Part 4. Test Results (AMD), Summary Table, Conclusions
Test Results (AMD)
We use the same procedures for evaluating thermal efficiency of coolers for Socket 754/939/AM2 as for Socket 478 coolers and those that are actively used for testing LGA775 coolers. The primary data used for the consequent calculation of thermal resistance are temperature readings of the thermal diode built into a processor. What differs is the thermal source (Athlon 64 3700+ processor), the base platform (Fujitsu-Siemens D1607 motherboard), and a set of test applications.
We use the S&M utility to simulate maximum thermal load of a processor, and SystemGuard from Fujitsu-Siemens to monitor temperatures.
Diagram 6. Temperature readings (AMD)
Diagram 7. Thermal resistance (AMD)
Finally, at the end of this article we publish the noise measurement results (the procedure is described in the article Noise characteristics of coolers and the noise measurement method) as well as the efficiency/noise rating of the coolers.
Diagram 8. Noise characteristics
Diagram 9. Efficiency/noise ratio
Table 2. Summary data on the coolers we tested
Well, we've analyzed all test results, so let's draw a bottom line!
Our main conclusion today is as follows: these Mid-End coolers offer much better thermal efficiency and usability than budget products. Moreover, they can also compete with High-End products, demonstrating a close or sometimes even equal combination of usability features. Our contenders prove their "golden mean" status - decent quality for a reasonable price. They deserve more attention than people usually pay to them.
We'd like to praise the GlacialTech Igloo 5750 Silent and Igloo 5750 PWM coolers that manage to come close to functionality of High-End products and provide rich technical properties. The Scythe Mine Rev.B also performs very well - this cooler is a serious competitor to High-End products in many functional aspects. We should also mention the Arctic Cooling Freezer Pro 7 and Freezer Pro 64, which have a friendly price tag and demonstrate interesting thermal results combining them with neat usability and noise ergonomics.
So these very coolers (Arctic Cooling Freezer Pro 7 and Freezer Pro 64, GlacialTech Igloo 5750 Silent and Igloo 5750 PWM, as well as Scythe Mine Rev.B) get the Original Design award.
We wish Arctic Cooling, ASUS, Cooler Master, GlacialTech, Scythe, Thermaltake, and Titan every success in creating attractive Mid-End products! As for us, we'll keep tabs on this segment.
Vitali Crinitsin (firstname.lastname@example.org)
January 15, 2008
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