FrostyTech Mk.II 
            Synthetic Thermal Heatsink Test Results 
             
            Intel Pentium D / Extreme 
            Edition & Quad Core class heatsinks tested at 150W Intel Core 
            2 Duo / Pentium 4 / Celeron class heatsinks tested at 
            85W Results based on readings 
            from a 30x30mm copper interface die with 150W and 85W heat loads 
            applied on the LGA775 version of the Mk.II Test Platform. 
            Temperature results listed for each heatsink were calculated by 
            determining the rise over ambient temperatures at time of test. 
            Information on Frostytech's test methodology is available 
          here. | 
            |  
        
          | Socket 775 
            compatible CPU heatsinks |    | 
  
    | manufacturer: | 
    model no.:  | 
    fan speed:  | 
    150w thermal test* 
      (°c) | 
    85w thermal test 
    (°c) | 
    noise level (dba) | 
  
    
       
     | 
  
    | Thermalright | 
    Ultra 120 | 
     | 
    17.8 | 
    10.6 | 
    53.7 | 
  
    | 3Rsystem | 
    Iceage 120 | 
    high | 
    18.2 | 
    12.1 | 
    47.9 | 
  
    | Zalman | 
    CNPS9700 LED | 
    high | 
    19.0 | 
    10.4 | 
    
       56.5  | 
 
  
    | Thermalright | 
    Ultra-90 | 
    high | 
    19.6 | 
    13.0 | 
    56.2 | 
  
    | Enzotech | 
    Ultra-X | 
    high | 
    20.0 | 
    8.5 | 
    59.1 | 
  
    | Apack | 
    Zerotherm BTF90 | 
     | 
    21.8 | 
    12.7 | 
    52.1 | 
  
    | Xigmatek | 
    HDT-S963 | 
    high | 
    21.9 | 
    13.7 | 
    50.2 | 
  
    | Akasa | 
    AK-965 | 
    high | 
    22.2 | 
    13.8 | 
    48.1 | 
  
    | Apack | 
    Zerotherm BTF80 | 
     | 
    22.8 | 
    13.9 | 
    51.9 | 
  
    | Cooljag | 
    Falcon 92-AL | 
    high | 
    23.2 | 
    14.2 | 
    52.1 | 
  
    | Rosewill | 
    RCX-Z3 | 
    high | 
    23.3 | 
    14.0 | 
    58.6 | 
  
    | Coolink | 
    Silentator | 
    high | 
    23.5 | 
    16.4 | 
    41.2 | 
  
    | Scythe | 
    Mine Rev. B | 
     | 
    23.6 | 
    15.0 | 
    36.8 | 
  
    | Cooljag | 
    Falcon 92-Cu | 
    high | 
    23.6 | 
    14.8 | 
    52.8 | 
  
    | Akasa | 
    AK-920 | 
    high | 
    24.3 | 
    14.1 | 
    52.9 | 
  
    | Asus | 
    Arctic Square | 
    high | 
    24.9 | 
    14.9 | 
    44.9 | 
  
    | Akasa | 
    AK-922 (EVObue) | 
    high | 
    25.5 | 
    15.4 | 
    60.3 | 
  
    | Coolermaster | 
    Aquagate Mini R80 | 
    high | 
    25.7 | 
    16.2 | 
    59.2 | 
  
    | Auras | 
    SLC-747 | 
    high | 
    27.9 | 
    25.7 | 
    52.2 | 
    
    | Thermalfly | 
    F1-IACSHA | 
    high | 
    29.0 | 
    18.3 | 
    60.4 | 
  
    | nPowertek | 
    TTIC NPH1000 | 
     | 
    29.3 | 
    16.8 | 
    47.5 | 
  
    | Thermalfly | 
    I75DUB | 
    high | 
    29.5 | 
    
       16.8  | 
    68.5 | 
  
    | Zalman | 
    CNPS9500 AT | 
     | 
    29.6 | 
    17.3 | 
    53.3 | 
  
    | Alpha Novatech | 
    PRE9060M92P | 
    high | 
    29.9 | 
    18.5 | 
    51.5 | 
  
    | Scythe | 
    Kama Cross | 
     | 
    30.0 | 
    18.8 | 
    40.0 | 
  
    | Akasa | 
    AK-961 | 
     | 
    30.0 | 
    18.7 | 
    
       60.7  | 
  
    | Rosewill | 
    RCX-Z2-EX | 
    high | 
    30.1 | 
    18.7 | 
    45.9 | 
  
    | nPowertek | 
    NPH-775-1 | 
     | 
    30.1 | 
    18.8 | 
    50.1 | 
  
    | Sunon | 
    Waturbo | 
     | 
    30.6 | 
    18.3 | 
    57.5 | 
  
    | Apack | 
    CF800 | 
    high | 
    31.4 | 
    20.7 | 
    48.4 | 
  
    | Thermaltake | 
    Jungle512 | 
    high | 
    31.6 | 
    20.4 | 
    60.8 | 
  
    | Coolage | 
    Frozen Orb F0-Z924AL | 
    high | 
    32.0 | 
    19.9 | 
    48.9 | 
  
