Lian Li SP750 V2 Gold vs Thermaltake Toughpower GX2 80+ Gold 600W
Updated August 2026 — Lian Li SP750 V2 Gold leads on modularity and build quality.
The Lian Li SP750 V2 Gold excels in wattage and modularity, while the Thermaltake Toughpower GX2 offers a budget-friendly option with solid performance.
Why Lian Li SP750 V2 Gold is better
Higher Wattage
Lian Li SP750 V2 Gold provides 750 watts compared to 600 watts of Thermaltake Toughpower GX2.
Modular Design
Lian Li SP750 V2 Gold is fully modular, allowing for better cable management.
Longer Warranty
Lian Li SP750 V2 Gold comes with a 10-year warranty versus 5 years for Thermaltake Toughpower GX2.
Why Thermaltake Toughpower GX2 80+ Gold 600W is better
Lower Price
Thermaltake Toughpower GX2 is priced at $59.99, significantly cheaper than Lian Li SP750 V2 Gold.
Larger Fan
Thermaltake Toughpower GX2 features a 120mm fan for potentially better cooling.
SLI/Crossfire Support
Thermaltake Toughpower GX2 supports SLI and Crossfire configurations.
Overall score
Specifications
| Spec | Lian Li SP750 V2 Gold | Thermaltake Toughpower GX2 80+ Gold 600W |
|---|---|---|
| Efficiency Rating | 80+ Gold | 80+ Gold |
| Cooling Type | FDB Fan | Dynamic Bearing Fan |
| Modular | Fully Modular | Non-Modular |
| Compatibility | ATX 3.1 | SLI/Crossfire |
| Noise Level | Low | Low |
Dimension comparison
Overview of Lian Li SP750 V2 Gold and Thermaltake Toughpower GX2
The Lian Li SP750 V2 Gold is priced at $124.99, while the Thermaltake Toughpower GX2 is significantly cheaper at $59.99, making it about 52% less expensive. While both power supplies are built for performance, their features and certifications cater to different user needs. The Lian Li SP750 V2 Gold boasts a 750-watt capacity, while the Thermaltake Toughpower GX2 provides 600 watts, which could impact users with high-performance graphics cards or multiple components. This comparison will delve into the unique qualities of each product.
Power Efficiency Ratings
Power efficiency is a critical factor for any power supply, and both units are certified with the 80+ Gold rating. The Lian Li SP750 V2 Gold supports up to 90% efficiency, which ensures lower electricity costs and less heat generation. In contrast, the Thermaltake Toughpower GX2 also meets the 80+ Gold standard but does not specify a maximum efficiency figure. The consistent efficiency ratings suggest that both power supplies are designed to deliver reliable and stable performance, making them suitable for high-demand systems.
Modular Design
The modularity of a power supply can greatly influence cable management and airflow within a PC build. The Lian Li SP750 V2 Gold features a fully modular design, allowing users to connect only the cables they need, which helps reduce clutter and improve airflow. On the other hand, the Thermaltake Toughpower GX2 comes with non-modular connectors, meaning users must manage all included cables regardless of whether they are needed. This difference in design could make the Lian Li more appealing for builders prioritizing aesthetics and efficient airflow.
Cooling Solutions
Cooling is essential for maintaining optimal performance, especially under heavy loads. The Lian Li SP750 V2 Gold includes a premium 92mm Fluid Dynamic Bearing (FDB) fan that ensures quiet operation while effectively dissipating heat. Conversely, the Thermaltake Toughpower GX2 is equipped with a larger 120mm dynamic bearing fan, which offers superior cooling performance. While both fans are designed for quiet operation, the larger fan in the Toughpower GX2 may provide better airflow, making it a solid choice for users with high-performance builds.
Warranty and Reliability
Warranty length can be an indicator of a manufacturer's confidence in their product’s reliability. The Lian Li SP750 V2 Gold comes with an impressive 10-year warranty, reflecting its durability and the manufacturer's commitment to quality. In contrast, the Thermaltake Toughpower GX2 has a more modest 5-year warranty. This difference in coverage may influence buyers who value long-term investment and peace of mind regarding their power supply's longevity.
Compatibility and Connectivity
Compatibility with modern components is crucial for any power supply, especially with the rise of high-performance GPUs. The Lian Li SP750 V2 Gold is designed to be ATX 3.1 certified and compliant with PCIe Gen 5.0 standards, making it future-proof for high-end graphics cards. In contrast, the Thermaltake Toughpower GX2 supports SLI and Crossfire configurations, which is beneficial for users looking to run multiple GPUs. However, its non-modular design might limit flexibility in connecting newer components as they become available.
Performance Under Load
Performance under load is vital for gamers and professionals alike. The Lian Li SP750 V2 Gold, with its 750-watt capacity, provides ample power for demanding applications and multi-GPU setups. The upgraded 5VSB rail enhances its ability to support power-hungry peripherals. Meanwhile, the Thermaltake Toughpower GX2, while providing 600 watts, is built to deliver continuous power with its single +12V rail design. Users who prioritize high wattage for high-performance setups may prefer the Lian Li, but the Thermaltake still offers solid performance for medium-range builds.
Which should you buy?
Choosing between the Lian Li SP750 V2 Gold and the Thermaltake Toughpower GX2 ultimately depends on your specific needs and budget. The Lian Li SP750 V2 Gold offers superior wattage, modular design, and a longer warranty, making it ideal for high-performance builds. However, its price of $124.99 may not fit every budget. On the other hand, the Thermaltake Toughpower GX2, priced at $59.99, provides solid efficiency and performance at a lower cost, making it an excellent option for budget-conscious users. If you require more power and advanced features, the Lian Li SP750 V2 Gold is the way to go. For those looking for value without sacrificing quality, the Thermaltake Toughpower GX2 is a worthy competitor.

