Complex sentence: An initial batch of Skylake CPUs (6600K and 6700K) was announced for immediate availability during the Gamescom on August 5,2015, unusually soon after the release of its predecessor, Broadwell, which had suffered from launch delays.
Split into simpler sentences: An initial batch of Skylake CPUs (6600K and 6700K) was announced for immediate availability during the Gamescom on August 5,2015, unusually soon after Broadwell. An unusual feature of Skylake's release timing is that it follows very closely on the release of its predecessor, Broadwell, which had suffered from launch delays.