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Corsair H70 Review



Finding out how the Corsair H70 performs is the object of this exercise. Therefore, I will be making a comparison of the CPU temperatures in both idle and loaded states. Comparisons will be made while the CPU is at stock voltage and clock speed, as well as when the CPU is overclocked and 'over-volted'. This will help to show what kind of cooling performance this cooling solution from Corsair has to offer as compared to other socket 1366 compatible high-performance cooling solutions. These cooling systems will be tested head-to-head as they are delivered from the manufacturer. I could throw in a bunch of testing variables, but it is not reflective of what the products are capable of in "as-delivered" states. To test the idle temperatures, I will allow the computer to stay in an idle state for 30 minutes and take the idle temperature at this point. For the load testing, I will use Prime95 version 25.11 and choose the blend testing and allow the processor and memory controller to heat up to their maximum temperatures. The time frame is a four-hour run to allow the temperature to peak - usually at or around the 14K test. I will use Real temp 2.7 to take the high and low temperatures and average the temperatures generated over the four cores as my reported temperatures.

Testing Setup:


Comparison Heat sinks:







The H70 delivers nothing but excellent cooling in both the stock and overclocked tests. The results put this cooler right in line with some of the best air cooling solutions on the market. When the clock speeds were ratcheted up, the only cooler that delivered better results was the NH-D14. That being said, it all comes down to capacity when you start pushing the clock speeds and voltages higher than the range we normally test in. The only cooling solution (save a custom water loop) that allows my DO stepping to run Prime 95 stable at 4.2 Ghz, has been the NH-D14 from Noctua. While the Vantaqe ALC was good, it reached the break-even point at 4.0 Ghz with temperatures in the mid 70's Celsius. The break-even point I use as a gauge is where the aftermarket cooling solutions average temperatures reach and exceed the load temperatures of the stock cooling solution with the CPU running at stock speeds and voltages. In this case, 71 degrees Celsius. The NH-D14 reached an average of 70 degrees Celsius in my Prime 95 testing at 4.2Ghz. To see if the H70 was up to the challenge I pushed the clock speeds up as high as the temperatures would allow to see if it could indeed handle the load at 4.2Ghz. The H70 from Corsair still broke through the 70 Celsius barrier and managed to keep the processor in the mid 70's Celsius only up to 4.16 Ghz, just short of the 4.2 Ghz mark I was aiming for. A little bit of a letdown, but at 4.0 Ghz the H70 stays below the 70 degree Celsius threshold. The performance of the H70 versus the H50 shows that the larger radiator and dual fans do make a serious improvement in the cooling performance delivered by the H70.

  1. Introduction & Closer Look
  2. Closer Look (Continued)
  3. Specifications & Features
  4. Testing: Setup & Results
  5. Conclusion:
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