing Fan
4.6Editor score

Check price

6ASRock PRO 750G

ASRock PRO 750G
80+ Gold Certified
ATX 3.1 Ready
Native 12V-2×6
3 Year Warranty
4.6Editor score

Check price

7Thermaltake Toughpower GX1

Thermaltake Toughpower GX1
80+ Gold Certified
Single +12V Rail
Non-Modular Design
5 Year Warranty
4.6Editor score

Check price

8be quiet! Pure Power 13 M

be quiet! Pure Power 13 M
Up to 94.3% Eff
ATX 3.1 PSU
Semi-Passive Cooling
High-Class Topology
4.6Editor score

Check price

9Rosewill VMG 750W

Rosewill VMG 750W
ATX 3.0 & 3.1
Full Modular Design
Japanese Capacitors
100% Japanese Caps
4.3Editor score

Check price

10Thermaltake Toughpower GT 750W

Thermaltake Toughpower GT 750W
ATX 3.1 Standard
80 Plus Gold Eff
Smart Zero Fan
Fully Modular Design
4.6Editor score

Check price

1. Smart W3 Series – Best Value for Modern Builds

Smart W3 Series 80Plus Certified 700W Power Supply; ATX v3.1 Spec; 120mm FDB Fan; 5 Year Warranty; PS-SPW-0700NNFAWU-14.3Editor scoreCheck price on Amazon
Smart W3 Series 80Plus Certified 700W Power Supply
ATX v3.1 Compatible
80PLUS Efficiency Rating
120mm FDB Fan
Industry Grade Protection

The Smart W3 Series is a practical choice for those seeking modern standards without a high price tag. It holds a solid rating and features the latest ATX v3.1 specification support for future components.

Pros

  • Affordable price point
  • Compatible with ATX v3.1
  • Includes 5 year warranty
  • Flat black low profile cables
  • Stable DC to DC rail design

Cons

  • Only 80% efficiency rating
  • Non modular cable management

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Its main strengths include compatibility with newer Intel standards and a reliable DC to DC design ensuring stable power delivery to your CPU and GPU. The flat black cables also help keep the build looking tidy.

While it offers good protection and a five year warranty, it lacks full modularity and the highest efficiency tier. These trade-offs are acceptable given the budget friendly positioning of this unit.

Ideal for budget conscious gamers or office builders needing reliable power. It is a strong recommendation for users prioritizing future proofing over top tier efficiency or cable flexibility.

Future Ready ATX v3.1 Support

This PSU meets the ATX v3.1 specification ensuring compatibility with next generation processors and graphics cards. It is designed to handle the evolving power needs of modern systems efficiently.

Efficient DC to DC Design

The high amperage plus 12V rail uses a DC to DC topology. This enhances stability and efficiency for key components drawing significant power during gaming or heavy workloads.

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2. MSI MAG A750GL – Best All Around Modern PSU

MSI MAG A750GL PCIE5, Fully Modular Compact Gaming 750W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2x6 Cable, 10 Year Warranty4.6Editor scoreCheck price on Amazon
MSI MAG A750GL PCIE5 Fully Modular Compact Gaming 750W Power Supply
80+ Gold Efficiency
ATX 3.1 Ready
Native 12V-2×6 Cable
10 Year Warranty

The MSI MAG A750GL is a top performer combining high efficiency with modern standards like ATX 3.1 and PCIe 5.1. It boasts an impressive rating making it a reliable choice for gamers.

Pros

  • High efficiency rating
  • Fully modular cable system
  • 10 year warranty coverage
  • Native PCIe 5.1 connector
  • Compact gaming form factor

Cons

  • Slightly higher price point
  • Limited availability

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Its fully modular design and native dual-color 12V-2×6 cable simplify cable management and ensure compatibility with the latest high-end graphics cards. The long warranty also adds significant value and peace of mind.

While it costs more than budget units the premium features justify the expense. The lack of some specific accessory options might be a minor inconvenience for certain builds.

Recommended for builders seeking a blend of reliability and future proofing. It is an excellent pick for mid to high end gaming systems needing robust power delivery and efficient operation.

80+ Gold Certified Efficiency

Achieving 80+ Gold certification means this unit converts power with minimal waste. This reduces heat output and electricity costs over time compared to lower efficiency alternatives.

Native 12V-2×6 Support

The PSU includes a native 12V-2×6 cable tailored for PCIe 5.1 graphics cards. This native support ensures safe and clean power delivery without needing adapter cables.

