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Intel 4790K Devil's Canyon S-spec SR219 CPU Overclocking Report

By: Steven Bassiri | Guides | Posted: Jul 2, 2014 5:54 pm

CPU Frequency Testing


Two programs are used for testing maximum CPU frequency: CPU-Z and AIDA64 Extreme Edition.





Version and / or Patch Used: 1.69




CPU-Z was used for maximum CPU frequency testing, otherwise known as a validation. This is common for world records. When you see a manufacturer claim a 7GHz Haswell overclock, they are referring to a CPU-Z validation.



AIDA64 Extreme Edition


Version and / or Patch Used: Build 3011




AIDA64 was used for its stability test module; we expanded the amount of RAM used to maximize the stress on the CPU.







The stock VID is commonly used as a quick way to bin (sort by maximum speed) CPUs. However, our results might shock you: the CPU with the lowest VID was one of the worst performing.




Maximum CPU-Z validations are used all the time for world records, usually as marketing for companies. However, CPU-Z validations do not require more than a single second of stability to attain.




These maximum stable CPU frequency results are quite interesting; overall, we are able to attain 4.6GHz to 4.85GHz stable within an acceptable voltage range. The max load temperature is also listed next to each data point. The 1.4v results almost all throttled a little bit; this is designated by a (T).

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