Water-Cooling Round-Up: Heatkiller V, Delta Mate, Kryos & 3 More - Bildergalerie, Bild 26

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Heatkiller V and Delta Mate MPII face off in AM5 cooling test The summer is hot, the CPU needs to stay cool, and two German manufacturers promise the perfect solution. We test their new water blocks alongside four proven models. This article is freely available from PC Games Hardware 08/2026.

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Heatkiller V & Delta Mate MPII: Watercool and Thermal Grizzly Take On Four Other AM5 Water Blocks
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[Source: PC Games Hardware]

https://www.pcgameshardware.de/Wasserkuehlung-Hardware-217994/Tests/Water-Cooling-Round-Up-Heatkiller-V-Delta-Mate-Kryos-und-3-More-1549151/galerie/4282356/
[07/20/2026] The untested Heatkiller V Pro will use coarser fins than the V Ultra, and also than the smaller IV Pro. Watercool expects slightly higher temperatures but even lower flow resistance. Otherwise, the Ultra and Pro are identical.
Page 1 Introduction & Ryzen Platform
Page 2 Test Loop & Methodology
Page 3 Test Winner, Second and Third Place
Page 4 Third to Sixth Place: The Chasing Pack
Page 5 Benchmarks, Verdict and Test Table

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