SUMMARY:
The following displays heatsinks that recently tested at C/Ws of 0.30 or less. This is what we consider a reasonable target for for aggressive CPU cooling. The results are the average of motherboard tests; in most cases, these are a T-Bird on an Iwill KK266 and KK266+, Duron on an ABIT KT7 and a PIII on an Iwill BD133. Readers can click on heatsink names to display full test results and to determine suitability for Socket 370 use. Heatsinks will be added periodically.
In selecting a heatsink, readers are cautioned that Delta 38 and similar fans listed as “Loud” are found by many users to be objectionable; a number have abandoned these fans after a short time.
Average of motherboard test results
C/W 0.10 | 0.20 | 0.30 | 0.40 |
Delta 80mm – Loud on FAST Setting |
Delta 60mm – Loud |
Sanyo 80mm – Moderate |
Stock fan – Moderate |
Delta 60mm – Loud |
Alpha PAL 8045 – 0.23 | Orix 80mm – Moderate |
Delta 38 – Loud |
OCZ Gladiator – 0.23 | Delta 38 – Loud |
Thermaltake Dragon ORB 3 – 0.23 | Stock Fan – Loud |
Thermalright CB-6L – 0.23 | Delta 38 – Loud |
Delta 38 – Loud |
Zalman Flower – 0.24 | Adda 80mm – Moderate |
Thermosonic ThermoEngine – 0.25 | Delta 38 – Loud |
Global Win CAK38 – 0.27 | Delta 38 – Loud |
Thermaltake Volcano II – 0.27 | Delta 38 – Loud |
Power Cooler – 0.28 | Stock Fan – Moderate |
Speeze 5T060B1H3R BigRock – 0.28 | Stock fan – Moderate |
Swiftech MCX370-0A – 0.28 | Papst 33cfm – Mod+ |
Tornado – 0.28 | Panaflo 80mm – Moderate |
Speeze CopperRock Heatsink – 0.30 | Stock fan – Moderate |
I will continue to test other heatsinks as they come in, but I can’t possibly test everything available. For other heatsinks not listed, please check the Heatsink Index for possible test results. To evaluate a heatsink not tested, read Heatsink Size As A Performance Indicator for an idea of how it might perform. Currently, anything with less than a 60 x 25 mm fan of YS TECH or better is not going to cut it, with Delta 38s being almost a necessity.
For an overview of what AMD recommends, see
AMD CPUs: How Hot Is Too Hot?
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