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3. be quiet! Pure Power 13 M – Best Premium Quiet Operation

be quiet! Pure Power 13 M 750W, ATX 3.1, Fully Modular PSU, 80+ Gold4.6Editor scoreCheck price on Amazon
be quiet! Pure Power 13 M 750W ATX 3.1 Fully Modular PSU 80+ Gold
Up to 94.3% Efficiency
ATX 3.1 PSU
Semi-Passive Zero RPM
Fully Modular Design

The be quiet! Pure Power 13 M stands out for its exceptional efficiency and silent operation. It meets ATX 3.1 standards and earns a strong rating for overall performance and reliability.

Pros

  • Exceptional efficiency rating
  • Semi-passive cooling option
  • High quality modular cabling
  • Native 12V-2×6 connector
  • Reliable power delivery

Cons

  • Premium price point
  • Heavier than average

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Its standout feature is the semi-passive cooling which allows the fan to stop at low loads for total silence. The high efficiency rating ensures minimal heat and energy waste during operation.

The premium price reflects its top tier build quality and features. While slightly heavier than others this weight indicates robust internal components that contribute to its stability and longevity.

Perfect for quiet PC enthusiasts and professional workstation builders. This unit delivers superior power quality and silence justifying the higher cost for those prioritizing acoustic performance.

Semi-Passive Zero RPM Cooling

Under low load conditions the fan stops completely to eliminate noise. This feature makes it ideal for office PCs or quiet home theater setups where silence is paramount.

Highest Efficiency Tier

With an efficiency rating reaching up to 94.3% this unit reduces energy waste significantly. You benefit from lower heat generation and reduced electricity bills over its lifespan.

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4. Zalman GigaMax – Best Basic Reliability

Zalman GigaMax 700W Power Supply 80+ Plus Certified Reliable ATX 12V PSU4.4Editor scoreCheck price on Amazon
Zalman GigaMax 700W Power Supply
80+ Plus Certified
Active PFC System
105C Capacitors
5 Year Warranty

The Zalman GigaMax offers reliable power with a strong reputation for stability. It carries a good rating and features essential protections and a high quality fan for quiet operation.

Pros

  • Stable power output
  • All black sleeved cables
  • Silent 120mm fan
  • High quality capacitors
  • Affordable price

Cons

  • Only Bronze certification
  • Non modular design

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Key strengths include the active PFC system and 105 degree capacitors ensuring consistent performance. The all black cables also help maintain a clean aesthetic inside your PC case.

It lacks modular design and top tier efficiency but provides solid performance for standard builds. The 5 year warranty adds a layer of trust for budget friendly buyers seeking longevity.

Recommended for budget builds or general use systems. It is a safe choice for users needing dependable power without the extra cost of premium features.

Active PFC Stability

The active power factor correction ensures efficient energy use and stable voltage. This helps maintain system stability even during fluctuating power conditions.

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5. 700W ATX PSU – Best Entry Level Budget

700W ATX Power Supply Non Modular PSU with 4+4 Pin Connectors Auto-Thermally Controlled 120mm Fan, 115/220V Switch4.2Editor scoreCheck price on Amazon
700W ATX PSU Non-Modular
Non-Modular Connectors
Auto-Thermal Fan Control
115/220V Switch
Multi-Protection

This basic unit is ideal for budget constrained builds needing essential power. It provides a variety of connectors and global voltage support for different regions.

Pros

  • Very affordable price
  • Multiple connector types
  • Auto fan speed control
  • Global voltage switch
  • Solid protection suite

Cons

  • Lowest rating in guide
  • No warranty info

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Its auto-thermally controlled fan helps manage noise and heat effectively. The 8 pin connectors can be split for compatibility with various legacy components.

The lack of detailed warranty information is a downside. Performance is adequate for light use but not recommended for high-end systems or heavy loads.

Best for entry level PCs or budget gaming setups. It offers the basics for functionality at a very low cost point.

Global Voltage Switch

The unit supports input voltage from 115 to 220V making it versatile for international use without needing extra adapters.

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6. CORSAIR RM750e – Best Modern High Efficiency

CORSAIR RM750e ATX 3.1 PCIe 5.1 Ready 750W Power Supply – Black4.6Editor scoreCheck price on Amazon
CORSAIR RM750e 750W
ATX 3.1 Certified
Fully Modular
105C Capacitors
Modern Standby

The CORSAIR RM750e combines modern standards with efficient operation. It meets ATX 3.1 and PCIe 5.1 readiness ensuring compatibility with new GPUs.

Pros

  • High efficiency performance
  • Quiet 120mm fan
  • Fully modular design
  • Strong transient support
  • Fast wake times

Cons

  • Standard price range
  • No native 12V-2×6 cable listed

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Its rifle bearing fan maintains quiet operation even under load. The 105C rated capacitors deliver steady reliable power for demanding workloads.

