Intel Core i7-4770K "Haswell" Tested, Not a Leap Ahead of i7-3770K, But Consistent@ 2013/03/19
In some tests, the i7-4770K offers as much of a performance upgrade over the i7-3770K, as it does over the i7-2700K, in others, it's less than linear. In its conclusion, Tom's Hardware notes that it found the i7-4770K on average, 7 to 13 percent faster than the i7-3770K in today's multi-threaded workloads, which is roughly consistent with what the i7-3770K offered over its predecessor, the i7-2700K. Find the entire preview in the source link below. Intel's Core "Haswell" line of desktop processors are expected to launch in June, 2013.