There are many things that Apple didn't mention during the announcement of the new MacBook Pros, which are now slowly emerging online. According to a support document now published by Apple, the 13-inch MacBook Pro with Touch Bar has reduced Thunderbolt 3 ports bandwidth. Only two of the Thunderbolt 3 ports on the left side offer full performance, while the other two Thunderbolt 3 ports on the right side have reduced PCI Express bandwidth.

However, if you purchase the13-inch MacBook Pro without Touch Bar or the 15-inch model, expect full performance from all ports.

On the other hand, since the new MBP with high storage capacity is pretty expensive, most people opt for the base model with 512 GB SSD. Luckily, the SSD is replaceable and upgradable, and all you have to do is to remove the bottom lid. The how-to guide is available here.

Here are some from the teardown:

Solid State Drive module is removable

Bottom was more difficult to remove than previous generations, but it was not glued

Speaker module needs to be removed to pull SSD back

SSD had very strong tape covering the interface port

Laptop automatically turns on when you open it regardless of pressing power button

CPU - Intel 6th gen, Skylake i5-6360U

Memory - This machine uses DDR3 vs DDR4 in the machines with Touch Bar.

Keyboard - Keys seem to have a bit more throw then the MacBook.

SSD - Using NVMe driver and an Apple designed controller. (See benchmarks below).