![]() It made solid-state storage (SSD) standard, upgraded to USB 3.0, added an additional Thunderbolt port, added HDMI, and included a high-resolution Retina display. The Retina MacBook Pro was released in 2012, marketed as the "MacBook Pro with Retina display" to differentiate it from the previous model: the 15-inch in June 2012, a 13-inch model in October. ![]() One reviewer reported about 6 hours of battery life through a continuous video battery stress test in the 15-inch and another, who called the battery life "unbeatable", reported nearer to 8 in the 13-inch through their "highly demanding battery drain test". This was achieved through both greater power efficiency and adding more battery capacity. Battery life was also extended further in this update, to an estimated 10 hours for the 13-inch and 8–9 hours on the 15- and 17-inch MacBook Pro computers. All models came with 4 GB of system memory that was upgradeable to 8 GB. Save for a third USB 2.0 slot, all the ports on the 17-inch MacBook Pro are the same in type and number as on the 15-inch version. The 15-inch model also gained 0.1 pounds (0.045 kg). The 15- and 17-inch models also have an integrated Intel GPU that is built into the Core i5 and i7 processors. The 13-inch gained an integrated Nvidia GeForce 320M graphics chip with 256 MB of shared memory, while the 15- and 17-inch models were upgraded to the GeForce GT 330M, with either 256 or 512 MB of dedicated memory. The power brick was redesigned and a high-resolution display (of 1680 × 1050) was announced as an option for the 15-inch models. On April 13, 2010, Intel Core i5 and Core i7 processors were introduced in the 15- and 17-inch models, while the 13-inch retained the Core 2 Duo with a speed increase. In August 2009, Apple extended the "matte" anti-glare display option to the 15-inch MacBook Pro. For the 13-inch MacBook Pro, the Kensington lock slot was moved to the right side of the chassis. The 17-inch model would retain its ExpressCard/34 slot. All of these mid-2009 models also included a FireWire 800 port and all except the 17-inch models would receive an SD card slot. ![]() The screens were also improved, gaining a claimed 60 percent greater color gamut. Graphics card options stayed the same from the previous release, although the 13-inch and the base model 15-inch, came with only the GeForce 9400M GPU. Like the 17-inch MacBook Pro, Apple claims that they will last around 1,000 charging cycles while still containing 80% of their capacity. Some sources even reported up to eight hours of battery life for the 13- and 15-inch MacBook Pro computers during casual use, while others reported around six hours. The updated MacBook Pro 13- and the 15-inch would each have up to a claimed 7 hours of battery life, while the 17-inch would keep its 8-hour capacity. It was also announced that the entire MacBook Pro line would use the non-user-removable battery first introduced in the 17-inch MacBook Pro. ![]() At Apple's Worldwide Developers Conference (WWDC) on June 8, 2009, it was announced that the 13-inch unibody MacBook would be upgraded and re-branded as a MacBook Pro, leaving only the white polycarbonate MacBook in the MacBook line. ![]()
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