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) |
|
| AVC |
Z7U7414001 (stock AM2) |
high |
17.0 |
63.0 |
| Noctua |
NH-U12 |
|
17.5 |
45.4 |
| Gigabyte |
G-Power Pro |
high |
18.6 |
71.9 |
| Noctua |
NH-U9 |
|
18.8 |
58.4 |
| Apack |
Zerotherm BTF90 |
|
20.5 |
52.1 |
| Coolermaster |
Hyper6 |
high |
20.5 |
54.7 |
| 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 |
| OCZ |
Tempest |
|
26.0 |
51.6 |
| Scythe |
Shogun |
high |
26.0 |
45.9 |
| EKL |
V8 |
high |
26.3 |
57.5 |
| Gigabyte |
3D Rocket-Pro |
high |
26.9 |
56.7 |
| Gigabyte |
3D Cooler-Pro |
high |
27.0 |
62.5 |
| 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 |
| CoolJag |
SFO-D(18SC) |
|
29.6 |
64.0 |
| 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 |
| Zalman |
CNPS7000-Cu |
high |
31.0 |
45.2 |
| Coolermaster |
Hyper48 |
|
31.7 |
43.6 |
| 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 |
| Arctic Cooling |
Silencer 64 Ultra TC |
|
37.5 |
55.5 |
| Gigabyte |
NeonCooler 8-BL |
|
37.7 |
42.0 |
| Titan |
TTC-K8ATB/825/SC |
|
38.7 |
63.1 |
| Evercool |
K802-715 |
|
42.1 |
51.5 |
| Spire |
SP741B3 |
|
43.2 |
45.6 |
| 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 frostytech synthetic
thermal test platform, the Apack ZeroTherm
BTF90 heatsink yields a very nice rise above ambient temperature at its stock
fan speed of just 20.5°C, with 52.1 dBA noise generated.
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) |
|
| Apack |
Zerotherm BTF90 |
|
21.8 |
12.7 |
52.1 |
| Apack |
Zerotherm BTF80 |
|
22.8 |
13.9 |
51.9 |
| Thermalfly |
F1-IACSHA |
high |
29.0 |
18.3 |
60.4 |
| Sunon |
Waturbo |
|
30.6 |
18.3 |
57.5 |
| Zalman |
CNPS7700-Cu |
high |
32.9 |
19.7 |
50.7 |
| Thermalfly |
F1-IACSHA |
low |
36.0 |
28.3 |
35.4 |
| Zalman |
CNPS7700-Cu |
low |
42.6 |
24.7 |
35.1 |
|
|
|
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. |
with a
150w heat load applied by the intel lga775 version of frostytech's synthetic thermal test platform, the Apack
Zerotherm BTF90 yields a rise above ambient temperature of 21.8°C with 52.1dBA.
The CPU equivalents of this test would be an Intel Pentium D / Extreme Edition
or Core 2 Quad class chip. With an 85W heat load, temperatures drop to
12.7°C over ambient.
Key to a heatsink such as this is good
airflow; the fan exhaust should always be directed towards the rear of the
computer where case fans and the power supply can aid in the removal of warm air
from within the chassis. The widely spaced copper fins offer little resistance
to airflow and consequently a slower speed fan meshes nicely with the design.
The 92mm fan employs PWM to dynamically scale fan
speed with compatible motherboards, but for the purposes of these tests the fan
was run at its full speed of 2500RPM.
With an
emphasis on copper, a very complex heatpipe
pattern, and widely spaced cooling fins the Apack ZeroTherm BTF90 is
a remarkably successful heatsink for socket AM2 or 939 AMD processors. Much
more so than was ever expected to be frank.
At first glance any heatsink that takes the form of a
butterfly, or apple, or whatever is bound to be of suspect usefulness. Yet, in
spite of these first impressions the thermal test results for the Apack
ZeroTherm BTF90 heatsink once again underscore that you can never tell how a
heatsink will perform just by looking at it.
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