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Originally Posted by Cathar
I really am starting to become increasingly convinced that waterblock performance is hitting a wall.
With a ~100mm² CPU die size, and 6W of hydraulic pumping power, my waterblocks have exhibited roughly the following historical progression of effective convectional transfer efficiencies:
"Concept Block" - original WW precursor with plastic slit nozzle Prototype: ~62000 W/m²K
White Water x 1mm channels: ~67000 W/m²K
White Water x 0.8mm channels Prototype: ~71000 W/m²K
Free (un-nozzled) Jet Array Against flat base-plate (1mm jets) Prototype: ~55000 W/m²K
Mini-cupped free jet (un-nozzled) Prototype: ~65000 W/m²K
Cascade: ~72000 W/m²K
Cascade SS: ~74000 W/m²K
Cascade XXX Prototype: ~80000 W/m²K
Storm/G1 Prototype: ~50000 W/m²K
Storm/G3 Prototype: ~65000 W/m²K
Storm/G4: ~77000 W/m²K
Storm/G5: ~85000 W/m²K
Swiftech STORM (G4 Rev2): ~83000 W/m²K
Storm/G5 w/ G4 Rev2 optimisations (theoretical): ~91000 W/m²K (projected estimate)
Storm/G5 w/ G7-level optimisations (theoretical): ~94000 W/m²K (projected estimate)
Storm/G7: ~105000 W/m²K)
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Not in disagrement with my old
"Fantasy Cooling" when C/W(TIM)" is adjusted to the "more accepted 0.06c/w"(from 0.1c/w).(
link and
link
Updated version(terminology and C/W(TIM)=0.06) is attached.
Quote:
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Originally Posted by Cathar
Now in all that, the difference from the White Water to the Storm/G7 is about exactly 3.0C better for a 100W heat load on a 100mm² CPU die size. ).
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Difficult to comment further without access to this data