5. Intel 3.4GHz Core i7-3770
The Intel Core i7-3770 processor is similar to the Core i7-3770K version in many respects. While the i7-3770 version has a standard clock speed of 3.4GHz instead of the K version's 3.5GHz, both models come with a Turbo Boost speed of 3.9GHz. Intel's K models also come with an unlocked multiplier for overclocking. For a slightly lower clock speed and no unlocked multiplier, the i7-3770 goes for approximately $305.