The Core i7-4930K is particularly recommended for systems with multiple graphics cards. He has 40 PCIe lanes of the third generation, which can be split into a maximum of five video cards (16/8/8/4/4). The electricity consumption has fallen significantly compared to its predecessor Sandy Bridge-E, Intel still leaves the TDP at 130 watts. A powerful cooler is advisable, no cooler is supplied with the processor by the way included. Important: There is a motherboard with Socket LGA2011 needs that are a bit more expensive.
Although the Core i7-4930K carries a "4" in the name, it does not come from the featured in the Summer 2013 Haswell generation, but the 23 April 2012 featured architecture called Ivy Bridge. Thus, the processor AVX missing 2.0 (Advanced Vector Extensions) and TSX (Transactional Synchronization Extentions). The computing units fall out weaker - Haswell offers a fourth ALU, AGU a third and a second branch unit - and the caches are slower. For an enthusiast product that's not really up to date. Even worse is to the chipset: Intel X79 was introduced in November 2011 and ruled no USB 3.0. In addition, only two of the six SATA ports operate at 6Gbps. Since there is only this chipset for the Core i7-4930K, the outdated platform must be included in the assessment.
Thus, there is, despite all the processing power and massive memory bandwidth only four stars for the nearly two-year-old architecture and the arg dusty chipset.