While it supports transients well it lacks a native 12V-2×6 cable. This requires adapter use for some users though compatibility remains high.

Recommended for users seeking a balance of modern features and silence. It is a solid pick for gaming builds needing reliable power delivery.

Intel ATX 3.1 Certified

Compliance with ATX 3.1 ensures it can handle higher power excursions from new graphics cards without instability.

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7. ASRock PRO 750G – Best Native Connector Support

ASRock PRO 750G Power Supply - 750W 80 Plus Gold Certified, ATX 3.1 & PCIe 5.1 Ready, Native 12V-2x6 Connector, 120mm Low-Noise Fan, 3-Year Warranty4.6Editor scoreCheck price on Amazon
ASRock PRO 750G
80+ Gold Certified
Native 12V-2×6
ATX 3.1 Ready
3 Year Warranty

ASRock PRO 750G is a strong contender for those needing native 12V-2×6 support. It holds a high rating and meets modern ATX standards effectively.

Pros

  • High efficiency rating
  • Native 12V-2×6 cable
  • Low noise cooling fan
  • Mid-range power capacity
  • Quality assurance

Cons

  • Only 3 year warranty
  • Limited cable length

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The native connector simplifies builds with new high-end graphics cards requiring direct power. Its 80+ Gold certification ensures efficient energy use and reduced heat.

The warranty period is shorter than competitors which might concern some buyers. Performance remains stable though for standard configurations.

Best for users wanting native connector support without premium prices. It is a practical choice for mid-range systems.

Native 12V-2×6 Connector

This connector directly supports modern high-performance GPUs without adapters. It ensures stable power delivery up to 450 watts safely.

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8. Thermaltake Toughpower GX1 – Best Single Rail Power

Thermaltake Toughpower GX1 80+ Gold 700W SLI/Crossfire Ready Continuous Power ATX 12V V2.4/EPS V2.92 Non Modular Power Supply 5 Year Warranty PS-TPD-0700Nnfagu-14.6Editor scoreCheck price on Amazon
Thermaltake Toughpower GX1
80+ Gold Efficiency
Single +12V Rail
Non-Modular Design
5 Year Warranty

Thermaltake Toughpower GX1 offers a strong single rail design ideal for multi GPU setups. It meets 80+ Gold efficiency and holds a high user rating.

Pros

  • High efficiency rating
  • Powerful single rail design
  • SLI/Crossfire ready
  • Silent dynamic bearing fan
  • Solid protection suite

Cons

  • Non modular cables
  • Higher price point

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The powerful +12V rail supports high GPU demands effectively. Its dynamic bearing fan ensures silent operation even under heavy loads.

The non modular design may limit cable management flexibility. The higher cost is justified by its robust internal build quality.

Best for users needing strong single rail power for specific GPU configurations. It is a reliable choice for stable performance.

Single +12V Rail Design

A single rail allows flexible power distribution for connected components. This supports higher transient loads and complex configurations.

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9. Rosewill VMG 750W – Best Capacitor Quality

Rosewill VMG 750W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1 12V-2x6 Connector, 100% Japanese Electrolytic Capacitor, 120mm FDB Silent Fan - 5 Year Warranty4.3Editor scoreCheck price on Amazon
Rosewill VMG 750W
Full Modular Design
100% Japanese Caps
ATX 3.0 & 3.1
FDB Silent Fan

The Rosewill VMG features full modularity and Japanese electrolytic capacitors for high stability. It meets ATX 3.1 standards ensuring modern component support.

Pros

  • High capacitor quality
  • Full modular cabling
  • ATX 3.1 support
  • Silent FDB fan
  • Compact chassis design

Cons

  • Only 4.3 rating
  • Limited warranty

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Its compact chassis fits into smaller cases well. The FDB fan ensures quiet operation under various load conditions.

While build quality is high reliability data is less extensive. The shorter warranty compared to premium units is a consideration.

Recommended for compact builds needing modern power. It is a solid choice for users valuing component quality.

Japanese Electrolytic Capacitors

These capacitors provide high reliability and performance over time. They ensure stable voltage delivery to your PC components.

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10. Thermaltake Toughpower GT – Best Smart Fan Tech

Thermaltake Toughpower GT 750W ATX 3.1 Standard Power Supply; 80 Plus Gold Efficiency; Smart Zero Fan; Native 300W PCIe 5.1 Connector; PS-TPT-0750FNFAGU-3; 5 Year Warranty4.6Editor scoreCheck price on Amazon
Thermaltake Toughpower GT 750W
ATX 3.1 Standard
Smart Zero Fan
Fully Modular Design
Native PCIe 5.1

Thermaltake Toughpower GT features Smart Zero fan tech for low noise under light loads. It meets ATX 3.1 and includes native PCIe 5.1 connectivity.

