Corsair SF750 (2024) ATX v3.1 PSU Review

Epilogue

With this review, I finish evaluating Corsair’s new SF series of SFX PSUs made by Great Wall, a Chinese manufacturer and one of the largest ones. Corsair didn’t rush out to release these products in the shortest possible period but took its time till performance and operation noise were at the expected levels. How do I know that? I have good sources. If you need increased power levels and don’t mind the increased noise at full load, you will go for the SF1000. If you want a more balanced solution, the SF850 is the ideal choice, while if your power needs are not increased but you still want something that can cope with up to 1500W power spikes, the SF750 fits the bill.

• Corsair SF850 ATX v3.1 PSU Review
• Corsair SF1000 ATX v3.1 PSU Review

Since we are talking about SFX products, I should emphasize that you should not take the ATX standards for comparison purposes. Some discussions on Reddit have come to my attention concerning the over 30 dBA average noise output of the SF1000. When a tiny SFX platform, whose modular connectors do not protrude from the chassis to save space, which is cheating in my book, has to deliver 1000W of load, you should not expect it to remain silent and, at the same time, reliable. Only if it achieved >95% average efficiency, hence it was Diamond in the Cybenetics scale, and its thermal loads were minimal, should a highly relaxed fan speed profile be acceptable and wouldn’t jeopardize the product’s reliability through time. Even with Cybenetics Diamond efficiency, a level that no manufacturer has achieved yet, the operating conditions would significantly affect the average noise output. Lastly, when the PSU has to deliver 1000W of power, the CPU and GPU cooling systems will have a tough time coping with the thermal loads, which will most likely produce more noise than the PSU’s fan. So we must be careful and, above all, realistic regarding hardware demands. Suppose I ask for lower and lower noise output without considering the engineering limits. In that case, most PSUs will likely fail because of the increased operating temperatures.

As I wrote in the other SF model reviews, I don’t have any price information yet from Corsair, but I hope they are realistically prized so more users can benefit from their increased performance levels.

With the new SF series, Corsair marks its independence from the so-far powerful 80 PLUS, which insists on increasing its fees while using a vastly outdated and easy-to-cheat methodology. According to Corsair’s PSU PM, only the Cybenetics ratings will be utilized from now on. These ratings use the average efficiency and noise readings from at least 1450 different load combinations, from minimal to full load, and other data to tax the PSUs to the corresponding efficiency and noise categories.

Before investing in a new power supply, read my Best ATX v3.x PSUs article to check all alternative PSU offerings. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.