Smart W3 Series 80Plus Certified 700W Power Supply
4.3Editor score
Intel ATX v3.1 Spec Compatible
80PLUS Certified Up To 80% Efficiency
5 Year Warranty Included
In this guide
Choosing the right power supply is critical for system stability. A 700W unit offers enough headroom for mid range gaming rigs. Look for efficiency ratings and solid protection circuits.
We analyzed ten models based on specs and user feedback. Our list includes options from budget to premium tiers. Each entry highlights key features like modular cables and fan types.
Every pick shows unique strengths for different needs. Prices can change frequently so check current deals. Use this guide to find a reliable unit that fits your budget.
Top 3 Picks for Best 700W ATX Power Supply
MSI MAG A750GL PCIE5 Fully Modular Compact Gaming 750W Power Supply
4.6Editor score
80 PLUS GOLD Certified
ATX 3.1 & PCIE 5.1 Ready
Fully Modular Design
be quiet! Pure Power 13 M 750W
4.6Editor score
Up To 94.3% Efficiency
Native 12V-2×6 Connector
Semi-Passive Zero-RPM Cooling
Top 10 Best 700W ATX Power Supply in 2026 Compared
This side-by-side comparison covers all ten models to help you decide. We list key specs like efficiency ratings and connector types so you can see differences quickly.
ProductsSpecificationsEditor scorePrice
Best Budget
Zalman GigaMax 700W
80+ Bronze Certified
120mm Silent Fan
Non-Modular Cables
5 Year Warranty
4.4Editor score
Editor's Choice
Smart W3 Series 700W
ATX v3.1 Spec
80PLUS Certified
120mm FDB Fan
5 Year Warranty
4.3Editor score
Best Premium
700W ATX Power Supply Non Modular
Non-Modular Design
Auto-Thermally Controlled Fan
Global Voltage Switch
Heavy-Duty Protections
4.2Editor score
MSI MAG A750GL PCIE5
80+ Gold Certified
ATX 3.1 Ready
Fully Modular
10 Year Warranty
4.6Editor score
CORSAIR RM750e
ATX 3.1 Certified
Fully Modular PSU
120mm Rifle Bearing Fan
10 Year Warranty
4.6Editor score
ASRock PRO 750G
80+ Gold Certified
Native 12V-2×6
Low-Noise Fan
3 Year Warranty
4.6Editor score
Thermaltake Toughpower GX1
80+ Gold Certified
Non Modular
Single 12V Rail
5 Year Warranty
4.6Editor score
be quiet! Pure Power 13 M
Up To 94.3% Eff
ATX 3.1 PSU
Semi-Passive Cooling
Fully Modular
4.6Editor score
Rosewill VMG 750W
80+ Gold Certified
Full Modular
Japanese Capacitors
5 Year Warranty
4.3Editor score
Thermaltake Toughpower GT
ATX 3.1 Standard
80+ Gold Efficient
Smart Zero Fan
5 Year Warranty
4.6Editor score
1. Smart W3 Series 80Plus Certified 700W Power Supply – Best Budget
Smart W3 Series 80Plus Certified 700W Power Supply
ATX v3.1 Spec Compatible
DC to DC Design
Low-Profile Flat Cables
Industrial Grade Protection
The Smart W3 Series offers an entry-level 700W solution. It holds a 4.3 rating and supports the new ATX v3.1 spec. This makes it viable for modern mid-range gaming PCs.
Pros
- Comes with ATX v3.1 spec support
- Affordable price point for 700W
- Includes 5-year warranty coverage
- Flat black cables for tidy builds
- Good efficiency for daily tasks
Cons
- Non-modular design may limit airflow
- Basic fan noise levels
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Its DC to DC design ensures stable power delivery to the GPU. The low-profile flat black cables help with routing in tighter cases. Industrial grade protections guard against voltage spikes.
However it is not fully modular. This means excess cables can clutter the interior. The fan may spin up more often under load compared to premium models.
Buy this if you need a reliable budget unit. It suits builders prioritizing cost over extra features. The warranty adds peace of mind for daily use.
Modern Specification Support
The ATX v3.1 compatibility ensures your PSU handles new power delivery needs. This future proofs your build against upcoming GPU demands.
Efficient Power Delivery
DC to DC design improves stability on the +12V rail. You get cleaner power for components like graphics cards.
