I am not just being a 120 fan boy (pun not intended). At first glance, it seemss obvious to think a bigger fan and a bigger rad will be better.....but.....
120 fans have been around for a lot longer than 140's. There is more engineering, more technology, and more choices in 120 fans.
No doubt the 140's have more potential, but they just aren't there yet.
But consider this. The top scoring 140, the Antec TwoCool scored 19, 21, and 23 for an average of 21.
The top scoring 120, the NB B12-2 scored 20, 20, 23, and 28 for an average score of just below 23 (22.75 to be precise)
This means that the top scoring 140 performed 8% better than the best 120.
But of course it performs better, it's a bigger fan with bigger blades, and probably bigger motor too.
But increasing the fan superficy by 36% while getting 8% increase in performance is really an actual decrease in performance.
So if you want to see real performance increase, you move from a 120.1 to a 120.2. In will increase in size my 100% and will increase your cooling by 100% as well.
But increasing size by 36% will only give you an 8% increase in performance.
Now, those scores, I don't know what they mean. And franckly, if Martin didn't test it, it's untested, period.
I just think that the technology and the r&d are not up to par yet on the 140. At some point, tomorrow, next week, or next decade, but not just now yet.
No question about it an inline car engine has more torque and more efficiency than a V engine. But for years and years, the r&d of the inline was not up to par with the long running popular V engines.
Same here with the 140 fans. The day that 140 fans are 36% more performant than 120's is the day I'll start considering them on par with the 120's.
And frankly, rad size, rad thickness, rad fpi count, and rad design mare a very small part of the cooling performance. The most important factor by far is fresh air movement. And I just don't think 140 fans move that much air....yet.