5 Best Be Quiet! ATX 3.1 PC Power Supplies, Compared

Quick picks

The best fit for you

• You want the most efficient unit for enthusiast builds be quiet! Dark Power 13 1000W Titanium It holds an 80 Plus Titanium rating for top-tier efficiency.
• You need maximum wattage for extreme high-end systems be quiet! Straight Power 12 1500W Platinum PSU It provides 1500W of power with Platinum efficiency.
• You prioritize silent operation for high-end gaming be quiet! Power Zone 2 1000W Platinum ATX 3.1 It features Platinum efficiency and is designed for quiet performance.
• You want the best value for high-power builds be quiet! Pure Power 12 M 1200W ATX 3.1 PSU It offers 1200W of power with Gold efficiency.
• You are building a single-GPU gaming PC Be Quiet! Pure Power 12 750W ATX 3.1 PSU It delivers 750W with Gold efficiency for gaming systems.

Our 5 picks

1 Best overall

be quiet! Dark Power 13 1000W Titanium

Best for: high-efficiency enthusiast builds

ATX Version

ATX 3.1 (what this guide is about)

Wattage

1000W

Efficiency Rating

80 PLUS Titanium

PCIe Connector Type

6+2 pin

Warranty

10-Year

Dimensions

6.89 × 5.91 × 3.39 inches

View on Amazon: be quiet! Dark Power 13 1000W Titanium Affiliate link

This is a 1000W ATX 3.1 power supply with 80 PLUS Titanium efficiency. It supports PCIe 5.0 GPUs and features a frameless Silent Wings fan. The unit includes an overclocking key to switch between four 12V rails or one massive 12V rail. It suits users who need high efficiency and flexible power delivery for demanding builds.

Pros

• 80 PLUS Titanium efficiency rating up to 95.2%
• ATX 3.1 standard with full PCIe 5.0 support
• Overclocking key for rail configuration switching
• Frameless Silent Wings fan for quiet operation

Cons

• Titanium rating is not listed for all load ranges
• Lacks visible display or app control in data
• Heavier build due to high-end components

Good fit if

• You need maximum efficiency for high-end systems
• You want flexible 12V rail configurations
• You prioritize quiet operation with a frameless fan

Skip if

• You need a budget-friendly 80 Plus Gold unit
• You prefer a smaller 750W form factor
• You require digital monitoring via app

Verdict: be quiet! Dark Power 13 1000W delivers top-tier efficiency and flexible power delivery for enthusiasts who demand quiet, high-performance operation.

2 Also great

be quiet! Pure Power 12 M 1200W ATX 3.1 PSU

Best for: high-power ATX 3.1 builds

ATX Version

ATX 3.1 (what this guide is about)

Wattage

1200W

Efficiency Rating

80 Plus Gold

Modularity

Fully Modular

PCIe Connector Type

12V-2x6, 12VHPWR, PCIe 6+2

Fan Size

120mm

View on Amazon: be quiet! Pure Power 12 M 1200W ATX 3.1 PSU Affiliate link

The be quiet! Pure Power 12 M 1200W is a fully modular power supply built for high-end systems. It delivers 1200W of continuous power with 80 Plus Gold efficiency, reaching up to 93.0% efficiency to reduce heat and waste. It supports ATX 3.1 and PCIe 5.1 standards, featuring a 12V-2x6 connector for next-gen GPUs. The unit uses a 120mm fan for quiet operation and handles transient spikes up to 2000W, making it suitable for demanding gaming or workstation builds.

Pros

• 1200W continuous power output
• 80 Plus Gold efficiency rating
• ATX 3.1 and PCIe 5.1 support
• Fully modular cable design
• Handles 2000W transient spikes

Cons

• 120mm fan is smaller than the 135mm or 140mm fans in higher-tier models
• 80 Plus Gold efficiency is lower than the Platinum or Titanium ratings of other options
• Dual 12V rails may require more careful load balancing than a single 12V rail

Good fit if

• You need 1200W of power for a high-end GPU
• You want fully modular cables for clean cable management
• You prioritize 80 Plus Gold efficiency and quiet operation

Skip if

• You require the highest Platinum or Titanium efficiency ratings
• You prefer a larger 135mm or 140mm fan for even quieter operation
• You need a single 12V rail for simpler load balancing

Verdict: be quiet! Pure Power 12 M 1200W offers robust 1200W power and ATX 3.1 compatibility for users building powerful gaming or workstation PCs who value efficiency and modular cabling.

