A few weeks ago, we published an Athlon cooler roundup, a comparison of ten high-end heatsinks. By now, three new interesting Athlon coolers have appeared on the market - so it's time for a small update. We're having a look at two dual fan units from RDJD and a dual fan heatsink from Vantec.

The testing methodology for this test has been described in the heatsink testing methodology article.

Test with "simulator"

Heatsink 

    Temperature

Vantec

36.9

RDJD K703

37.1

RDJD K702

38.3

Alpha P7125
YS Tech fans

31.8

Global WIN VOS32

32.1

Alpha P7125CM60
Sanyo Denki fans

33.7

Global WIN FKK32

34.4

Montac ArcticCircle
(1)

36.6

Global WIN FKK50

37.6

Global WIN VEK32

40.1

TennMax VIVA STF

40.7

RDJD K701

40.9

  simulator temperature
  simulator temperature (from Feb. 00 roundup)

All values in deg C.

 
(1)The Montac ArcticCircle, unlike other heatsinks in this comparison, should be mounted directly on the CPU core, without the Athlon thermal transfer plate. This improves performance; the simulator test does not take this into account. Real-world performance might therefore be better.
Note that the tested heatsinks already represent a selection of some of the best available heatsinks; this means that even heatsinks that reached relatively high temperatures in this test might still be above-average when compared to cheaper heatsinks targeted at OEMs. All of the heatsinks tested would allow an Athlon-650 to run perfectly stable at 750MHz without overheating.
 

All three heatsinks tested in this update did not fit the test motherboard (ASUS K7M), so we're only publishing test results obtained with the "CPU simulator".  Keep in mind that today, "ASUS K7M compatibility" is not a very important factor for those who plan to buy a new Athlon system in the near future, since the K7M is probably close to the end of its life cycle, and the new Athlon motherboards that are about to appear on the market cause less problems with heatsink compatibility than the good old K7M.

The RDJD K703

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