FrostyTech.com Heatsink Reviews and Analysis
   
  

TOP 5 Heat Sinks     TOP 5 Low Profile Heat Sinks     TOP 5 Liquid Coolers    
 Heatsinks by Brand / Mfgr      Reviews + Articless     Advanced Search    

EKL Alphenfohn GroB Clock ner Heatsink Review
EKL Alphenfohn GroB Clock ner Heatsink Review
  87%   
Abstract: The Alphenfohn GroB Clock ner heatsink on the test bench today is a heatpipe direct contact cooler - meaning the heatpipes are exposed at the base.

 Manufacturer  Category  Published  Author 
EKL   Cooling / Heatsinks   Oct 02, 2008   Max Page  

Home > Reviews > Page: Intel LGA775 Final Heatsink Temperature Comparisons
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)

Sunbeamtech Core-Contact Freezer high 16.1 10.0 51.3
Xigmatek HDT-S1283 high 16.8 10.7 50.7
Thermalright Ultra 120 17.8 10.6 53.7
Ibuypower IBP-Z001 high 18.0 11.6 61.7
Coolermaster Hyper Z600 18.0 11.6 47.7
Xigmatek HDT-S1284EE high 18.1 9.4 44.2
Zerotherm FZ120 high 18.2 11.4 47.6
3Rsystem Iceage 120 high 18.2 12.1 47.9
Coolermaster V8 high 18.4 11.2 52.6
Thermalright Ultra 120 Extreme 18.4 11.4 44.5
Xigmatek HDT-SD964 high 18.8 11.6 57.2
SilenX iXtrema IXC-120HA2 high 18.9 11.2 52.9
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
Xigmatek S1284 Achilles high 19.6 11.6 42.7
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 2 high 20.5 12.5 41.9
OCZ Gladiator Max high 20.7 12.6 42.9
EKL GroB Clock'ner 20.8 13.2 40.6
Noctua NH-C12P high 21.2 13.1 40.4
Coolermaster GeminII S high 21.3 13.4 49.6
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
Thermaltake MaxOrb high 22.9 13.1 57.4
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
Nexus HOC-9000 high 23.6 14.6 43.0
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
Thermaltake V1 high 24.4 12.3 59.6
Intel FCLGA4-S Reference (P mode) high 24.5 15.2 61.1
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
Asus Lionsquare high 25.7 15.3 44.7
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
Thermaltake DuOrb 26.7 16.1 49.5
Scythe Andy Samuri Master SCASM-1000 26.7 14.2 38.4
Zalman CNPS9300AT high 27.1 18.2 55.5
Noctua NH-U9B high 27.1 17.2 41.9
Asus Triton 79 Amazing 27.7 17.0 44.3
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
OCZ Gladiator Max low 30.0 18.1 30.1
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
Auras CTC-868 (closed) 31.0 18.6 48.7
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
Thermolab TLI-S Micro Silencer 34.7 19.2 52.0
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
nPowertek NPH-775-140HC high 40.2 24.8 56.7
Arctic Cooling Alpine 7 Pro high 40.5 23.8 44.1
Intel Stock Core 2 Duo 49.2 29.0 36.7
Thermolab TLI-U Nano Silencer 50.4 28.8 48.3
Glacialtech Igloo 5062 Cu Light 50.6 29.7 45.2
Glacialtech Igloo 5063 Light E 56.5 32.1 51.5
Glacialtech Igloo 5063 Cu Silent E 57.3 34.4 41.0
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
Asus Triton 85 high 71.5+ 16.2 41.1
Glacialtech Igloo 5058 Light E 73.8 39.9 48.5
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 models, so FrostyTech tests heatsinks with two thermal loads that represent the upper limit of each CPU family; 150W and 85W.

With a 150W heat load applied by the Intel LGA775 version of FrostyTech's synthetic thermal test platform, the EKL Alphenfohn GroB Clock'ner heatsink maintains a very good temperature of 20.8°C over ambient, with 40.6dBA noise.

The Alphenfohn GroB Clock'ner heatsink was then tested with an 85W heat load, and managed to maintain a 13.2°C rise over ambient at stock fan speed under those test conditions.

So there you have it, the EKL Alphenfohn GroB Clock'ner heatsink quietly cools very well on both Intel and AMD platforms. While there are a handful of heatsinks which run cooler, the majority of those are louder than the 40 dBA the EKL Alphenfohn GroB Clock'ner puts out.... thus the Alphenfohn GroB Clock'ner is well worth your consideration.

Related Articles:

The Top 5 best heatsinks for low noise and low temperature are ranked here. For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 400+ heatsink reviews. Here are a few other articles that you might enjoy as well.

- Coolermaster V8 Heatsink Review
- Noctua NH-C12P Heatsink Review
- OCZ Gladiator MAX Heatsink Review
- Nexus HOC-9000 Heatpipe On CPU Heatsink Review
- ASUS Triton 79 Amazing Heatsink Review
- Coolermaster GeminII S Heatsink Review
- Xigmatek Achilles S1284 Exposed Heatpipe Base Heatsink Review

 Previous Page ° Heat Sink Review Index  

Table of Contents:

 1:  EKL Alphenfohn GroB Clock ner Heatsink Review
 2:  360° View - EKL Alphenfohn GroB Clock'ner Heatsink
 3:  Acoustic Noise Measurements
 4:  AMD K8 Heatsink Temperature Comparisons
 5: — Intel LGA775 Final Heatsink Temperature Comparisons

List all EKL heat sinks that Frostytech tested?

Facebook RSS Feed Twitter
Resources
° Got Feedback?
° Mk.II Test Platform
° Where To Buy?
° Manufacturer Index
° Industry Dir.
° Cooling Projects
Recently Tested

Arctic Liquid Freezer 120 CPU Watercooler Review

Scythe Mugen 5 Rev B SCMG-5100 Heatsink Review

Gelid Tranquillo 4 Air Cooled Heatsink Review

Coolermaster Ergostand III Laptop Cooling Stand Review

Noctua NH-D9DXi4-3U LGA2011 Xeon Server/Workstation Heatsink Review

Noctua NH-L9x65 Low Profile Heatsink Review
...More Articles >>


Websites you may also like:
PCSTATS

FrostyTech.com
Since June 1999


Find a Heatsink
Latest Heatsink Reviews
Top 5 Heatsinks Tested
Top 5 Low Profile Heatsinks
Top 5 Liquid Coolers
Heatsinks by Mfgr / Brand


Social Media
Facebook
Twitter
Pinterest


FrostyTech.com Info
Feedback
Contact Us / Heatsink Submissions
Submit News
Privacy Policy
Suite 66

© Copyright 1999-2024 www.frostytech.com All Rights Reserved. Privacy policy and Terms of Use
Images © FrostyTech.com and may not be reproduced without express written permission. Current students and faculty of accredited Universities may use Frostytech images in research papers and thesis, provided each image is attributed.