Well, it came early so I tested it right away. I tested it with same parameters as before. -30 PBO, Grizzly Kryonaut paste, PPC-3000 fan.
These are the results I got (yep, it still throttles):
|Cooler||Absolute Minimum CPU Package Clock||Average CPU Package Clock|
|AXP-100 Full Copper (Exhaust)||4078.4 Mhz||4120 Mhz (went up from 4100 Mhz over time)|
|Big Schuriken 3 (Intake)||4058.8 Mhz||4072 Mhz (went down from 4120 Mhz over time)|
|Big Schuriken 3 (Exhaust)||4087.0 Mhz||4140 Mhz (pretty stable albeit with much higher variation than other 2 configs)|
|AXP-120-X67 (Intake)||4165.7 MHZ||4180 Mhz (mean is stable)|
|AXP-120-X67 (Exhaust)||4178.2 MHZ||4209 Mhz (goes up to 4250 Mhz in a slow sinusoidal pattern)|
I think AXP-120-X67 is definitely an improvement in both cooling and design. A lot of annoying design decisions present in AXP-100 FC and AXP-200 are gone. It's easier to install now but I do hate the new fan brackets, screws were easier to work with. In N-ATX they require you to remove the heatsink to replace or rotate the fan (at least with my ITX mobo). But overall not bad. It also doesn't block the power cable the way Big Schuriken 3 does. The fan is positioned completely flat relative the case, in AXP-100 FC and AXP-200 were kinda sloped. Also AXP-100 FC can only be installed with heat-pipes leading downwards or upwards, whereas AXP-120-X67 can only be installed with heat pipes positioned horizontally. The latter is actually crucial for that vapor chamber mod, as it allows the fluids circulate freely.
Overall, best low profile cooler yet, but only by a margin. Better than Big Schuriken 3 or AXP-100 Full Copper. I wonder if AXP-100 FC could still match it (and beat Big Schuriken 3), if I removed the 92mm to 120mm fan installation bracket that blocks airflow and replaced it with wire braces similar to AXP-120. Just a thought.
If you don't like tinkering, AXP-120 is the way to go.