MacBook Pro 15-inch screen size Resolution 2880x1800 Processor: GHz Intel Core i7 RAM: 16GB Storage: 512 Graphics card: Intel Iris Pro Battery: Very excellent and lasts long with you The device is on update 10.10.5 and update 15 is available on a home device if you want to change from update 10, you just need a flash drive. Offer reached 450