The Noctua NF-F12 is the best noise/performance fan.
The Corsair SP120 High Performance Edition is the best performance/price fan.
The Corsair SP120 Quiet Edition is the best noise/price fan.
The Corsair SP120 High Performance Edition is quiet below 9V. So if you set it to 7V, it can beat the other two fans in performance while staying quiet.
According too one review the SP120 High Performance beat the NF-F12 in performance. But was louder.
Also looking at another review someone showed the NF-F12 being very loud fans. Louder then AP-15.
How would I reduce the voltage on the SP120 PE.
Is there a low noise adaptor included? Which I think brings the voltages down?
I'm stuck between the NF-F12 and SP120 PE.
The SP120 PE Are about £7 cheaper. But louder unless voltage is reduced.
The NF-F12 right now seems too be most people's favourite. But the most expensive, and quietest tbh.
You can use a fan controller to adjust voltages. Ultimately, it'll be your choice. It really depends if you really need your fans running so fast. I run mine on 5V and 7V and have no had issues.
From my point of view. I thought fan controllers can not adjust voltages but only RPM.
I have a fan controller which i took off my cousins old build.
It is a Aerocool Touch 2000.
What sort of performance do you get at 5V against 7V against 9V.
NCIX did a review on various fans in respect to performance/noise ratio at 7V and 12V a while back. But it boils down to this:
5V: Corsair SP120 HPE is about equal to the Noctua NF-F12. Both are quiet.
7V: Corsair SP120 HPE edges over the Noctua NF-F12 by a bit in performance. HPE is 1-2 dba louder.
12V: Corsair SP120 HPE beats the Noctua NF-F12 in a very convincing way. HPE is much louder.
NCIX also measured airflow to static pressure. The Noctua NF-F12 has a good balance of both. The Corsair SP120 HPE is much better at all levels. The QE is the worst of the three that we're comparing at the moment.
For a radiator fan, you want good static pressure. Get the Corsair SP120 HPE.