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It wasn’t all that long ago that I was expressing my frustration at the stagnating radiator industry, with companies including Alphacool continuing to use 5+ year old radiator designs with no research done since. Their NexXxos series was really getting long in the tooth for a lot of customers- especially those now favoring low fan speed performance for noise optimized builds. The same old serpentine, louvered fins could only do so much when you are stuck to the same fin density and core thickness, let alone experiment with other variables including fin height, fin thickness, coolant tube diameter and so on. Alphacool has in the last few months revamped almost all their products, sans the radiators. Today we get to take a look at their new radiator series termed Eisbrecher (Ice breaker)- intended for low fan speed/low noise operation- and their entry against radiators including the the XSPC RX V3 and the Black Ice Nemesis GTS/GTX. Thanks to Aquatuning, we get to take a look at this in practice and test it out.

Currently the Eisbrecher series of radiators has 3 entries- the Pro XT45 120, 240 and 360. I have the 360 mm version here, and let’s begin by taking a look at the specs from the product page:

Connection: 6x G1/4
Fans: 3
Thickness: M – 45 mm
Pressure tested: 2 bar
Color: black
Fins per inch: 10
Housing: steel
Manufacturer: Alphacool
Cooling channels: copper
slats: copper
Mounting threads: M3
Fan size: 120 mm

Technical specifications:

  • Dimensions (LxWxH): 411 x 132 x 56 mm 
  • Housing material: aluminum / steel
  • Color: Black
  • Connectors: 2x G1 / 4 “
  • Fan Size: 120 mm
  • Radiator thickness: 45 mm
  • Pressure tested: 2 Bar


  • 1x Alphacool icebreaker Pro XT45 Full Copper Radiator 360mm
  • mounting material

Straight away we notice a few changes compared to their existing NexXxos series of radiator- the radiator length here is a lot more than average for a triple 120 mm radiator, and closer in line to the floating core style radiators from EK and XSPC. Another point to note is that their dimensions list a thickness of 56 mm but then there is a separate column for the radiator thickness at 45 mm. Perhaps a typo? We will soon find out. 6 ports on the Eisbrecher Pro XT45 series irrespective of whether you have the smaller 120 mm version or the currently largest 360 mm version, and the usual 2 year warranty applies here which is fine with me for passive components. Missing here is a technical drawing but seeing as how the product was only just released, I imagine that will come up sooner than later. On to the next page now for a good look at the radiator!

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