Zalman GigaMax 700W
4.4Editor score
80 Plus Bronze Certified
5 Year Warranty Included
Silent 120mm Fan
In this guide
Choosing the right power supply is critical for system stability. A 700W ATX Power Supply offers enough headroom for mid-range gaming and workstation builds without overspending on excess wattage.
We evaluated ten real products based on efficiency ratings, build quality, and protection features. Our list covers various price points from budget-friendly options to premium gold-certified units.
Each pick highlights specific strengths like modular cabling or silent fans. Prices and availability change frequently so check current listings before making your final purchase decision today.
Top 3 Picks for Best 700W ATX Power Supply
ASRock PRO 750G
4.6Editor score
ATX 3.1 Compliant
Native 12V-2×6
90 Percent Efficiency
be quiet! Pure Power 13 M
4.6Editor score
Zero RPM Cooling Mode
Fully Modular Design
94.3 Percent Efficiency
Top 10 Best 700W ATX Power Supply in 2026 Compared
This side by side comparison outlines key specifications for each unit. Use this table to quickly find the right wattage and feature set for your specific build needs.
ProductsSpecificationsEditor scorePrice
Best Budget
Zalman GigaMax 700W
80 Plus Bronze
Active PFC System
105C Capacitors
5 Year Warranty
4.4Editor score
Editor's Choice
Smart W3 Series 700W
ATX v3.1 Spec
DC to DC Design
80 Percent Efficiency
5 Year Warranty
4.3Editor score
Best Premium
700W ATX Non Modular
Non Modular Cables
Auto Thermal Fan
Global Voltage Switch
Basic Protections
4.2Editor score
MSI MAG A750GL
80 Plus Gold
Fully Modular
ATX 3.1 Ready
10 Year Warranty
4.6Editor score
CORSAIR RM750e
ATX 3.1 Certified
Modular Cabling
Rifle Bearing Fan
Modern Standby
4.6Editor score
ASRock PRO 750G
80 Plus Gold
12V-2×6 Connector
Low Noise Fan
3 Year Warranty
4.6Editor score
Thermaltake Toughpower GX1
80 Plus Gold
Non Modular Design
Single 12V Rail
5 Year Warranty
4.6Editor score
be quiet! Pure Power 13 M
80 Plus Gold
Fully Modular
Zero RPM Fan
2x Transient Power
4.6Editor score
Rosewill VMG 750W
Full Modular
Japanese Capacitors
140x150mm Size
5 Year Warranty
4.3Editor score
Thermaltake Toughpower GT
80 Plus Gold
Smart Zero Fan
Fully Modular
5 Year Warranty
4.6Editor score
1. Zalman GigaMax 700W – Best Budget Option
Zalman GigaMax 700W
80 Plus Bronze
Active PFC
105C Capacitors
5 Year Warranty
The Zalman GigaMax 700W is a solid entry level unit for budget conscious builders seeking reliable power. It holds a 4.4 rating from verified buyers who appreciate its stability and cost effective design.
Pros
- Affordable price point
- All black cables included
- Reliable 105C capacitors
- 5 Year Warranty included
- Low noise operation
Cons
- Non modular cable design
- Basic protection suite
We may earn a commission when you buy through this link, at no additional cost to you.
Certified 80 Plus Bronze ensures efficiency up to 87 percent reducing heat and power waste. The active PFC system maintains a 99 percent power factor for consistent energy output across varying loads.
While it lacks modular cables the sleeved connectors aid cable management. The 105C capacitors ensure stability even under high voltage conditions which is a great value feature at this price.
This PSU suits users needing a dependable power source for office PCs or entry level gaming rigs. The full protection suite and five year warranty add peace of mind for daily use.
Efficiency and Cost Savings
80 Plus Bronze certification means lower electricity bills over time compared to non certified units.
Thermal Stability
High temperature rated capacitors help the unit endure heat without degrading performance over years.
We may earn a commission when you buy through this link, at no additional cost to you.
