Hi! My friend is in Hong Kong and he has found MacBook Pro 15inch 2.3Ghz Intel Core i7 16Gb RAM 512GB SSD GTX750 with Retina Display. Check this screenshoot: The price is 1300 USD. I am wondering if thismodel hasseparated grafic card- not integrated. I can not find on the internet MacBook Pro with GTX750 grafic card. Any feedback on the model? Also wondering if this model will supportto external 4K monitors? I have found this video: .... is this the same model?