NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - vs Thermaltake Toughpower SFX 750W 80Plus Platinum

Overview of the NZXT C850 Gold Core and Thermaltake Toughpower SFX

The NZXT C850 Gold Core is priced at $99.99, while the Thermaltake Toughpower SFX is listed at $139.99, making the NZXT approximately 17% cheaper. Both power supplies cater to modern PCs, yet they vary significantly in specifications and features. The NZXT focuses on robust performance with a higher wattage, while the Thermaltake emphasizes compact design and high efficiency.

Power Output Comparison

In terms of power output, the NZXT C850 Gold Core provides 850W, which is significantly higher than the Thermaltake Toughpower SFX's 750W. This 100W difference means that the NZXT can support more demanding systems or additional components without compromising stability. If you're building a high-performance gaming rig or a workstation that requires additional power, the NZXT might be the better choice. However, for most standard builds, 750W may suffice, especially with the Toughpower’s high efficiency.

Efficiency Ratings

The NZXT C850 Gold Core boasts an 80 PLUS Gold efficiency rating, while the Thermaltake Toughpower SFX achieves an even higher 80 PLUS Platinum certification. This means the Thermaltake will generally waste less power as heat, translating into lower energy costs over time. Specifically, Platinum-rated units like the Toughpower can achieve efficiencies of 90% or higher under standard load conditions, compared to Gold-rated units, which typically reach around 87%. For users concerned about long-term energy consumption, the Thermaltake is the clear winner.

Build Quality and Component Ratings

Both power supplies are built with high-quality components, but they have distinct features that cater to different user needs. The NZXT C850 utilizes 105°C-rated capacitors, which contribute to its stability and longevity under heavy loads. The Thermaltake Toughpower SFX also claims strict voltage regulation and low ripple noise, with specifications such as less than 30mV ripple noise and a hold-up time of 17ms. This means that both units are designed for reliability, but the NZXT might offer a slight edge in extreme conditions due to its capacitors.

Modular Design

The modular designs of both power supplies allow users to connect only the cables they need, reducing clutter and improving airflow in the case. The NZXT C850 features fully modular, embossed cables, which not only enhance aesthetics but also simplify cable management. The Thermaltake Toughpower SFX is also fully modular with low-profile cables, making it suitable for smaller cases. However, the NZXT’s design might appeal more to users looking for a clean and organized build since its cables are specifically designed for easy routing.

Noise Levels and Cooling

When it comes to noise, the NZXT C850 is particularly impressive, with a Cybenetics noise certification rating of A++ for almost silent operation at less than 15 dBA. This makes it an excellent choice for users who prioritize a quiet computing experience, especially in home or office environments. The Thermaltake Toughpower SFX, while efficient in operation, does not explicitly provide dBA noise levels, but it does feature a 90mm FDB fan designed for quiet performance. For users sensitive to noise, the NZXT may be the more appealing option.

Warranty and Support

Both brands offer solid warranties for their products, but there are slight differences in terms of coverage. The NZXT C850 comes with a 7-year warranty, providing assurance in terms of durability and manufacturer support. The Thermaltake Toughpower SFX also includes a 7-year warranty, which is a standard offering in this power supply segment. Users can feel confident in both products regarding manufacturer support, but it's essential to consider the customer service reputation of each brand when making a decision.

Which should you buy?

Choosing between the NZXT C850 Gold Core and the Thermaltake Toughpower SFX largely depends on your specific needs and budget. If you require higher power output and whisper-quiet operation, the NZXT C850 at $99.99 is an excellent choice. However, if efficiency is your primary concern and you are willing to spend an extra $40 for an 80 PLUS Platinum-rated unit, the Thermaltake Toughpower SFX offers superior energy efficiency. Ultimately, both power supplies are well-engineered and suitable for modern builds, making them worthy contenders in their respective categories.