2. Smart W3 Series 700W – Future Ready ATX v3.1
Smart W3 Series 700W
ATX v3.1 Spec
DC to DC Design
80 Percent Efficiency
FDB Fan
The Smart W3 Series 700W supports the newer ATX v3.1 specification making it a forward looking choice. With a 4.3 rating users note its compatibility with modern standards at a competitive price.
Pros
- Intel ATX v3.1 compatible
- DC to DC rails
- Low profile flat cables
- 5 Year warranty coverage
- FDB cooling fan
Cons
- Limited connector count
- Basic build quality
We may earn a commission when you buy through this link, at no additional cost to you.
Full compatibility with Intel ATX v3.1 ensures your system handles new CPU and GPU power requirements smoothly. The DC to DC high amperage +12V rail design provides stable power delivery for sensitive components.
Its low profile flat black cables improve airflow inside the case. The 120mm FDB fan runs quietly while providing adequate cooling for steady operation under typical gaming loads.
This unit fits builders wanting future proofing without breaking the bank. The industrial grade protection and five year warranty offer reassurance against unexpected power surges or faults.
ATX v3.1 Compliance
Meeting ATX v3.1 means better transient load handling for next gen hardware.
Power Rail Stability
DC to DC design isolates the 12V rail for consistent voltage during peak loads.
We may earn a commission when you buy through this link, at no additional cost to you.
3. 700W ATX Non Modular – Basic Utility Choice
700W ATX Non Modular
Non Modular Design
Auto Thermal Fan
Global Voltage Switch
Split Connectors
This basic 700W ATX Power Supply offers essential connectors for legacy and modern drives. It carries a 4.2 rating and appeals to users needing a simple solution for older systems.
Pros
- Very affordable price
- Split 8pin connectors
- Auto thermal fan control
- 115-220V switch
- Includes PATA connectors
Cons
- Cable clutter possible
- Basic efficiency ratings
We may earn a commission when you buy through this link, at no additional cost to you.
The non modular design keeps costs low but may require careful cable routing. Auto thermally controlled fan speeds reduce noise during light tasks while ramping up under heavy loads.
Split 8pin connectors adapt to 6pin and 4pin needs for CPU and GPU. The global voltage switch lets you move the unit between regions without internal adjustments.
Ideal for budget office PCs or retro builds this PSU meets basic safety standards. The heavy duty protections guard against shorts and voltage spikes ensuring reliable daily operation.
Connectivity Flexibility
Split connectors allow use with both modern 8pin and older 6pin devices easily.
Global Voltage Support
The manual switch supports 115V and 220V inputs for international compatibility.
We may earn a commission when you buy through this link, at no additional cost to you.
4. MSI MAG A750GL – Premium Modular ATX 3.1
MSI MAG A750GL
80 Plus Gold
Fully Modular
ATX 3.1 Ready
10 Year Warranty
The MSI MAG A750GL is a high performance unit with full modularity and next gen support. Rated 4.6 by users it stands out for its ATX 3.1 and PCIe 5.1 readiness.
Pros
- Fully modular cabling
- Native 12V-2×6
- ATX 3.1 ready
- 80 Plus Gold efficiency
- 10 Year warranty
Cons
- Higher cost
- Short cables for some cases
We may earn a commission when you buy through this link, at no additional cost to you.
Its 80 Plus Gold certified design delivers energy savings up to 90 percent efficiency. The native dual color 12V-2×6 cable simplifies connections for modern RTX 4000 series GPUs.
Compact design fits tighter chassis while maintaining airflow. The 10 year limited warranty shows confidence in long term reliability and component quality under continuous gaming loads.
Builders seeking top tier modularity and efficiency should consider this unit. It balances premium features with a compact form factor suitable for mid tower cases today.
Next Gen GPU Support
Native 12V-2×6 cable reduces adapter need and improves signal integrity.
Modular Benefits
Connect only necessary cables to reduce clutter and improve case airflow.
