Hello, I'm planning to buy the new MacBook Pro 15", mainly to use for photo editing in Lightroom and Photoshop. I'd like to use it with the LG Ultrafine 5k because of the big 27" retina display. By the way I still have a few hesitations about it. Maybe you could help me! - Do you think I have to order the best config with 2.9 Ghz CPU and Radon 460 ? Or could the 2.7 Ghz CPU be enough ? - Do you think the image will be smooth in Lightroom and Photoshop ? - Do I have to anticipate fan noise with this config ? If someone is using the same config with Lightroom, I'd be happy to read some review. Thanks everyone.