Results: Rendering And Productivity
All of the tests on this page are fully optimized to utilize multi-core (and even multi-processor) configurations.
Blender stands out as the biggest beneficiary of the Core i7-4770K's Hyper-Threading technology, though FineReader and Visual Studio 2010 also demonstrate the Core i7's significant advantage, too. If you use a lot of higher-end professional apps, many of which are sped up substantially by parallelism, the premium on Intel's flagship CPU family might be money well-spent.