We may earn a commission when you buy through this link, at no additional cost to you.
5. CORSAIR RM750e – Silent Modular Unit
CORSAIR RM750e
Fully Modular PSU
ATX 3.1 Certified
Rifle Bearing Fan
Modern Standby
The CORSAIR RM750e delivers quiet reliable power with a modular design. With a 4.6 rating users value its silence and compatibility with the latest ATX 3.1 standards.
Pros
- Low noise operation
- Fully modular cabling
- Intel ATX 3.1 compliant
- 105C rated capacitors
- Modern Standby support
Cons
- High price point
- No RGB options
We may earn a commission when you buy through this link, at no additional cost to you.
A rifle bearing fan with a calculated curve keeps noise low even under full load. The modular cables mean you only connect what you need for cleaner builds.
Intel ATX 3.1 certification ensures support for GPU transient power excursions. 105C rated capacitors provide steady electrical performance and longer life in hot environments.
This PSU is ideal for home theater or silent gaming systems. Modern Standby compatibility improves wake times making it great for work and play setups.
Acoustic Performance
Rifle bearing fan and optimized curves ensure whisper quiet operation at idle.
Transient Power Handling
ATX 3.1 compliance protects against sudden GPU power spikes without shutdown.
We may earn a commission when you buy through this link, at no additional cost to you.
6. ASRock PRO 750G – Best ATX 3.1 Value
ASRock PRO 750G
80 Plus Gold
ATX 3.1 Ready
Native 12V-2×6
3 Year Warranty
ASRock PRO 750G brings next gen features at a great price. With 4.6 ratings it wins top spot for combining gold efficiency with ATX 3.1 standards affordably.
Pros
- High energy efficiency
- Native 12V-2×6
- Competitive pricing
- Low noise fan
- Universal compatibility
Cons
- Shorter warranty
- Non modular design
We may earn a commission when you buy through this link, at no additional cost to you.
The 12V-2×6 connector supports up to 450W delivery for modern GPUs. 80 Plus Gold certification ensures up to 90 percent efficiency reducing waste and heat output.
A low noise fan balances cooling with acoustics for quiet operation. Standard ATX form factor fits most cases though non modular cables require careful management inside.
This unit suits gamers and creators needing future ready power without high costs. The three year warranty protects your investment while keeping overall build budget low.
Efficiency Savings
90 percent efficiency cuts electricity costs compared to bronze rated alternatives.
Connector Readiness
Native 12V-2×6 avoids adapters for next gen RTX graphics cards.
We may earn a commission when you buy through this link, at no additional cost to you.
7. Thermaltake Toughpower GX1 – Reliable Gold Unit
Thermaltake Toughpower GX1
80 Plus Gold
Non Modular
Single 12V Rail
5 Year Warranty
The Thermaltake Toughpower GX1 offers gold efficiency and stable power for multi GPU setups. Its 4.6 rating reflects trust in its single rail design and quiet operation.
Pros
- 80 Plus Gold efficiency
- Single 12V rail
- Silent operation
- C6/C7 State ready
- Industry protections
Cons
- Non modular cables
- High retail price
We may earn a commission when you buy through this link, at no additional cost to you.
Supporting 80 Plus Gold efficiency up to 90 percent reduces energy costs. The single 12V rail design powers high demand components reliably without voltage drops.
Ultra quiet 120mm dynamic bearing fan ensures silent running. C6/C7 state readiness optimizes power for idle periods saving energy without sacrificing performance.
Choose this for builds prioritizing stable high current delivery. While pricey its protections and five year warranty make it a solid long term choice.
Single Rail Benefits
One 12V rail simplifies power distribution for multiple GPU loads.
Idle Optimization
C6/C7 support lowers power draw during system idle times.
We may earn a commission when you buy through this link, at no additional cost to you.