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2. Zalman GigaMax 700W – Reliable Entry Level
Zalman GigaMax 700W
80+ Bronze Certified
Active PFC System
Sleeved Cables
105 Degree Capacitors
The Zalman GigaMax delivers steady power for average systems. It achieves a 4.4 rating thanks to its Active PFC system. This feature helps maintain high power factor efficiency.
Pros
- Active PFC ensures stable output
- Clean black sleeved cables
- High quality capacitors
- Quiet 120mm fan operation
- Comprehensive protection suite
Cons
- Bronze efficiency is lower than Gold
- Fixed cables limit flexibility
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Cable management is easier with the sleeved motherboard connector. All black cables match most PC builds nicely. The fan uses a sleeved bearing for smooth airflow.
Still the efficiency tops at 87% under full load. This is less than Gold rated units. Fixed cables may make routing harder in small cases.
Pick this for standard office or gaming PCs. It balances performance and cost well. The protection features ensure safe operation.
Efficient Active PFC
Active PFC maintains a 99% power factor. This reduces wasted energy and heat in your system.
Robust Protection
Safety certifications like TUV and CE are included. Over voltage and short circuit protections protect your hardware.
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3. 700W ATX Power Supply Non Modular – Basic Option
700W ATX Power Supply Non Modular
Non-Modular Design
Auto-Thermally Fan
115/220V Switch
Split 8pin Connectors
This unit serves as a basic power source for simple builds. It has a 4.2 rating and offers a global voltage switch. This is useful for international power environments.
Pros
- Very affordable price point
- Auto-thermally controlled fan
- Global voltage switch included
- Split connectors for flexibility
- Heavy-duty protection suite
Cons
- Non-modular cables can be messy
- Basic build quality
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The fan adjusts speed based on temperature automatically. This helps reduce noise when idle. The 8pin connectors can split for different devices.
Cable management might be challenging due to fixed wires. The plastic build is sturdy but not premium. It lacks efficiency certifications.
Choose this if budget is your main concern. It works for light gaming or office PCs. Ensure your case has space for extra cables.
Global Voltage Support
The red button switch handles 115 to 220V. This makes it versatile for travel or dual-voltage grids.
Thermal Control
The fan spins faster only when needed. This keeps noise low during everyday tasks.
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4. MSI MAG A750GL PCIE5 – Editor's Choice
MSI MAG A750GL PCIE5
80+ Gold Certified
Fully Modular Design
ATX 3.1 Ready
Native 12V-2×6
The MSI MAG A750GL is a top contender for modern rigs. It carries a 4.6 rating and is fully modular. This allows you to connect only necessary cables.
Pros
- Fully modular cables improve airflow
- Gold efficiency reduces power waste
- Native 12V-2×6 connector included
- Excellent 10-year warranty
- Compact form factor
Cons
- 750W rating slightly above 700W
- Mid-range pricing
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Gold certification ensures up to 90% efficiency. It supports ATX 3.1 and PCIe 5.1 standards natively. The 12V-2×6 cable handles new GPU power needs.
The 10-year warranty is a major plus. It guarantees long term reliability. The compact size fits well in standard cases.
Buy this for gaming systems wanting longevity. It balances performance and future proofing. The modular design aids clean builds.
Future Ready Standards
ATX 3.1 support handles power spikes better. This is crucial for high-end graphics cards.
Gold Efficiency
80+ Gold means less heat and lower bills. It runs cooler than Bronze units under load.
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5. CORSAIR RM750e – High End Alternative
CORSAIR RM750e
ATX 3.1 Certified
Fully Modular PSU
120mm Rifle Fan
Modern Standby Ready
The CORSAIR RM750e targets builders wanting quiet operation. It holds a 4.6 rating and meets Intel standards. This ensures compatibility with the latest components.
Pros
- Intel ATX 3.1 certified
- Silent rifle bearing fan
- Fully modular layout
- Modern standby compatible
- 105-degree rated capacitors
Cons
- Price is higher than budget units
- Black color may not suit all cases
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The rifle bearing fan stays quiet even under load. Fully modular cabling helps organize your case. Modern standby support allows fast wake from sleep.
It is priced higher than basic units. The capacitors handle heat well for durability. But it offers premium features.
Use this for media PCs needing low noise. The fan curve is optimized for silence. It suits those valuing quiet over cost.
Silent Operation
The fan curve keeps noise low. This makes it great for media PCs.
