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          | FrostyTech Mk.II 
            Synthetic Thermal Heatsink Test Results AMD Athlon64 / FX / X2 & 
            Sempron class heatsinks
 Results 
            based on readings from a 38x38mm copper interface die with 125W heat 
            load on the K8 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 939/940/754 & 
            AM2 compatible CPU heatsinks |  | 
  
    |  | 
  
    | manufacturer: | model no.: | *fan speed: | 125w thermal test 
      (°c) | noise level (dba) | 
  
    | 
 | 
  
    | Thermalright | Ultra-120 |  | 12.4 | 53.7 | 
  
    | 3Rsystem | Iceage 120 | high | 16.1 | 47.9 | 
  
    | Zalman | CNPS9700 LED | high | 16.5 | 56.5 | 
  
    | AVC | Z7U7414001 (stock AM2) | high | 17.0 | 63.0 | 
  
    | Noctua | NH-U12 |  | 17.5 | 45.4 | 
  
    | Gigabyte | GH-PCU23-VE | high | 17.5 | 65.6 | 
  
    | Thermalright | Ultra-90 | high | 18.2 | 56.2 | 
  
    | Gigabyte | G-Power Pro | high | 18.6 | 71.9 | 
  
    | Enzotech | Ultra-X | high | 18.7 | 59.1 | 
  
    | Noctua | NH-U9 |  | 18.8 | 58.4 | 
  
    | Evercool | Buffalo HPEA-10025 |  | 19.5 | 50.2 | 
  
    | Cooljag | Falcon 92-AL | high | 19.8 | 52.1 | 
  
    | Akasa | AK-876 | high | 20.0 | 48.2 | 
  
    | Xigmatek | HDT-S963 | high | 20.1 | 50.2 | 
  
    | Akasa | AK-920 | high | 20.2 | 52.9 | 
  
    | Scythe | Mine Rev.B |  | 20.4 | 36.8 | 
  
    | Cooljag | Falcon 92-Cu | high | 20.4 | 52.8 | 
  
    | Apack | Zerotherm BTF90 |  | 20.5 | 52.1 | 
  
    | Coolermaster | Hyper6 | high | 20.5 | 54.7 | 
  
    | Asus | Arctic Square | high | 20.9 | 38.3 | 
  
    | Apack | Zerotherm BTF80 |  | 21.3 | 51.9 | 
  
    | Thermaltake | Venus 12 | high | 21.7 | 68.1 | 
  
    | Cooljag | SFO-Q | high | 22.2 | 60.6 | 
  
    | ASUS | Starice | high | 22.8 | 67.4 | 
  
    | Zalman | CNPS9500 AM2 | high | 23.0 | 53.2 | 
  
    | Arctic Cooling | Freezer 64 Pro |  | 23.2 | 50.9 | 
  
    | Coolermaster | Aquagate Mini | high | 23.2 | 59.2 | 
  
    | Thermaltake | Polo 735 | high | 23.4 | 68.0 | 
  
    | Cooljag | SFO-H | high | 23.6 | 60.6 | 
  
    | Alpha | PAL-8150 |  | 23.7 | 58.9 | 
  
    | Zalman | CNPS9500 LED | high | 23.8 | 50.3 | 
  
    | Verax | Helado |  | 24.3 | 36.3 | 
  
    | AVC | Z7U3301001 (stock 939) | high | 24.6 | 59.9 | 
  
    | Zalman | CNPS8000 | high | 24.8 | 57.4 | 
  
    | Gigabyte | 3D Cooler-Ultra | high | 24.8 | 63.0 | 
  
    | Zalman | CNPS7500-Cu LED | high | 25.0 | 50.9 | 
  
    | Scythe | Kama Cross |  | 25.1 | 40.0 | 
  
    | nPowertek | TTIC NPH1000 |  | 25.8 | 47.5 | 
  
    | OCZ | Tempest |  | 26.0 | 51.6 | 
  
    | Scythe | Shogun | high | 26.0 | 45.9 | 
  
    | Rosewill | RCX-Z2-EX | high | 26.3 | 45.9 | 
  
    | EKL | V8 | high | 26.3 | 57.5 | 
  
    | Rosewill | RCX-Z3 | high | 26.5 | 58.6 | 
  
    | Thermalfly | F1-IACSHA | high | 26.6 | 60.4 | 
  
    | Zalman | FS-C77 |  | 26.7 | 56.5 | 
  
    | Gigabyte | 3D Rocket-Pro | high | 26.9 | 56.7 | 
  
    | Zalman | CNPS7700-Cu | high | 27.0 | 50.7 | 
  