8. be quiet! Pure Power 13 M – Top Tier Silent Gold
be quiet! Pure Power 13 M
Fully Modular
Zero RPM Fan
ATX 3.1
94.3 Percent Efficiency
be quiet! Pure Power 13 M sets a high bar for silence and efficiency. With a 4.6 rating it delivers ATX 3.1 features and zero RPM cooling for quiet builds.
Pros
- Zero RPM cooling
- Native 12V-2×6
- 94.3 percent efficiency
- Fully modular
- LLC topology
Cons
- Higher cost
- Heavy build
We may earn a commission when you buy through this link, at no additional cost to you.
Its 80 PLUS Gold certification reaches up to 94.3 percent efficiency reducing power waste. Zero RPM cooling turns the fan off under low loads for true silence.
Fully modular design with native 12V-2×6 connectors supports next gen GPUs easily. LLC topology provides best in class voltage regulation for stable system performance.
This is the top pick for silent media centers and gaming rigs. The reliability and future proofing justify the premium cost for critical workstations.
Zero RPM Mode
Fan stops at low loads eliminating noise entirely during browsing or light tasks.
Voltage Stability
LLC topology maintains tight voltage regulation under varying workloads.
We may earn a commission when you buy through this link, at no additional cost to you.
9. Rosewill VMG 750W – Japanese Capacitor Gold
Rosewill VMG 750W
Full Modular
Japanese Capacitors
Compact Build
PCIe 5.1
Rosewill VMG 750W offers full modularity and premium capacitors at a fair cost. A 4.3 rating reflects its reliability and attention to quality materials like Japanese caps.
Pros
- Japanese electrolytic caps
- Full modular design
- Compact chassis size
- 5 Year warranty
- 12V-2×6 cable
Cons
- Limited support
- Non standard packaging
We may earn a commission when you buy through this link, at no additional cost to you.
Intel ATX 3.0 and 3.1 ready means support for modern GPU power excursions. Full modular design keeps the case tidy and airflow optimized for better cooling.
Compact 140mm chassis fits smaller cases or dense builds. The dedicated PCIe 5.1 cable delivers 600W direct power ensuring stable performance under load.
Buy this for balanced performance and quality components. The five year warranty and safety shields give confidence for daily workstation or gaming use.
Capacitor Quality
100 percent Japanese electrolytic capacitors extend lifespan and stability.
Compact Design
35 percent smaller chassis aids small form factor builds and airflow.
We may earn a commission when you buy through this link, at no additional cost to you.
10. Thermaltake Toughpower GT – Modern Gold PSU
Thermaltake Toughpower GT
ATX 3.1 Support
Smart Zero Fan
Fully Modular
Single 12V Rail
Thermaltake Toughpower GT supports ATX 3.1 with native connectors for modern GPUs. Its 4.6 rating shows satisfaction with its Smart Zero Fan technology and efficiency.
Pros
- Native 300W PCIe
- Smart Zero Fan
- Fully modular design
- 80 Plus Gold
- High amperage rail
Cons
- Price higher
- Limited color options
We may earn a commission when you buy through this link, at no additional cost to you.
Native PCIe 12V-2×6 connectors deliver 300W directly to next gen graphics cards. 80 Plus Gold efficiency reduces energy consumption and heat output during operation.
Smart Zero Fan minimizes noise during low loads improving silence. Fully modular design aids cable management with flat black cables for clean airflow inside.
This unit is perfect for gaming and workstation needs requiring reliability. The single 12V rail ensures stable power delivery for high end components.
Smart Zero Fan
Fan stops at low loads to reduce noise without thermal risk.
Native Connectors
Direct PCIe connections avoid adapters for safer GPU power.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best 700W ATX Power Supply
Selecting the right unit involves checking certification ratings and features like modularity. This guide explains key factors to consider for a stable PC build.
Efficiency Ratings
Look for 80 Plus Bronze Gold or Platinum certification which ensures the PSU converts power efficiently. Higher ratings mean less wasted energy and heat inside the case.
Always choose at least 80 Plus Bronze to keep your system cool and reduce electricity costs over time.
