The PCIe-SSD has a maximum capacity of up to 4 TB, but there is not much to tell about the GPUs. The step from LPDDR3 towards DDR4-RAM (2400 MHz) is another important step and the MacBook Pro now finally supports up to 32 GB memory. However, the big question is whether the cooling solution of the MacBook Pro 15 can handle the new CPUs. Besides two Core i7 CPU, you can also select a Core i9 processor for the first time. The highlight is obviously the new processor with 6 cores, so the performance should be much significantly better in multi-core applications. Apple did not just update the smaller MacBook ( here in review ), but the 15-inch sibling received new components as well.