Modern Standby
Fast wake times save time daily. Better low load efficiency helps power savings.
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6. ASRock PRO 750G – Mid Range Value
ASRock PRO 750G
80+ Gold Certified
ATX 3.1 Compliant
Low-Noise Fan
Native 12V-2×6
The ASRock PRO 750G balances features and price. It scores 4.6. It has a 12V-2×6 connector for new GPUs. This supports up to 450W for graphics cards.
Pros
- Up to 90% energy efficiency
- Native 12V-2×6 connector
- Low noise fan included
- Standard ATX form factor
- Supports high-end systems
Cons
- 3-year warranty is shorter
- Limited modularity
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Efficiency reaches 90% reducing power waste. The fan is optimized for low-noise operation. It fits most standard cases easily.
Warranty coverage is 3 years. This is less than top units. It is still a solid mid-range option.
Pick this for high-end gaming builds. The native connector helps stability. It suits those needing reliable power.
High Power Delivery
Handles high-end GPUs with ease. The rail supports 450W for graphics.
Quiet Design
Optimized blades move air quietly. This keeps noise down during gaming.
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7. Thermaltake Toughpower GX1 – SLI Ready
Thermaltake Toughpower GX1
80+ Gold Certified
Single +12V Rail
Non Modular
Ultra Quiet Fan
The Thermaltake Toughpower GX1 supports multi GPU builds. It gets a 4.6 rating. The 12V rail is powerful for GPUs. It also runs quietly under load.
Pros
- Gold efficiency up to 90%
- Single +12V rail design
- Supports SLI and Crossfire
- Non modular connectors included
- 5 year warranty coverage
Cons
- Fixed cables limit airflow
- No 12V-2×6 connector
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Gold efficiency helps save energy daily. The fan uses dynamic bearings. It stays silent while moving air. It has industry protections for safety.
Fixed cables make it less flexible. It lacks the new 12V-2×6. This limits next gen GPU support.
Buy this for legacy multi GPU systems. It offers reliable power for older setups. The warranty ensures stability.
Powerful Rail Design
Single rail supports GPU power. This helps with stable performance.
Energy Savings
Gold certification reduces energy waste. It lowers costs over time.
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8. be quiet! Pure Power 13 M – Best Premium
be quiet! Pure Power 13 M
Up To 94.3% Efficiency
Fully Modular
Native 12V-2×6
Zero-RPM Cooling
The be quiet! Pure Power 13 M is a top-tier option. It earns a 4.6 rating. It is fully modular and supports new PCIe standards. The efficiency is impressive.
Pros
- Outstanding 94.3% efficiency
- Semi-passive zero-RPM cooling
- Native 12V-2×6 connector
- Fully modular design
- Perfect for silent systems
Cons
- Premium price point
- Limited color options
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Semi-passive cooling means fan stays off when idle. This creates a silent system. It supports up to double power excursions. It is ideal for media and gaming PCs.
It costs more than budget units. But the build quality is high. The warranty and support are reliable.
Choose this for premium silent builds. The airflow design keeps things quiet. It suits those valuing silence.
Silent Cooling
Fan stops completely under low load. This creates silent operation.
Power Excursion Handling
Handles double power spikes. This protects your components.
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9. Rosewill VMG 750W – Modular Efficiency
Rosewill VMG 750W
80+ Gold Certified
Full Modular Design
Japanese Electrolytic Capacitors
120mm FDB Fan
The Rosewill VMG offers great value for the money. It has a 4.3 rating. It uses Japanese electrolytic capacitors for longevity. It is fully modular.
Pros
- ATX 3.0 and 3.1 Ready
- Full modular cabling
- Japanese electrolytic capacitors
- Low noise FDB fan
- Compact build ready
Cons
- No extra 12V-2×6 connector
- Smaller chassis size
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The compact build fits small cases. The thermal control helps heat dissipation. It supports up to 235% power excursions. It works well for modern PCs.
It is slightly smaller than standard units. The fan is optimized for noise. This suits quiet builds.
Pick this for small factor PCs. It supports new standards well. It is a reliable choice.
Japanese Capacitors
100% Japanese parts ensure durability. This extends PSU life.
Compact Build
Smaller chassis fits SFF cases. It enables flexible integration.
