Apple has updated its top of the line MacBook Pro with Retina display lineup with faster chips. The company updated the 13-inch models and two 15-inch notebooks that have Intel's newest i5 and i7 Haswell processors. The entry-level 13-inch model now comes with a 2.6 Intel Core i5 chip and 8GB of memory instead of the 2.4GHz Core i5 chip, and 4GB of memory Apple was offering yesterday. Apple's also made a change on the entry-level 15-inch model, bumping the memory up to 16GB from 8GB and the processor from 2.0GHz to 2.2GHz.

Prices have re3mained unchanged; the MacBook Pro with Retina display is starting at $1,299 for the 13-inch model and $1,999 for the 15-inch model. In addition, the more expensive 15-inch model has dropped from $2,599 to $2,499.

The new models come a few months ahead of the next major version of Mac OS X Yosemite, which Apple opened up to one million beta testers last week. The new software, set for release this fall, brings a new look, an expanded notification center with widgets, and interplay with iOS devices to let users hand off what they're doing from one device to the other.