80-90%くらい速くなるSSD
writeはもちろんreadもね、と
speeds that are up to 80 or 90 percent faster
than the write speeds in the previous-generation MacBook.
Read speeds are also improved.

メモリは16GBが選択可能
next-generation MacBooks could include up to 16GB RAM
as a higher-end upgrade option.
Current MacBooks are limited to 8GB RAM,
with no 16GB option available.