    | Gigabyte | 3D Cooler-Pro | high | 27.0 | 62.5 | 
  
    | nPowerTek | NPH-Big K8 |  | 27.8 | 54.0 | 
  
    | Akasa | AK-922 (EVObue) | high | 27.9 | 60.3 | 
  
    | Zalman | CNPS7700-Cu LED | high | 28.1 | 49.8 | 
  
    | Akasa | AK-873 | high | 28.2 | 59.2 | 
  
    | Scythe | Katana II |  | 28.3 | 37.9 | 
  
    | Spire | SP601B3 |  | 28.3 | 48.9 | 
  
    | Ajigo | MF064-074 | high | 28.8 | 60.3 | 
  
    | Gigabyte | 3D-Rocket |  | 28.9 | 50.7 | 
  
    | Vantec | Mach1 | high | 29.2 | 56.9 | 
  
    | Thermalright | SLK-948U |  | 29.4 | 58.8 | 
  
    | AVC | Z7U7414001 (stock AM2) | low | 29.6 | 48.1 | 
  
    | CoolJag | SFO-D(18SC) |  | 29.6 | 64.0 | 
  
    | Antazone | AS-C1000 |  | 30.2 | 57.6 | 
  
    | Arctic Cooling | Alpine 64 |  | 30.5 | 43.9 | 
  
    | Zalman | CNPS7000A-Cu | high | 30.3 | 45.2 | 
  
    | Dynatron | SK-V24 |  | 30.3 | 56.4 | 
  
    | Verax | Quattro 1 | high | 30.7 | 55.4 | 
  
    | Xigmatek | AIO-S80DP | high | 30.7 | 55.0 | 
  
    | Zalman | CNPS7000-Cu | high | 31.0 | 45.2 | 
  
    | Coolermaster | Hyper48 |  | 31.7 | 43.6 | 
  
    | Rosewill | RCX-Z1 | high | 31.9 | 54.1 | 
  
    | Scythe | Kama SCKK1000 |  | 31.9 | 47.5 | 
  
    | Scythe | Samurai SCSM1000 | high | 32.1 | 51.6 | 
  
    | Zalman | CNPS7000B-CU | high | 32.3 | 44.9 | 
  
    | Thermaltake | Silentboost K8 |  | 32.3 | 49.7 | 
  
    | Jetart | JAX801 |  | 33.2 | 53.5 | 
  
    | Dynatron | A22 |  | 34.5 | 44.5 | 
  
    | nPowertek | NPH K8-1 |  | 34.6 | 52.2 | 
  
    | Ajigo | MF043-044 (stock 754) |  | 35.0 | 45.4 | 
  
    | Zalman | CNPS7500-Cu LED | low | 35.5 | 32.5 | 
  
    | Arctic Cooling | Silencer 64 Ultra TC |  | 37.5 | 55.5 | 
  
    | Gigabyte | NeonCooler 8-BL |  | 37.7 | 42.0 | 
  
    | Spire | Fourier IV SP607B3-C |  | 38.4 | 60.2 | 
  
    | Titan | TTC-K8ATB/825/SC |  | 38.7 | 63.1 | 
  
    | Akasa | AK-860SF |  | 39.4 | 45.2 | 
  
    | Evercool | K802-715 |  | 42.1 | 51.5 | 
  
    | Spire | SP741B3 |  | 43.2 | 45.6 | 
  
    | Arctic Cooling | Freezer 64 LP |  | 45.3 | 42.6 | 
  
    | Evercool | Magic Cooler |  | 46.6 | 55.5 | 
  
    | ASUS | Starice | low | 92.4+ | 34.4 | 
  
    |  |  |  | 125w thermal test 
      (°c) | noise level (dba) | 
  
    | *heatsinks are ranked according 
      to the 125w 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. | 
with a 125w heat load applied by the amd k8 
version of the frostytech synthetic 
thermal test platform,   the Zalman CNPS7500-Cu LED heatsink 
yields a rise above ambient temperature result of 25.0°C at its default fan speed (50.9 dBA noise). 
Using the Fan Mate2 we reduce the fan speed to 1150RPM, and in this 
case CNPS7500-Cu LED maintains a temperature of 35.5°C above ambient. At this lower 
fan speed, the heatsink produces no more than 32.5 dBA noise. 
   Clearly, the Zalman 
CNPS7500-Cu LED heatsink is well suited as a low noise heatsink 
on the K8 AMD platform. The results 
for this heatsink on the Intel LGA775 version of FrostyTech's synthetic thermal test 
platform are up next.