3 Best premium

be quiet! Straight Power 12 1500W Platinum PSU

Best for: Extreme high-end builds needing 1500W

ATX Version

ATX 3.1 (what this guide is about)

Wattage

1500W

Efficiency Rating

80 PLUS Platinum

Modularity

Fully Modular

PCIe Connector Type

12V-2x6, 12VHPWR, PCIe 6+2-pin

Fan Size

135mm

View on Amazon: be quiet! Straight Power 12 1500W Platinum PSU Affiliate link

This unit delivers 1500W of continuous power on a single 12V rail. It carries an 80 PLUS Platinum efficiency rating, reaching up to 93.9% efficiency. The design supports ATX 3.1 standards and includes a native 12VHPWR connector for PCIe 5.0 graphics cards. It also provides four PCIe 6+2-pin connectors for current-gen GPUs. This power supply suits users needing maximum headroom for high-end components.

Pros

• 1500W continuous power output on one massive 12V rail
• 80 PLUS Platinum efficiency rating up to 93.9%
• Native 12VHPWR connector for PCIe 5.0 GPUs
• Handles power excursions up to double the rated power
• Standby power drain is below 0.1 watts

Cons

• 1500W capacity is significantly higher than other options on this list
• 80 PLUS Platinum efficiency is lower than the Titanium-rated competitor
• Physical dimensions are 7.09 inches long, which is bulkier than some alternatives

Good fit if

• You need extreme power headroom for future-proofing
• You want a single 12V rail for maximum stability
• You require native PCIe 5.0 support with minimal cables

Skip if

• You prefer a more compact form factor
• You want the highest possible efficiency certification
• You do not need more than 1000W of power

Verdict: be quiet! Straight Power 12 1500W offers massive power density and top-tier efficiency for enthusiasts building extreme systems. It fits users who prioritize raw wattage and single-rail stability over compact size or the absolute highest efficiency tier.

4 Also great

be quiet! Power Zone 2 1000W Platinum ATX 3.1

Best for: High-end gaming and media creation PCs

ATX Version

ATX 3.1 (what this guide is about)

Wattage

1000W

Efficiency Rating

80 PLUS Platinum, Cybenetics Platinum

PCIe Connector Type

12V-2x6, PCIe 6+2-pin

Fan Size

140mm

Warranty

10-Year

View on Amazon: be quiet! Power Zone 2 1000W Platinum ATX 3.1 Affiliate link

The be quiet! Power Zone 2 1000W delivers 1000W of continuous power on a single 12V rail. It supports ATX 3.1 and PCIe 5.1 standards, featuring a native 12V-2x6 connector. The unit holds 80 PLUS Platinum and Cybenetics Platinum efficiency ratings. A 140mm fan enables semi-passive zero-RPM cooling for quiet operation. It handles transient loads up to double its rated power.

Pros

• 1000W continuous output on a single 12V rail
• ATX 3.1 standard with PCIe 5.1 support
• 80 PLUS Platinum and Cybenetics Platinum efficiency
• Semi-passive zero-RPM cooling mode
• Handles transient loads up to 2000W

Cons

• Semi-modular design requires manual cable connection
• Includes only one 12V-2x6 connector
• Post-ventilation cooldown period of 2-5 minutes

Good fit if

• You need native PCIe 5.1 support for next-gen GPUs
• You want high efficiency for lower power consumption
• You prefer silent operation under low loads

Skip if

• You require a fully modular cable setup
• You need multiple native 12V-2x6 connectors
• You prefer zero cooldown time after fan stops

Verdict: The be quiet! Power Zone 2 1000W ATX 3.1 suits builders prioritizing high efficiency and silent operation for high-end systems. It is ideal for users with single next-gen graphics cards who value quiet performance over full modularity.

