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) |
|
| Xigmatek |
HDT-S1283 |
high |
16.8 |
10.7 |
50.7 |
| Thermalright |
Ultra 120 |
|
17.8 |
10.6 |
53.7 |
| 3Rsystem |
Iceage 120 |
high |
18.2 |
12.1 |
47.9 |
| Thermalright |
Ultra 120 Extreme |
|
18.4 |
11.4 |
44.5 |
| Coolermaster |
Hyper 212 |
|
19.0 |
11.8 |
45.9 |
| Apack |
Zerotherm BTF92 OC Ed |
high |
19.0 |
11.2 |
53.6 |
| Zalman |
CNPS9700 LED |
high |
19.0 |
10.4 |
56.5 |
| Xigmatek |
HDT-S983 |
high |
19.5 |
11.8 |
52.7 |
| Scythe |
Mugen |
|
19.5 |
11.4 |
46.0 |
| Tuniq |
Tower 120 |
high |
19.6 |
12.2 |
51.6 |
| Thermalright |
Ultra-90 |
high |
19.6 |
13.0 |
56.2 |
| Apack |
Zerotherm Nirvana 120 |
high |
19.8 |
12.3 |
49.2 |
| Enzotech |
Ultra-X |
high |
20.0 |
8.5 |
59.1 |
| Zalman |
CNPS9700NT |
high |
20.3 |
12.4 |
52.2 |
| Scythe |
Infinity SCINF-1000 |
|
20.3 |
12.6 |
37.8 |
| OCZ |
Vendetta |
high |
21.3 |
13.5 |
52.8 |
| Noctua |
NH-U12P |
high |
21.3 |
13.4 |
40.7 |
| 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 |
| Zalman |
CNPS8700 LED |
high |
23.2 |
14.1 |
48.1 |
| 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 |
| Scythe |
Zipang |
|
24.7 |
15.2 |
33.1 |
| Glacialtech |
Igloo 5750 PWM |
high |
24.9 |
14.6 |
52.3 |
| 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 |
| Asus |
Silent Square EVO |
high |
25.8 |
15.6 |
42.8 |
| Glacialtech |
Igloo 5610 PWM |
high |
25.9 |
15.9 |
59.5 |
| Thermalright |
SI-128SE |
|
26.5 |
15.2 |
44.5 |
| Scythe |
Andy Samuri Master SCASM-1000 |
|
26.7 |
14.2 |
38.4 |
| ASUS |
Triton 77 |
high |
27.7 |
17.6 |
41.2 |
| Auras |
SLC-747 |
high |
27.9 |
25.7 |
52.2 |
| Auras |
LPT-700 |
|
28.3 |
16.9 |
52.2 |
| Thermalfly |
F1-IACSHA |
high |
29.0 |
18.3 |
60.4 |
| nPowertek |
TTIC NPH1000 |
|
29.3 |
16.8 |
47.5 |
| Glacialtech |
Igloo 5710 Silent |
|
29.4 |
18.0 |
43.4 |
| Thermalfly |
I75DUB |
high |
29.5 |
16.8 |
68.5 |
| Zalman |
CNPS9500 AT |
|
29.6 |
17.3 |
53.3 |
| Glacialtech |
Igloo 5750 Silent |
|
29.8 |
18.5 |
35.5 |
| Coolermaster |
Hyper TX2 |
|
29.9 |
18.8 |
53.7 |
| 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 |
| Auras |
LPT-709 |
|
30.1 |
18.6 |
43.9 |
| Rosewill |
RCX-Z2-EX |
high |
30.1 |
18.7 |
45.9 |
| nPowertek |
NPH-775-1 |
|
30.1 |
18.8 |
50.1 |
| Glacialtech |
Igloo 5610 Silent |
|
30.4 |
17.1 |
44.7 |
| Sunon |
Waturbo |
|
30.6 |
18.3 |
57.5 |
| Akasa |
Revo (horizontal) |
high |
31.0 |
20.3 |
44.5 |
| Scythe |
Shuriken |
high |
31.4 |
18.8 |
38.2 |
| 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 |
| Scythe |
Ninja Mini |
|
33.7 |
19.9 |
41.7 |
| Thermalright |
MST-977SLE |
|
33.8 |
20.0 |
46.5 |
| Intel |
Stock Pentium D |
high |
33.8 |
20.7 |
47.5 |
| Scythe |
Orochi SCORC-1000 |
|
34.0 |
20.8 |
27.8 |
| nPowerTek |
SF775-2 |
high |
34.7 |
21.1 |
64.6 |
| Asus |
Silent Knight 2 |
high |
34.9 |
21.4 |
46.2 |
| Akasa |
AK-960E |
|
36.1 |
21.4 |
56.3 |
| Gigabyte |
Volar GH-PSV21-FB |
high |
36.3 |
22.1 |
56.1 |
| Auras |
SMF-660 |
|
36.4 |
23.0 |
43.4 |
| 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 |
| Asus |
Silent Knight 2 |
low |
38.8 |
24.3 |
41.0 |
| Arctic Cooling |
Alpine 7 Pro |
high |
40.5 |
23.8 |
44.1 |
| 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 |
| Asus |
Triton 75 |
|
58.6 |
16.1 |
49.6 |
| 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. |
The heat output from Intel processors
varies widely between single and multi-core processors, so Frostytech relies on
two thermal values that represent the upper limits of existing CPU families.
With a 150W heat load applied by the Intel LGA775 version of FrostyTech's
synthetic thermal test platform, the Asus Silent Knight II heatsink maintains an
test temperature of 34.9°C over ambient. Noise levels hold steady at 46.2dBA.
If we
drop fan speed from 2300RPM to ~800RPM, the Silent Knight II yields a 38.8°C
rise over ambient for 41.0 dBA noise.
For the
next round of testing the Asus Silent Knight II heatsink was tested with an 85W
heat load. In this case the Silent Knight II heatsink maintained a 21.4°C rise
in temperature at full fan speed, and 24.3°C at the reduced fan speed.
With a
retail price of about $70, the Asus Silent Knight II heatsink seems expensive for what
you get. While noise levels are kept moderate, and the heatsink is
compatible with both AMD and Intel processor platforms, the Asus Silent Knight
II's thermal performance is a mixed bag. On the AMD platform the heatsink
performed well at stock fan speed. The thermal test results on the Intel
platform were a little disappointing.
The Asus Silent Knight II maintained acceptable
temperatures with a 150W simulated Intel CPU thermal load, but for the price
Asus are asking there are plenty of other heatsinks which perform significantly
cooler while keeping noise
in check. Given these results, Frostytech recommends you look to another
AMD/Intel heatsink and pass on the Asus Silent Knight II.
Related Articles:
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