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Kingston HyperX PC3-12800 (1600MHz) 24GB Kit - Test System Setup and wPrime

By: Shawn Baker | DDR-3 Memory in RAM | Posted: Jun 16, 2010 6:26 am
TweakTown Rating: 90%Manufacturer: Kingston



We would like to thank the following companies for supplying and supporting us with our test system hardware and equipment: Intel, ASRock, Sapphire, Western Digital, Noctua and Corsair.


We've tested the Kingston kit against itself in three forms; 24GB at its default timings, 24GB at its maximum overclock and 12GB at the default timings again.


Let's get started!


Important Note: When modules are overclocked we adjust the BCLK which not only lets us fine tune the MHz out of a module, but in turn increases the overall CPU clock speed. While we always make the effort to include the BCLK and CPU Speed in our graphs, please just make sure that you make note of these when looking at the results. In some tests that don't purely test the memory speed the extra MHz on offer from the CPU can increase the result. Of course, it's worth noting that having faster memory gives you the ability to run your CPU at a higher speed.




Version and / or Patch Used: 1.62
Developer Homepage:
Product Homepage:



wPrime uses a recursive call of Newton's method for estimating functions, with f(x)=x2-k, where k is the number we're sqrting, until Sgn(f(x)/f'(x)) does not equal that of the previous iteration, starting with an estimation of k/2. It then uses an iterative calling of the estimation method a set amount of times to increase the accuracy of the results. It then confirms that n(k)2=k to ensure the calculation was correct. It repeats this for all numbers from 1 to the requested maximum.




Across the board we see that the extra memory doesn't change wPrime performance. This doesn't come as too much of a surprise, though, since this benchmark focuses more on the CPU than anything else.


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