The third generation of Kindle Fire HD tablets features the Fire OS 4 operating system and a 6- or 7-inch LCD display capable of reproducing resolutions of up to 1280 by 800 pixels. It also features a quad-core processor that reaches speeds of up to 1.5 gigahertz.
The display of the 6-inch model features a pixel density of 252 pixels per inch, while the larger screen of the 7-inch model accounts for its lower density of 216 pixels per inch. The display utilizes an advanced polarizing filter and in-plane switching technology to allow users to view the content in full detail regardless of the viewing angle.
The quad-core processor splits the processing load between two faster cores that run at 1.5 gigahertz and two slower ones that run at 1.2 gigahertz. Relative to the second generation of Kindle Fire HD tablets, the 2014 version runs twice as fast and provides up to three times better graphics performance. It features a front-facing camera that can capture video at a resolution of 640 by 480 pixels and a rear-facing camera that boasts a resolution of 2 megapixels.
The Fire OS 4 operating system includes features such as Family Library, which allows users to synchronize content across multiple devices and operating systems, and Amazon Maps, which lets users map out directions on a vector-based graphics map and peruse recommendations for hotels and restaurants.