http://www.techradar.com/news/imac-pro

We knew they were coming. Apple recently stated that it would launch new iMacs this year and it delivered the goods with new Kaby Lake-equipped models. But in an unexpected turn of events, the Cupertino company also announced a much more powerful iMac Pro for power users.

The new iMac Pro is basically a supercharged 27-inch iMac with 5K Retina display that includes 18-core Intel Xeon processors and AMD Vega graphics.