The MacBook Pro Mid - 2014 features a 22 nm Haswell/Crystalwell 2.5GHz Intel Core i7 processor (4870HQ), with four independent processor cores on a single silicon chip. In addition, this model has a backlit keyboard, a no button glass inertial multi-touch trackpad, a MagSafe 2 power adapter, and an internal, sealed battery that provides an Apple estimated 8 hours of battery life. It also has an integrated 720p FaceTime HD webcam and a high-resolution LED-backlit 15.4" widescreen 2880x1800 (220 ppi) retina display in a case that weighs just less than 4.5 pounds (2.02 kg). It does not have an internal optical drive.