Conclusion

As we can clearly see from the results presented, the Kingston DDR3 module model KHX14400D3K2/2GN gives a better memory performance when paired up with the NVIDIA 790i SLI chipset ASUS Striker II Extreme mainboard.

Although the memory numbers are higher, it seems that applications we tried aren't able to tap the potential of the additional bandwidth. Kingston KHX14400D3K2/2GN is certified to maximise it's memory performance on the NVIDIA SLI platforms.

If you have noticed, current DDR3 modules are going beyond the DDR3-1800MHz. With the CPU running at a slower pace at 400MHz FSB or overclocked to 525MHz, the ram still runs in an ASYNC mode. For example, your CPU runs at 450x8, your DDR3 module could be running at 900MHz (DDR3-1800). That is a 1:2 ratio is being applied. Certain ratios will give you a better bandwidth while some don't.

We have also managed to overclock the pair of modules beyond the DDR3-1800 spec by running it at close to 2.2v on the same board using a E6550 at 465x6. That runs the memory at DDR3-1850 as shown in the previous pages. We ran it at a a more aggressive timing of CAS 7,7,7,20, 2T. That is pretty neat I would say.

In conclusion, if you are getting a Intel CPU and intend to run SLI on a nForce 790i board, this modules are certified to run at the correct speed. Basically, you would just need to enable EPP and you get the maximum performance out of it. If you are the one that knows the insides of memory timings, this module can overclock better than the KHX14400D3K2/2G. The BIOS will probably require more tuning to take advantage of the module to better the performance in future.

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