I use it for both Mac and Windows operating systems, four cores i7, 16GB RAM, light and portable.

The only reason I gave it four stars is that when it is on a heavy use, it gets really hot and the fan is loud. I can stand an inch thickness and half a pound heavier total of five pounds or less for more room for the larger heat sink that way the CPU, RAM, GPU can breath easier and the performance will be much more improve. When you are using a heavy load like video encoding or 4k encoding, you need to plug it to an AC outlet to give the CPU, GPU a full juice of energy. Thinness is good for Macbook AIR that does need much performance, Macbook Pro does. Mac OS is using less system resource than Windows, you will see when Windows is running on this machine and compare both. Four cores i7, 16GB of RAM, only 2GB of Video memory (4GB should be minimum, 6GB is recommended for supporting dual 4K displays). The 4x PCIe SSD drive performance is OK, it is not really twice the performance in real use vs the pro version of regular SSD drives as advertised but you paid premium for it.Read full review

Verified purchase: Yes | Condition: Pre-owned