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PC Fan market, ALL LIES.. LIESSSsss.

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tp4tissue:
Tp4 has combined some test data based on FanPhys youtube channel testing, and Hwbuster's Longwin machine measurements.

The temperatures are from Fanphys,

The raw metrics,  mmAq (pressure) and CFM are from Hwbusters. They're not exact, so Tp4 has to Guestimate, but they're close, since the max difference is <100rpm, usually <50.


In this case, the noise lvl data is not useful, because the measurements only go up to 1600rpm, which is the point where anything higher, you get noticeable tsssssssss noise on ANY fan. with exception of the arctic P12, which is very quiet at very high rpm, but also with unusually low CFM.

The Cu Copper True heatsink is very old, higher density more restrictive heatsink than the newer RevC (aluminum) True.

Some basic conclusions, $ does not buy performance.  And you should probably just buy the  C12.

Tp4 will do some more testing between C12 vs Arctic P12max in his personal collection, later today on a gpu heatsink.

These are a good spread covering the most popular fans in the market.

tp4tissue:
So you see the Tough Fan 12, it has the second highest Pressures, but its performance is abysmal. The only reason this can happen is if its flow characteristic is severely at odds with the heatsink geometry.

It's the best explanation that there's simply no way to correlate CFM or Pressure to performance, because such a huge interaction gap could occur.

The $32 noctua A12, another noise optimized fan, does quite badly, AS BADLY, as the $7 noise optimized P12.

The community is divided, but it's been aware for a long time that Noctua A12s are bad performers, but people are willing to trade that for noise.  Which is when Arctic came in with the Disruptive P12 for $7, which is also low flow, noise optimized.

We know a12 and p12 are both very quiet fans, they also move the least air, less flow, less noise > perform badly.




The T30, kind of makes a case for thicker fans, it's 30mm, But there's also way cheaper 30-38mm fans, Antec/ Server fans. The trouble is Ball bearings on the later which will always chatter.

The case for thicker fans, seems to be more Pressure at lower CFM, but what does that do, it's not simply pushing the air, it's probably just generating more turbulence, and that probably makes the difference when heatsink interaction comes into play. It matters at these non-loud rpms.

Up until 1800 RPM is the most important range, anything after is going to be noisy, so REALISTICALLY, 1800 is the battleground.

tp4tissue:
Stayed up too late playing with computer fans.  Caught a cold.  ughh, mild migraine..

tp4tissue:
Unless this is Birb floo, in which case, Tp4 will probably die.   

Sniping:
with all the supposed fan improvements I pretty much assumed the new wave of fans released in the past year or two would have been groundbreaking, but I feel like it's not really the case. seems like some of the new advances might lead to longer durability and more consistent performance over time, but still haven't come across some magical fan that seems to really set itself apart, which leads me to a similar conclusion to you which is, the cheap options right now are a good idea.

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