    | Xigmatek | 
    AIO-S80DP | 
    high | 
    32.4 | 
    21.4 | 
    55.0 | 
  
    | Scythe | 
    Katana II | 
     | 
    32.5 | 
    18.6 | 
    37.9 | 
  
    | Rosewill | 
    RCX-Z2 | 
     | 
    
       32.6  | 
    19.3 | 
    59.9 | 
  
    | Zalman | 
    CNPS7700-Cu | 
    high | 
    32.9 | 
    19.7 | 
    50.7 | 
  
    | Apack | 
    CF900 | 
    high | 
    32.9 | 
    20.3 | 
    48.3 | 
  
    | Evercool | 
    PT02-9232CP | 
     | 
    33.3 | 
    19.9 | 
    63.3 | 
  
    | Zalman | 
    CNPS7700-Cu LED | 
    high | 
    33.5 | 
    20.6 | 
    49.8 | 
  
    | Intel | 
    Stock Pentium D | 
    high | 
    33.8 | 
    20.7 | 
    47.5 | 
  
    | nPowerTek | 
    SF775-2 | 
    high | 
    34.7 | 
    21.1 | 
    64.6 | 
  
    | Akasa | 
    AK-960E | 
     | 
    36.1 | 
    21.4 | 
    56.3 | 
  
    | Zalman | 
    CNPS7500-Cu LED  | 
    high | 
    36.4 | 
    22.9 | 
    50.9 | 
  
    | Thermalfly | 
    I75DUH | 
     | 
    37.8 | 
    22.8 | 
    48.7 | 
  
    | Akasa | 
    AK-975CU | 
    high | 
    38.4 | 
    23.0 | 
    47.7 | 
  
    | Cooljag | 
    OAK-H | 
    high | 
    38.5 | 
    22.9 | 
    55.7 | 
  
    | Cooljag | 
    OAK-H2 | 
    high | 
    38.6 | 
    24.1 | 
    55.6 | 
  
    | LS Cable | 
    SHS-T700 | 
     | 
    38.7 | 
    22.8 | 
    48.5 | 
  
    | Intel | 
    Stock Core 2 Duo | 
     | 
    49.2 | 
    29.0 | 
    36.7 | 
  
    | Glacialtech | 
    Igloo 5062 Cu Light | 
     | 
    50.6 | 
    29.7 | 
    45.2 | 
  
    | Glacialtech | 
    Igloo 5057 E | 
     | 
    58.5 | 
    36.1 | 
    53.4 | 
  
    | Spire | 
    Fourier IV SP607B3-C | 
     | 
    63.6 | 
    18.7 | 
    60.2 | 
  
    | Cooljag | 
    OAK-H | 
    low | 
    95.3 | 
    54.5 | 
    29.5 | 
  
     | 
     | 
     | 
    150w thermal test 
    (°c) | 
    85w thermal test 
    (°c) | 
    noise level (dba) | 
  
    | *heatsinks are ranked according to 
      the 150w thermal test results column (rise over ambient temp.). low 
      temperatures with low noise levels are considered best. for reference 
      heatsinks with variable-speed fans, only the high speed (12v) fan test 
      result is included in the comparison sheet; more detailed results reside 
      in each specific heatsink review. | 
 intel processors vary in power output 
between single and multi-core processors, so frostytech tests heatsinks with two 
thermal loads that represent the upper limit of each cpu family. 
with a 
150w heat load applied by 
the intel lga775 version of frostytech's synthetic thermal test platform, 
the Glacialtech Igloo 5062 Cu Light heatsink yields a satisfactory rise above ambient 
temperature of 50.5°C, with 45.2dBA noise. The Igloo 5062 Cu Light heatsink was also test 
on a 85W heat load, and in that circumstance maintained a good 29.4°C rise over ambient 
temperature.
The Glacialtech Igloo 5062 Cu Light heatsink runs roughly 
8°C cooler than its sister model, the Igloo 5057 E. It appears that the 
copper slug at the center of the Igloo 5062 Cu Light is what 
gave it that edge, so the design choice is a worthwhile one. However, we're still 
left with the impression that the Glacialtech Igloo 5062 Cu Light heatsink is 
better suited towards sub-85W Intel processors rather than Extreme Edition chips or Core 2 
Quad processors which can output in the region of 125W 
power.
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