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Best CPU Cooler Performance - Q3 2008 E-mail
Reviews - Featured Reviews: Cooling
Written by Olin Coles   
Thursday, 09 October 2008
Table of Contents: Page Index
Best CPU Cooler Performance - Q3 2008
Thermally Conductive Element Reference
Cooler Master Geminii S
Cooler Master V8
Coolink Silentator
Evercool Transformer 6
OCZ Gladiator Max
Thermaltake V14 Pro
Vantec AeroFlow FX 120
Xigmatek Apache EP-CD901
Xigmatek HDT-S1284
Zalman CNPS9300 AT
Zaward Gyre ZCJ010
TIM Application and Surface
Testing Methodology
Test Results: Stock Cooling Fan
Test Results: High-Output Fan
CPU Cooler Final Thoughts
Best of Q3 2008 Conclusion

Zalman CNPS9300 AT

When Benchmark Reviews corresponds with manufacturers to request product test samples, we ask them for the very best CPU cooler they make. So when Zalman accepted our request, they sent the Zalman CNPS9300 AT to represent their interests. At first, I must admit there was a little aprehension. First I had to get over the fact that the Zalman CNPS9300 AT was such a small cooler. But here at Benchmark Reviews, we like to leave no stone unturned.

A proprietary mounting system utilizes a bolt-through kit with a brace-arm clamping the CNPS9300 down with ample force. Designed for Intel 775 and AMD AM2+/AM2/754/939/940 socket mounting, the Zalman CNPS9300 AT is ready to cool practically every CPU made in the past four years.


There are two copper heat-pipe rods spanning from the copper-inset mounting base. The four heat-pipe ends curl around the round-shaped copper fin-sink array, and are cooled by Zalman's proprietary SuperFlo-bearing 92mm fan.

A mirror-polished copper contact surface mates to a metal upper-base segment, with heat-pipes pressed between the two parts. Because of the very smooth contact surface, only an extremely small amount of thermal paste is needed for best heat transfer.


CNPS9300 AT Specifications

  • Dimensions 61.35(L) x 108(W) x 132.5(H) mm
  • Weight 407g
  • Base Material Pure Copper & Pure Aluminum
  • Dissipation Area 2,583§²
  • Bearing Type Superflo
  • Speed 1,500rpm ¡¾ 15 % ~ 2,400rpm ¡¾ 10 %
  • Noise Level(1) 20.0dBA ~ 30.0dBA ¡¾ 10%
  • Control Method PWM Control, Auto Restart
  • Life Expectancy 50,000 hours


About the company: Zalman Tech Co., Ltd.Aftermarket Cooling for Video Cards

Zalman Tech was founded in 1999 and focused their early efforts on "silent" cooling solutions; their moto was "Noiselss Computing". They grew rapidly and their cooling product line has expanded to match the thermal challenges posed by the rapidly increasing heat load inside high performance PCs. They have also diversified with new products like 2D/3D convertible LCD Monitors, Heatpipe Cooled Power Supplies, Notebook coolers, Surround Sound Headphones, and their newest product, a FPS gaming interface.

They are headquartered in Seoul, Korea and have a staff of ~169. The company went public in 2007 and is listed on the KOSDAQ stock exchange in Korea. The CEO, Young-Pil Lee, in his greetings on the corporate website, captures the essence of their success: "Zalman will not content itself with present results and will continue its innovation driven efforts to guarantee client satisfaction."


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