Modular Design
Modular PSUs let you connect only needed cables reducing clutter and improving airflow. Non modular units come with all cables which can complicate builds.
For cleaner builds prefer fully modular designs especially if you plan to upgrade hardware later.
ATX 3.1 Compliance
Newer ATX 3.1 units support PCIe 5.1 and transient power excursions for modern GPUs. This ensures your PSU handles sudden power spikes safely without shutting down.
Check for ATX 3.1 if you plan to use high end graphics cards like RTX 4000 series.
Warranty Coverage
A longer warranty indicates confidence in component quality and durability. Aim for five years minimum to ensure long term reliability without extra costs.
Prioritize units with five or ten year warranties for peace of mind during daily use.
Connector Types
Ensure the PSU has enough 6+2pin PCI-E and CPU power connectors for your system. Newer units include 12V-2×6 native connectors for next gen cards.
Match connector counts to your GPU and CPU requirements before purchasing to avoid adapters.
Fan and Noise
Noise levels affect system comfort especially in quiet rooms. Look for PSUs with smart fan control or zero RPM modes for silent low load operation.
Select units with larger fans or fluid dynamic bearings for better cooling and lower noise.
Protection Features
Safety features like OVP OCP and OTP protect your components from surges and overheating. These prevent damage during unexpected power events.
Ensure the unit includes multiple protection types to keep your hardware safe from faults.
Form Factor
Most units use standard ATX dimensions which fit most mid tower cases. Smaller builds may need compact designs to fit limited space inside.
Verify case compatibility before buying to ensure the unit fits without blocking cables or airflow.
How to Use and Care for Your 700W ATX Power Supply
Install the PSU in your case with the fan facing down if your case has a bottom vent. Secure it with screws to prevent movement and noise during operation.
Connect the 24pin motherboard and CPU power cables before plugging in any peripherals. Ensure all GPU power cables are firmly seated to avoid power loss.
Clean dust from the PSU fan vents periodically to maintain cooling. Avoid blocking airflow around the case to keep the unit running cool and quiet.
Frequently Asked Questions
Do I need a 700W PSU for mid range builds?
Yes a 700W PSU offers sufficient power for most mid range gaming PCs. It provides headroom for CPU and GPU spikes without overspending on higher wattage units.
Is 80 Plus Gold worth the extra cost?
80 Plus Gold offers better efficiency reducing power waste and heat. If you use your PC often the savings on electricity bills justify the higher price.
What is ATX 3.1 compliance?
ATX 3.1 means the PSU meets newer standards including PCIe 5.1 support. It handles transient power spikes better than older standards protecting modern GPUs.
Can I use a 700W PSU with an RTX 4090?
An RTX 4090 typically needs 850W or more so a 700W unit is insufficient. Check your GPU manufacturer recommendations before selecting a power supply.
Are modular PSUs better than non modular ones?
Modular PSUs reduce cable clutter making builds cleaner and airflow better. Non modular units cost less but can complicate installation in tight spaces.
How long should a PSU last?
Quality PSUs can last five to ten years with proper ventilation. Regular cleaning and avoiding dust buildup help extend the lifespan of the unit.
What happens if the PSU fails?
A failure may cause system shutdowns or component damage if not protected. Choose units with safety protections and a good warranty to reduce risks.
Do I need to buy adapters for new GPUs?
If your PSU has native 12V-2×6 connectors you won't need adapters. Otherwise use the included adapters carefully to avoid connection issues with power.
Final Thoughts on Choosing the Best 700W ATX Power Supply
We reviewed ten top options ranging from budget to premium models to help you decide. Each unit offers unique strengths whether you need silence efficiency or modularity.
Focus on matching your GPU and CPU needs with the right efficiency rating. Modularity and ATX 3.1 features will improve your long term build experience.
Prices vary so check current listings before buying to get the best deal today. Always ensure the PSU fits your case and meets your system power requirements.