Cooler Master V750 SFX Gold 750W Fully Modular vs Seasonic CORE GX 650W Power Supply ATX 3.1 PCIe
Updated August 2026 — Cooler Master V750 SFX Gold 750W Fully Modular leads on design and cable quality.
The Cooler Master V750 SFX Gold offers superior performance and features, making it the better choice for high-demand builds, while the Seasonic CORE GX 650W is a more budget-friendly option.
Why Cooler Master V750 SFX Gold 750W Fully Modular is better
Higher Wattage
750W vs 650W
Longer Warranty
10 years vs 7 years
Compact Design
SFX form factor for mini-ITX builds
Why Seasonic CORE GX 650W Power Supply ATX 3.1 PCIe is better
Lower Price
$99.99 vs $161.80
Standard Form Factor
ATX design for broader compatibility
Good Value
Excellent features for the price
Overall score
Specifications
| Spec | Cooler Master V750 SFX Gold 750W Fully Modular | Seasonic CORE GX 650W Power Supply ATX 3.1 PCIe |
|---|---|---|
| Modularity | Fully Modular | Fully Modular |
| Efficiency Rating | 80+ Gold | 80+ Gold |
| Connector Type | ATX 3.1 & PCIe 5.1 | ATX 3.1 & PCIe 5.1 |
| Fan Type | FDB Fan | Standard Fan |
| Cable Design | 90° Cables | Standard Cables |
Dimension comparison
Introduction to Power Supplies
When considering power supplies for your computer build, two strong contenders are the Cooler Master V750 SFX Gold and the Seasonic CORE GX 650W. Both are 80 Plus Gold certified, ensuring high efficiency, but they cater to different needs based on form factor and power capacity. The V750 offers 750W, ideal for high-performance systems, while the CORE GX provides 650W, suitable for less demanding builds.
Pricing Comparison
The Cooler Master V750 SFX Gold is priced at $161.80, while the Seasonic CORE GX 650W is significantly cheaper at $99.99. This makes the Seasonic approximately 38% less expensive than the Cooler Master. The price difference may influence your decision, especially if you are on a budget or building a system that doesn't require the higher wattage of the V750. However, it's essential to weigh the price against the features and performance each unit offers.
Design and Form Factor
The Cooler Master V750 SFX Gold is designed for compact systems, boasting an SFX form factor that is perfect for mini-ITX builds. Its small size does not compromise on performance, providing up to 750W of power. In contrast, the Seasonic CORE GX 650W follows the more standard ATX form factor, making it suitable for a broader range of cases. If space is a constraint in your build, the V750's design gives it a clear advantage.
Efficiency and Performance
Both power supplies are 80 Plus Gold certified, which means they offer about 90% efficiency at typical loads. This certification guarantees that both units will provide effective power transfer, minimizing wasted energy. However, the V750 also features a Fluid Dynamic Bearing (FDB) fan, which enhances cooling performance and reliability. This design could be beneficial for users looking for quieter operation and improved thermal management in their systems.
Cable Management
Cable management is a crucial consideration for building a clean and efficient system. The Cooler Master V750 SFX Gold is fully modular, allowing users to connect only the cables they need, which reduces clutter and improves airflow in mini-ITX cases. The Seasonic CORE GX is also fully modular, providing flexibility in cable management. However, the V750's customized cable lengths are particularly designed for compact builds, which may provide a more tailored solution for users with limited space.
Compatibility with Modern Components
The Cooler Master V750 is equipped with ATX 3.1 and PCIe 5.1 connectors, ensuring compatibility with the latest graphics cards and motherboards. Its 90° durable cables also enhance electrical durability and safety, making it a future-proof choice. The Seasonic CORE GX is also ATX 3.1 and PCIe 5.1 ready, with a native 12V-2x6 connector ideal for modern GPUs. While both are compatible with high-end components, the V750's additional features may provide better performance for cutting-edge builds.
Warranty and Reliability
The Cooler Master V750 SFX Gold comes with a generous 10-year warranty, reflecting the manufacturer's confidence in its product's reliability and longevity. On the other hand, the Seasonic CORE GX offers a 7-year warranty, which is still commendable but shorter than that of the V750. The longer warranty period of the V750 may provide additional peace of mind for users looking to invest in a more robust power supply for their systems.
Which should you buy?
Ultimately, the choice between the Cooler Master V750 SFX Gold and the Seasonic CORE GX 650W comes down to your specific needs and budget. If you require a compact power supply with higher wattage and superior features, the Cooler Master is the better option, albeit at a higher price. However, if you're looking for a cost-effective solution for a standard build, the Seasonic provides excellent value without compromising on essential features. For those prioritizing efficiency, space, and longevity, the Cooler Master V750 SFX Gold may be worth the investment.

