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CORSAIR SF1000 Fully Modular Low Noise 80 Plus vs Thermaltake Toughpower GT 850W ATX 3.1 Standard

Updated August 2026 — CORSAIR SF1000 Fully Modular Low Noise 80 Plus wins on output and efficiency, Thermaltake Toughpower GT 850W ATX 3.1 Standard wins on size and weight.

The CORSAIR SF1000 excels in efficiency and compact design, making it ideal for high-performance builds, while the Thermaltake Toughpower GT offers solid performance at a budget-friendly price.

Why CORSAIR SF1000 Fully Modular Low Noise 80 Plus is better

Efficiency

SF1000 has 80 PLUS Platinum rating.

Warranty

SF1000 offers a seven-year warranty.

Cooling

SF1000 features a quieter 92mm fan.

Why Thermaltake Toughpower GT 850W ATX 3.1 Standard is better

Price

Toughpower GT is significantly cheaper.

Size

Toughpower GT is suitable for standard cases.

Availability

Toughpower GT is widely available.

Overall score

CORSAIR SF1000 Fully Modular Low Noise 80 Plus
88
Thermaltake Toughpower GT 850W ATX 3.1 Standard
75

Specifications

SpecCORSAIR SF1000 Fully Modular Low Noise 80 PlusThermaltake Toughpower GT 850W ATX 3.1 Standard
Power Rating1000W850W
Efficiency Rating80 PLUS Platinum80 PLUS Gold
ModularFully ModularFully Modular
Cooling Fan92mm PWM120mm Hydraulic
PCIe SupportPCIe 5.1PCIe 5.1

Dimension comparison

CORSAIR SF1000 Fully Modular Low Noise 80 PlusThermaltake Toughpower GT 850W ATX 3.1 Standard

Design and Form Factor

The CORSAIR SF1000 is designed as an SFX power supply, making it ideal for small form factor builds, while the Thermaltake Toughpower GT is an ATX power supply suitable for standard cases. The compact design of the CORSAIR SF1000 allows it to fit in tighter spaces without compromising on power output, offering massive Platinum-rated performance in a small package. In contrast, the Toughpower GT measures larger and is built for traditional setups, catering to users who have more space to work with.

Power Efficiency

When it comes to power efficiency, the CORSAIR SF1000 boasts an 80 PLUS Platinum rating, which means it delivers at least 90% efficiency at typical loads. This high efficiency translates to reduced energy consumption and heat output, making it an excellent choice for high-performance gaming PCs. On the other hand, the Thermaltake Toughpower GT achieves 80 PLUS Gold efficiency, offering up to 90% efficiency but falling slightly short compared to the Platinum rating of the CORSAIR model. The difference in efficiency may not be substantial for all users, but for those seeking the best performance, every percentage point counts.

Cooling Solutions

The cooling solutions of both power supplies are tailored to their designs. The CORSAIR SF1000 features a 92mm PWM cooling fan that delivers efficient cooling while minimizing noise, thanks to a fluid dynamic bearing and Zero RPM Mode support. This allows for silent operation at low loads, making it a great choice for quiet builds. The Toughpower GT, however, uses a 120mm hydraulic bearing fan equipped with Smart Zero Fan technology, which adjusts the fan speed based on the load to further minimize noise. While both solutions are effective, the SF1000 may appeal more to users prioritizing silent operation.

Modular Design

Modular design is a strong suit for both products, though they differ slightly in execution. The CORSAIR SF1000 is fully modular with Type-5 Micro-Fit PSU connectors, which allow for flexible cabling and tidy cable management, particularly beneficial in small cases. The Thermaltake Toughpower GT is also fully modular and includes low-profile flat black cables that enhance airflow and facilitate easier cable management. Both designs aim to reduce clutter, but the CORSAIR's connectors may offer a slight edge in compact builds.

Warranty and Reliability

When it comes to warranty, the CORSAIR SF1000 offers a seven-year warranty, reflecting the brand's confidence in the product's reliability and durability. This is particularly appealing for users who plan to invest in high-performance components. The Thermaltake Toughpower GT comes with a five-year warranty, which, while respectable, is shorter than that of the CORSAIR model. The longer warranty period of the SF1000 may provide added peace of mind for users concerned about long-term reliability.

Price Comparison

The price difference between the two power supplies is significant. The CORSAIR SF1000 is priced at $189.99, while the Thermaltake Toughpower GT is much more budget-friendly at $95.52. This makes the Toughpower GT about 50% cheaper than the SF1000. For users on a strict budget or those who do not require the high efficiency and compact size of the SF1000, the Toughpower GT provides a solid alternative without breaking the bank.

Performance for Gaming and Workstation Use

Both power supplies are designed to meet the demands of modern gaming and workstation setups. The CORSAIR SF1000 supports the ATX 3.1 power standard and is PCIe 5.1 ready, making it suitable for the latest graphics cards and gaming rigs. The robust power delivery and high efficiency of the SF1000 make it ideal for high-stress applications. On the other hand, the Toughpower GT also meets the ATX 3.1 standards and includes native PCIe connectors, ensuring compatibility with modern GPUs. While both are capable, the SF1000's Platinum efficiency and compact design may give it a performance edge in power-dense situations.

Which should you buy?

Choosing between the CORSAIR SF1000 and the Thermaltake Toughpower GT ultimately depends on your specific needs and budget. If you require a high-efficiency, compact power supply with a longer warranty and superior cooling solutions, the SF1000 is the clear winner at $189.99. However, if you're looking for a more budget-friendly option that still meets modern power specifications, the Toughpower GT at $95.52 offers excellent value. For most users, the decision will hinge on whether the premium features of the CORSAIR justify the price difference.