Tracking GHz isn&#x27;t an accurate way to measure performance. Take a look at this table, which looks at Instructions Per Second for a number of different processors&#x2F;devices:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Instructions_per_second#Timeline_of_instructions_per_second" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Instructions_per_second#Timeli...</a><p>To see an example of why GHz isn&#x27;t an accurate way to look at performance, compare these two:<p>Pentium 4 Extreme Edition - 9,726 MIPS at 3.2 GHz<p>Intel Core i7 5960X - 238,310 MIPS at 3.0 GHz<p>That said, it is possible to have CPUs that exceed 4GHz. Heat is the issue you need to overcome.<p>Here&#x27;s an Intel&#x27;s Core i7-4770K, overclocked to 8GHz:<p><a href="http:&#x2F;&#x2F;www.tomshardware.com&#x2F;news&#x2F;Intel-Haswell-Overclock-i7-4770K,22454.html" rel="nofollow">http:&#x2F;&#x2F;www.tomshardware.com&#x2F;news&#x2F;Intel-Haswell-Overclock-i7-...</a>