Short answer is PH-TC14PE is as good or better than most CLCs.
Most users say AIO when they are really CLC. CLC is a sub-group of AIO. CLCs are factory sealed with no provisions to do anything but use and throw away. AIOs that are not CLC have proper fittings, fill port, usually copper radiator and higher flow rate pump .. basically a low end custom loop but definitely not a CLC.
Do you have PH-TC14PE?
How old is it?
I ask because they have used 3 different fans over the years and now the cooler has 1-piece fins instead of 2-piece fins it used to have. I have both old and new PH-TC14PE and find the new one to be less than 2c, maybe 3c as good on extreme overclocks (200+w) as old one .. depending on how good the solder joints are on original PH-TC14PEs'. Most were good but a few were not and unless fins came loose it's hard to know how good they are without some serious testing on 200+ watt CPU overclocks and high performance fans.
PH-TC14PE is about the same performance as most AIOs that are CLC and quieter doing it. When compared at full speed / high noise levels CLCs give lower temps, but we are talking twice as loud or louder doing it. Put a pair of hi-performance fans on that make similar noise to CLCs' fans and top tier air is clear winner .. all assuming case airflow is setup so cooler is getting air only a few degrees warmer than room. Most stock case fans even in very good cases are almost worthless. Phanteks and be quiet! cases come with good fans. Fractal Design are nice cases but their fans are garbage.
Even the best AIOs are only a degree or 2 better than top tier air like PH-TC14PE is.
Silver Arrow SB-E, Silver Arrow SB-E Extreme vs H100. Silver Arrow SB-E is same performance as new Silver Arrow IB-E, PH-TC14PE, NH-D14, NH-D15, etc. Silver Arrow SB-E Extreme has high performance TY-143 fans needing similar case fans supplying it with needed cool airflow.
I7
[email protected] Temperature in Delta
Cooler . . . . . . . . . Delta . RPM . RPM . dB(A) . Fans
H100 . . . . . . . . . . 41c . . 2500. . . . . . . 55 . . . . 2x
SA SB-E. . . . . . . . 42c . . 1000 & 1300. 38 . . . . TY-150 & TY-141
SA SB-E Extreme . 34c . . 2500 . . . . . . 56 . . . . 2x TY-143
You can see H100 is 1c cooler than Silver Arrow SB-E but H100 makes more than 3 times the noise doing it
Siver Arrow SB-E Extreme is 7c cooler with fans making similar amount of noise as H100 does.
PC-Cooling video review above data came from:
https://www.youtube.com/watch?v=q6xrsuPwDbo