What are the quietest gaming power supplies on the market?
This page compares 6 quietest gaming power supplies on the markets with verified specifications and prices. Top options include be quiet! Pure Power 13 M 850W, Corsair RM1000x, Seasonic FOCUS GX-750 ATX 3.1. Prices range from £82 to £3,113,846. All data is sourced from manufacturer documentation and specialist retailers.
| Product ⇅ | Price ⇅ | Wattage (W) ⇅ | Efficiency (%) ⇅ | Modularity ⇅ | Number of PCIe Connectors ⇅ | Voltage Regulation (±) ⇅ | Fanless ⇅ |
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be quiet! Pure Power 13 M 850W
US
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£81.50 ≈ | 850W | 80 PLUS Gold up to 94.4% | ✓ | 5 | LLC technology | ✗ |
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The be quiet! Pure Power 13 M 850W is a fully modular 850W power supply with 80 PLUS Gold efficiency, ATX 3.1 support, and native PCIe 5.1 connectivity. Its semi-passive 120mm fan stops at low loads, making it well suited to powerful gaming PCs and media-creation systems where low noise matters. ★ Ideal forIt suits quiet gaming builds because its semi-passive zero-RPM cooling, 10.60-10.65 dB(A) Cybenetics A++ noise rating, and up to 94.4% efficiency reduce fan noise and heat while supporting modern GPUs. |
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Corsair RM1000x
US
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£123.83 ≈ | 1000W | Cybenetics Gold | ✓ | 5 | — | ✗ |
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The Corsair RM1000x is a 1000W fully modular ATX 3.1 power supply with Cybenetics Gold efficiency and support for PCIe 5.1 through a native 12V-2x6 connector. Its 140mm fluid dynamic bearing fan and Zero RPM mode make it suitable for high-performance gaming PCs where quiet operation matters. ★ Ideal forIt suits quiet gaming PCs because its 140mm fluid dynamic bearing fan uses Zero RPM mode to stop completely at low to medium loads, while Cybenetics Gold efficiency helps reduce heat and fan noise. |
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Seasonic FOCUS GX-750 ATX 3.1
US
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£103.80 ≈ | 750 W | 80 PLUS Gold; 90% at 50% system load | ✓ | 2 x 6+2-pin PCIe; 1 x 12V-2x6 | ±3% | ✓ |
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This 750 W ATX 3.1 power supply is fully modular, 80 PLUS Gold certified, and includes two 6+2-pin PCIe connectors plus one 12V-2x6 connector for modern graphics cards. Its hybrid fan control and 135 mm fluid dynamic bearing fan make it suitable for quiet gaming PCs and high-performance mainstream systems. ★ Ideal forIt suits quiet gaming builds because it uses hybrid fan control with a 135 mm fluid dynamic bearing fan, reducing fan operation during lighter loads while delivering 750 W of efficient Gold-rated power.
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Seasonic VERTEX GX-1200
US
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£3113846.35 ≈ | 1200 W | 80 PLUS Gold | ✓ | 4 | ±3% | ✗ |
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The Seasonic VERTEX GX-1200 is a 1200 W, fully modular power supply with 80 PLUS Gold efficiency and ATX 3.1 and PCIe 5.1 compatibility. Its 135 mm fluid dynamic bearing fan and hybrid silent fan control suit powerful gaming PCs with high-end graphics cards and processors. ★ Ideal forIt suits quiet gaming builds through its hybrid fan control and fanless mode at low loads, while its 135 mm fluid dynamic bearing fan, Cybenetics A- noise rating, and fully modular design help reduce operating noise. |
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Seasonic PRIME Fanless TX-700
US
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£170.55 ≈ | 700 W | 80 PLUS Titanium | ✓ | 4 | Under 0.5% | ✓ |
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The Seasonic PRIME Fanless TX-700 is a 700 W, fully modular power supply with 80 PLUS Titanium efficiency and completely passive cooling. It suits high-performance gaming PCs where silent operation, efficient power delivery, and multiple graphics-card connectors are important. ★ Ideal forIt is specifically suited to quiet gaming PCs because its true fanless design eliminates PSU fan noise, while its 700 W output, 80 PLUS Titanium efficiency, and four PCIe connectors support powerful gaming hardware. |
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ASUS ROG Loki SFX-L 1200W
US
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£239.52 ≈ | 1200W | 80 PLUS Titanium, up to 94% | ✓ | 4 x 8-pin PCIe and 2 x 16-pin PCIe | Tighter voltage and current regulation | ✗ |
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The ASUS ROG Loki SFX-L 1200W is a fully modular, 80 PLUS Titanium power supply designed for compact, high-performance PCs. Its 1200W output, ATX 3.1 compatibility, PCIe 16-pin connectors, 0dB operation, and SFX-L format suit demanding small-form-factor gaming builds. ★ Ideal forIt suits quiet gaming PCs because its 120mm fan stops at loads of 40% or below, while ROG heatsinks, dual ball bearings, 80 PLUS Titanium efficiency, and Lambda Standard ++ certification help reduce heat and noise.
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