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10. Thermaltake Toughpower GT – Native PCIe 5.1
Thermaltake Toughpower GT
ATX 3.1 Standard
Native 300W Connector
Fully Modular
Single +12V Rail
The Thermaltake Toughpower GT supports modern GPU demands. It scores a 4.6 rating. It offers native support for 5.1. The fan is smart and silent.
Pros
- Compatible with ATX 3.1
- Native PCIe 5.1 connector
- Fully modular flat cables
- High amperage single rail
- Smart Zero Fan Technology
Cons
- Price is mid-range
- Fixed single rail
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Smart Zero Fan adjusts speed automatically. This keeps noise low. The flat cables make routing easier. It fits most cases.
It has a single rail for stable power. The efficiency is solid. It supports 300W for GPUs.
Buy this for gaming PCs needing stability. It handles modern loads well. It is a reliable choice.
Native Connector
Includes 300W native connector. This simplifies GPU power.
Smart Fan
Auto adjusts speed by load. This minimizes noise.
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Buying Guide – How to Choose the Best 700W ATX Power Supply
Selecting the right power supply involves several key factors. This section explains what to look for.
Efficiency Ratings
Efficiency ratings like 80+ Bronze or Gold show how much energy is wasted. Higher ratings mean lower electricity bills and less heat. Look for Gold if you plan long runs.
Choose a rating that matches your usage.
Modular vs Non-Modular
Modular PSUs let you connect only needed cables. This improves airflow and looks cleaner. Non-modular units are cheaper but have fixed cables.
Select modular for cleaner builds.
Warranty Coverage
Warranty length indicates manufacturer confidence. Units with 10-year warranties are built to last. Shorter warranties are common in budget models.
Prioritize longer warranties for peace of mind.
ATX Standards Compatibility
Newer standards like ATX 3.1 support power spikes. These are essential for modern GPUs. Older units may not handle spikes well.
Check for ATX 3.1 compatibility.
Connector Types
Modern GPUs often need 12V-2×6 connectors. Ensure your unit supports this. Older units may need adapters.
Verify connectors before buying.
Fan Noise Levels
Fan types impact noise. FDB or Rifle fans are quiet. Semi-passive fans stop at idle. For silent builds, choose low-noise fans.
Look for silent fan specs.
Protection Features
Safety features like OVP and SCP protect your PC. Ensure the unit has these. They prevent damage from power surges.
Prioritize units with full protection suites.
Power Capacity
700W is good for mid-range systems. If you plan upgrades, 750W offers more headroom. Consider future needs.
Choose capacity for your current and future needs.
How to Use and Care for Your 700W ATX Power Supply
Ensure your unit has enough connectors. Do not force adapters that do not match. This prevents shorts.
Place the PSU in a location with airflow. This helps it cool down efficiently.
Clean dust from the unit every year. Dust traps heat and reduces performance.
Frequently Asked Questions
Is a 700W power supply enough for gaming?
Yes, a 700W supply is enough for most mid-range gaming rigs. It supports cards up to 3070. For higher end cards you may need more.
Do I need an ATX 3.1 power supply?
If you use a modern GPU you need ATX 3.1. This standard handles power spikes better. Older units may not support new features.
What is the difference between modular and non-modular?
Modular units let you choose cables. Non-modular have fixed cables. Modular helps with airflow and looks better.
Are gold rated power supplies worth it?
Gold units save more energy and run cooler. They cost more but are better for longevity. If you use your PC often they are worth it.
How do I check if my PSU is working?
Use a paper clip test or a PSU tester. This checks if the unit can start. It helps identify internal failures quickly.
What should I do if my PSU is noisy?
Check for dust inside the fan. Clean it gently with compressed air. If noise persists the bearing may need replacing.
Can I use an older PSU with a new GPU?
Only if it has enough wattage and connectors. If it lacks a 12V-2×6 connector you may need an adapter. Check your GPU requirements.
Why is my PC shutting down randomly?
This might be a power issue. Your PSU could be failing to deliver power. Test the unit or try a different one.
Final Thoughts on Choosing the Best 700W ATX Power Supply
We reviewed ten models suitable for various needs. The Smart W3 and MSI A750GL offer great value. Be quiet! Pure Power 13 M stands out for noise.
Prioritize efficiency and safety features. A good PSU protects all other components. Make sure it matches your GPU needs.
Prices change often so check current offers before buying. Verify specs to ensure the fit is right for your PC.