AquaComputer Cuplex Kryos XT


Thermal Test Results

This is a new CPU block roundup and with it comes a few changes to data presentation (and obviously what data is presented). First change up is a new table showing all the individual mount data as well as the flowrate spectrum test data.

How to read these tables: start with the blue section, this is the individual mount data and the average of the 5 best mounts is italicized at the bottom. The red section is the tabulation of the 3 flowrate spectrum runs (with 5 settings per run). The averages are italicized on the right of the respective Flowrate/CPU Temperature columns. The purple area is the combination of the blue and red areas and carries over the italicized data to show how the final values at all 5 pumping power settings is determined. Of note, the medium pumping power average value is the average of all nine tests at that setting.


Now that we’ve seen the tabulated data, let’s take a look at some easier-to-read charts! First up are flow vs. temperature, then pumping power vs. temperature, then simple bar charts focusing on the data from the six mounts at medium pumping power.

  • Very High Pumping Power: All three DDC pumps and the D5 are on at full speed–this has a very similar PQ curve to a pair of RD-30s at 20V.
  • High Pumping Power: Two MCP355s with EK V2 tops are on at full speed. The other two pumps are off.
  • Medium Pumping Power: A single D5 with the DetroitThermo top is on at full speed. The other three pumps are off.
  • Low Pumping Power: A single DDC3.25 with Koolance restop is on at 8.5V. The other three pumps are off.
  • Very Low Pumping Power: The D5 with DetroitThermo top is on at minimum speed–setting 1. The other three pumps are off.

Well we have a new thermal performance leader! The kryos XT with the thicker o-ring edged out the champion from Roundup #2, the EK Supreme HF P1, and is pretty much equal at the four highest pumping powers. At the lowest pumping power the kryos XT begins to fall behind. Overall restriction isn’t bad at all; yes, it’s the most restrictive tested so far, but that doesn’t mean much, flowrates are totally acceptable.

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