When the MacBook Pro with Retina display was launched and you wanted to buy one, you had to stick with the base models Apple provided. The only configurable option was to increase the memory from 8 to 16 gigabytes. However that has changed, because Apple has expanded the configuration options on the low-end model so you don't have to buy the pricier model if you want a bit more juice out of your Retina MacBook.
You can now upgrade the processor and storage as well. It's $100 more if you want the 2,6 GHz model over the base 2,3 GHz quad-core Intel i7 CPU, and another $250 more if you want 2,7 GHz. To increase the base 256 GB flash storage to 512 GB, it will cost you $500. Apple charges $1,000 more for 768 GB of flash storage. By comparison, the high-end model costs $600 more and offers a 2,6 GHz processor with 512 GB of storage.
For those users who like to get started even faster after buying their MacBook, you can now choose to have individual iWork applications preinstalled. This can come in handy if you don't have a fast Internet connection, because normally iWork has to be downloaded via the Mac App Store.
The shipping time has also been brought down to five or seven business days, instead of one or two weeks.
Source: Techradar | Image via Apple