MojoKid writes: Intel will be releasing an array of new high-end desktop processors in its recently announced Core X Series over the next few months, based on its Skylake X and Kaby Lake X microarchitectures. The first chips in the series to arrive are the 10-core Core i9-7900X and quad-core Core i7-7740X. The Skylake X-based Core i9-7900X has 13.75MB of L3 cache, a restructured L2 cache, support for AVX-512, and a base clock of 3.3GHz with a Turbo Boost Max 3.0 frequency of up to 4.5GHz. The Kaby Lake X-based Core i7-7740X has a similar 4.5GHz max boost frequency, but with a 4.3GHz base clock. This review has an array of platform, architecture, and benchmark data on tap, which shows the new processors performing well. The 10-core (20-thread) Core i9-7900X is easily the fastest desktop processor for multi-threaded workloads and the quad-core (8-thread) Core i7-7740X performs on par with the Core i7-7700K. However, both processors also overclock well, with the Core i7-7740X easily surpassing the 5GHz mark with an off-the-shelf liquid cooler.