Pros

  • Smart zero fan tech
  • Fully modular design
  • Native PCIe 5.1
  • 80+ Gold efficiency
  • High amperage single rail

Cons

  • Mid-range pricing
  • Standard design

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Fully modular design improves cable management and airflow. The high amperage single rail delivers stable power for demanding systems.

While it lacks premium extras it offers strong modern features. The fan control helps reduce noise effectively during normal use.

Ideal for balanced builds needing smart fan tech. It is a practical choice for efficient and quiet operation.

Smart Zero Fan Technology

This technology adjusts fan speed based on thermal needs. It minimizes noise during light loads while maintaining cooling under pressure.

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Buying Guide – How to Choose the Best 700W ATX Power Supply

Choosing a power supply involves considering efficiency, protection, and modern standards. This guide outlines the key factors to evaluate for a reliable build.

Efficiency Rating

Efficiency ratings like 80+ Bronze or Gold indicate how well the PSU converts AC to DC power. Higher ratings mean less energy wasted as heat and lower electricity costs over time.

Look for at least 80+ Bronze but aim for Gold if possible for better efficiency and reliability.

ATX and PCIe Standards

Newer ATX standards such as ATX 3.1 support higher power excursions from modern GPUs. Ensure your PSU matches these standards for compatibility.

Prioritize units with native 12V-2×6 connectors for future proofing.

Modularity

Fully modular PSUs allow you to connect only needed cables improving airflow and aesthetics. Non-modular units have fixed cables which may clutter the case.

Choose fully modular for better cable management and flexibility.

Protection Features

Essential protections include OCP OVP OPP UVP and SCP to safeguard components from power fluctuations. Always check the specific protection suite listed.

Ensure comprehensive protection coverage for system safety.

Warranty Length

Warranty terms range from 3 to 10 years indicating expected lifespan. Longer warranties suggest higher quality internal components and reliability.

Look for at least a 5 year warranty for long term use.

Fan Noise and Cooling

Quality fans like rifle bearing or FDB ensure quieter operation. Some units feature semi-passive modes that stop fans at low loads.

Prioritize noise reduction if quiet operation is a priority.

Form Factor and Size

Ensure the PSU fits your case dimensions especially with compact builds. Standard ATX units measure 150mm wide and 140mm deep usually.

Check case clearance before purchasing to avoid fit issues.

Rail Configuration

Single +12V rails offer flexibility for power delivery to multiple components. Multiple rails provide protection but may limit load capacity.

Select based on your GPU and CPU power requirements.

How to Use and Care for Your 700W ATX Power Supply

Install the PSU in your case ensuring screws are tight and the fan faces proper airflow direction. Connect the 24pin and CPU cables securely to the motherboard.

Regularly clean dust from vents using compressed air to maintain cooling efficiency. Keep the case open only if needed to prevent overheating.

Avoid overloading the unit beyond its rated capacity to protect components. Periodically check cables for wear or looseness to ensure safe operation.

Frequently Asked Questions

Is 700W enough for modern GPUs?

A 700W PSU is typically sufficient for mid-range GPUs like the RTX 3060 or RX 6700 XT. High-end cards may require 750W or more for stability.

What is the difference between ATX 3.0 and 3.1?

ATX 3.1 builds on 3.0 with improved transient power handling and standard 12V-2×6 connectors. It offers better stability for new GPUs.

Do I need a modular PSU for this wattage?

Modularity is optional but improves cable management and airflow. Non-modular units are cheaper but may clutter your build.

How do I check if a PSU is reliable?

Look for efficiency ratings like 80+ Gold or Bronze and robust protection suites. Also check warranty length and user reviews for consistency.

Can I use an adapter for 12V-2×6 cables?

Adapters exist but native connectors are safer for high power loads. Using native cables reduces heat and connection issues.

What protections should I look for in a PSU?

Ensure the unit includes OCP OVP OPP UVP and SCP protections. These prevent damage from voltage spikes and power overloads.

Final Thoughts on Choosing the Best 700W ATX Power Supply

Our top picks cover budget to premium needs including the Smart W3 Series MSI MAG A750GL and be quiet! Pure Power 13 M.

Prioritize modern standards like ATX 3.1 and efficiency ratings for long term value. Safety features and warranty also matter greatly.

Always check current prices and availability before purchasing since these fluctuate regularly online.