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Thermalright Ultra-90 Low Noise Heatsink Review
Thermalright Ultra-90 Low Noise Heatsink Review
  98%   
Abstract: Resembling a block of downtown apartments, the Ultra-90 stands 147mm high in shimmering nickel-plated glory.

 Manufacturer  Category  Published  Author 
Thermalright   Cooling / Heatsinks   Jun 21, 2007   Max Page  

Home > Reviews > Page: Intel 775 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)

Thermalright Ultra 120 17.8 10.6 53.7
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
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
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
Thermalright Ultra-90 low 24.8 15.7 40.0
Asus Arctic Square high 24.9 14.9 44.9
Akasa AK-922 (EVObue) high 25.5 15.4 60.3
Thermalfly F1-IACSHA high 29.0 18.3 60.4
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
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
Thermalfly I75DUH 37.8 22.8 48.7
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
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 widely in heat output between single and multi-core processors, so frostytech relies upon on two different thermal values to represent the upper limits of existing intel single and multi-core cpu families; 150w and 85w. in the first round of testing a 150w heat load is applied by the intel lga775 version of frostytech's synthetic thermal test platform to the Thermalright Ultra-90 heatsink.

The reference list above illustrates very well how most Intel heatsinks react to 150W of heat from the CPU test die... In this case though, the Thermalright Ultra-90 proved itself exceptionally!

Thermalright's Ultra-90 heatsink maintained a rise above ambient temperature of just 19.6°C, with 56.2dBA noise. That is the third best result Frostytech has seen to date! The noise level is a little higher than I would typically run, but the 92mm Zalman PS92252H fan is so common it just makes a great reference point.

When the 92mm PWM fan speed was dropped down to the lowest the Zalman FanMate2 fan speed controller would allow, temperatures rose to 24.8°C over ambient, while noise levels fell to a very quiet 40.0dBA. When faced with a 150W heat load and a slowly rotating 92mm fan, Thermalright's Ultra-90 still managed to perform better than at least 28 other Intel heatsinks operating at full fan speed!

The Thermalright Ultra-90 heatsink was next tested with an 85W heat load. In this case the heatsink maintained a good 13.0°C over ambient at full fan speed. As fan speed was reduced to low noise mode once again, the heatsink reacted in a predictable manner. This time the temperatures rose to 15.7°C, just a 2.7°C change.

The thermal performance of the Thermalright Ultra-90 heatsink is slightly less than the stock AMD Athlon64 AVC Z7U7414001 (AM2) heatsink and dramatically better than the stock AMD socket 939 AVC Z7U3301001 heatsink. On the Intel platforms the Ultra-90 is dramatically better than the stock Pentium D bifurcated-fin heatsink. Next to the Thermalright Ultra-120 heatsink, the Ultra-90 runs a couple of degrees warmer at full fan speed. The open framework of the Thermalright Ultra-90 heatsink allows users to endlessly try different combinations of 92 mm fans with the cooler, so if you want quieter just choose the right kind of fan.

So where does that leave us; is the Thermalright Ultra-90 worth your $40 bucks? Hell ya! This is an excellent low noise capable heatsink, and as Frostytech has shown you on both Intel LGA775 and AMD 939/AM2 synthetic test platforms, the Ultra-90 deals with heat very efficiently. Highly recommended.

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 Previous Page ° Heat Sink Review Index  

Table of Contents:

 1:  Thermalright Ultra-90 Low Noise Heatsink Review
 2:  360° View - Thermalright Ultra-90 Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  AMD K8 Heatsink Temperature Comparisons
 5: — Intel 775 Heatsink Temperature Comparisons

List all Thermalright heat sinks that Frostytech tested?

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