By Josh Beckerman 



   Apple Inc. said a new 27-inch iMac has double the memory capacity of its predecessor and offers a 10-core Intel Corp. processor option for the first time. 


  The 27-inch iMac, starting at $1,799, will begin arriving to customers and will be at select Apple stores and authorized resellers starting this week. 


  Apple said the a Retina display with 14.7 million pixels and 1 billion colors provides "text that looks like a printed page." The company said that "for customers using their iMac more than ever to connect with friends, family, and colleagues, the FaceTime HD camera now features 1080p resolution." 


  Write to Josh Beckerman at josh.beckerman@wsj.com