5 Best budget

Be Quiet! Pure Power 12 750W ATX 3.1 PSU

Best for: single-GPU gaming systems with PCIe 5.1 cards

ATX Version

ATX 3.1 (what this guide is about)

Wattage

750W

Efficiency Rating

80 PLUS Gold

PCIe Connector Type

12V-2x6, PCIe 6+2-pin

Fan Size

120mm

Warranty

10 Year

View on Amazon: Be Quiet! Pure Power 12 750W ATX 3.1 PSU Affiliate link

This 750W ATX 3.1 power supply features 80 PLUS Gold efficiency for reliable operation. It includes a native 12V-2x6 connector for PCIe 5.1 graphics cards alongside three PCIe 6+2-pin connectors. The single 12V rail supports power excursions up to double its rated output. A temperature-controlled 120mm fan ensures quiet performance. It suits gamers building systems with modern GPUs.

Pros

• ATX 3.1 standard with native 12V-2x6 connector
• 80 PLUS Gold efficiency rating up to 92.8%
• Handles power excursions up to double rated power
• Single 12V rail for stable voltage regulation

Cons

• 750W output is lower than competitors reaching 1000W to 1500W
• 120mm fan size is smaller than typical 135mm or 140mm units
• Only one 12V-2x6 connector limits multi-GPU setups

Good fit if

• You need native PCIe 5.1 support for new graphics cards
• You want 80 PLUS Gold efficiency for cooler operation
• You are building a standard gaming PC with one GPU

Skip if

• You require more than 750W for high-end workstations
• You plan to use multiple high-power graphics cards
• You prefer larger 135mm or 140mm fans for silence

Verdict: be quiet! Pure Power 12 750W Gaming PSU delivers solid ATX 3.1 specs for single-GPU gaming builds. It fits users who prioritize efficiency and modern connectors over maximum wattage.

Specifications side by side

How to choose the right one

1. Check efficiency ratings

   You should match the efficiency tier to your power usage. The Dark Power 13 1000W offers Titanium certification for minimal energy loss. This suits users who want maximum efficiency in high-end builds. The Pure Power 12 M 1200W provides Gold certification. This is a practical choice for balanced performance. Higher ratings reduce waste heat and electricity costs. You should verify the specific 80 Plus level listed for your target model to ensure it meets your energy goals.

2. Verify ATX 3.1 support

   All models in this guide support ATX 3.1. This standard ensures compatibility with modern components. It guarantees stable power delivery for next-gen hardware. You should confirm this version to avoid compatibility issues. The Pure Power 12 M 1200W explicitly lists this support. It is ideal for users building powerful gaming or workstation PCs. ATX 3.1 also aids in future-proofing your system. You can rely on this specification for consistent operation.

3. Assess modularity needs

   You should consider cable management based on your case size. The Pure Power 12 M 1200W is fully modular. This allows you to use only the cables you need. It reduces clutter and improves airflow inside your chassis. Other models may have different cable configurations. You should check the modularity type for each unit. Fully modular designs offer the cleanest installation. This feature is valuable for users prioritizing aesthetics and ease of setup.

4. Review PCIe 5.1 specs

   High-end graphics cards require specific power connectors. The Power Zone 2 1000W supports PCIe 5.1. This ensures compatibility with the latest GPU technology. It is ideal for single next-gen graphics cards. You should verify this version if you have a high-end card. The Pure Power 12 750W also targets gaming systems. It fits users who prioritize modern connectors. Checking this spec prevents connection issues with new hardware.

5. Match wattage to your build

   You must select a unit that meets your peak power demands. The Straight Power 12 1500W offers massive power density. It fits users needing extreme wattage for high-end systems. The Dark Power 13 1000W provides robust output for enthusiasts. You should calculate your system's total power draw. Choose a unit with sufficient headroom for stability. The Pure Power 12 750W suits single-GPU gaming builds. Matching wattage ensures reliable performance under load.

Frequently asked questions

See also

• best be quiet ATX PC power supplies
• best be quiet 850W PC power supplies
• be quiet pure wings 3 120mm alternatives
• be quiet silent loop 3 360mm alternatives