What are the best gaming power supplies for overclocking?
This page compares 6 gaming power supplies with verified specifications and prices. Top options include CORSAIR RMx Shift Series RM1200x Shift CP-9020254-NA, Seasonic Prime TX-1600, Super Flower Leadex VIII Platinum PRO 1200W SF-1200F14SP. Prices range from £141 to £374. 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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CORSAIR RMx Shift Series RM1200x Shift CP-9020254-NA
US
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£219.70 ≈ | 1200W | 80 PLUS Gold | ✓ | 8 | — | ✗ |
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This 1200W ATX power supply is fully modular, 80 PLUS Gold certified, and includes eight PCIe connectors for high-end graphics cards. Its side-mounted modular connections and Zero RPM fan mode suit powerful gaming PCs with compatible cases. ★ Ideal forIt suits overclocking-focused gaming PCs because its 1200W capacity, strong 100A 12V rail, fully modular design, eight PCIe connectors, and Zero RPM fan mode support demanding components and quieter operation.
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Seasonic Prime TX-1600
US
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£373.87 ≈ | 1600 W | 80 PLUS Titanium, 94% at 50% load | ✓ | — | Below 0.5% | ✗ |
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The Seasonic Prime TX-1600 is a fully modular 1600 W power supply with 80 PLUS Titanium efficiency and very tight voltage regulation below 0.5%. Its high output and ATX 3.0 and PCIe 5.0 support suit demanding gaming PCs, workstations, and systems with high-end graphics cards. ★ Ideal forIt suits overclocking-focused gaming systems because its 1600 W capacity, 80 PLUS Titanium efficiency, hybrid fan control, and below 0.5% voltage regulation provide substantial power headroom and stable delivery under heavy loads.
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Super Flower Leadex VIII Platinum PRO 1200W SF-1200F14SP
US
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£158.02 ≈ | 1200W | Cybenetics Platinum | ✓ | 5 | — | ✗ |
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This 1200W fully modular power supply uses Cybenetics Platinum efficiency, ATX 3.1 support, and a native 12V-2x6 connector for modern high-end graphics cards. Its compact 125mm design and ECO fan mode suit powerful gaming PCs and workstations where efficient, quiet operation and easy cable management matter. ★ Ideal forIt suits overclocking-focused gaming systems because its 1200W capacity, single 12V rail, ATX 3.1 transient-power support, Platinum efficiency, and fully modular design provide substantial headroom for an overclocked CPU and high-end GPU.
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Super Flower Leadex VII XP 1200W SF-1200F14XP WH
US
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£140.55 ≈ | 1200W | 80 PLUS Platinum | ✓ | 5 | ±0.5% | ✗ |
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This 1200W fully modular power supply has 80 PLUS Platinum efficiency, ATX 3.1 compatibility, and native 12V-2x6 connectivity for modern high-end graphics cards. Its 140mm fluid dynamic bearing fan includes a semi-passive ECO mode, making it suitable for powerful gaming and workstation systems. ★ Ideal forIt suits overclocking-focused gaming systems because its 1200W capacity, ±0.5% voltage regulation, single high-power 12V rail, Platinum efficiency, and ATX 3.1 transient-power support provide stable headroom for an overclocked CPU and GPU.
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ASUS ROG Strix 1000W Platinum White Edition ROG-STRIX-1000P-GAMING-WHITE-E
US
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£207.12 ≈ | 1000W | 80 PLUS Platinum | ✓ | 4 x 6+2-pin PCIe and 1 x 16-pin PCIe 5.1 12V-2x6 | GPU-FIRST intelligent voltage stabilizer | ✓ |
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This fully modular 1000W power supply has 80 PLUS Platinum efficiency, ATX 3.1 support, and a native 12V-2x6 connector for modern graphics cards. Its semi-passive 0dB mode, GaN MOSFETs, and GPU-FIRST voltage stabilizer suit high-end gaming PCs and demanding white-themed builds. ★ Ideal forIt suits overclocking-focused gaming systems with 1000W capacity, Platinum efficiency, ATX 3.1 regulation, and a GPU-FIRST voltage stabilizer designed to improve graphics-card voltage stability during demanding loads.
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be quiet! Dark Power 13 1000W BN661
US
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£184.93 ≈ | 1000W | 80 PLUS Titanium, up to 95.2% | ✓ | 4 PCIe 6+2 pin and 1 PCIe 12+4 pin | Active rectifier and full bridge LLC technology | ✗ |
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The be quiet! Dark Power 13 1000W is a fully modular, 80 PLUS Titanium power supply with 1000W of continuous output and support for modern PCIe graphics cards. Its Silent Wings fan, four 12V rails, overclocking key, and advanced topology suit high-end gaming PCs that need efficient and stable power. ★ Ideal forIt suits overclocking-focused gaming systems because it provides 1000W, four switchable 12V rails, an overclocking key for single-rail operation, 95.2% Titanium efficiency, and four PCIe 6+2 pin connectors plus a 12+4 pin connector.
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