It is true that there are still many months for the official release of the new Ubuntu 16.10 Yakkety Yak, but all indications are that the new version it will mean a big change in performance in the distribution of Canonical.
the web Openbenchmarking.org has done a comparison between the development versions of Ubuntu 16.10 and the current Ubuntu 16.04.1, A fully finished version that offered stability and speed, although as seen, not everything the user expected.
While it is true that Ubuntu 16.10 is still in development, it is also true that it includes new parts like the GCC 6.1.1 compiler or Table 12.0.1 and other parts that are the same as Ubuntu 16.04 but will change from the final version to this case we are referring to in the kernel that version 4.8 will use and in testing it had version 4.4 of Linux.
The development version of Ubuntu 16.10 offers better performance than Ubuntu 16.04
But the performance tests have not been as impressive as many would expect, in some tests Yakkety Yak has fallen below Ubuntu 16.04.1, indicating the instability that the distribution still has, but it is something that gives more value to the next version of Ubuntu.
Yakkety Yak will have many new features in its construction. GCC 6.1.1 will be one of them, but there is also the new kernel and possibly the inclusion of Unity 8 and MIR, Items that many of us are expecting to work in a standard way and performance may increase after implementing these items, items that may still appear.
However, from my personal experience, I have no doubt about the good performance of Ubuntu 16.10 because I always work better the versions that come out in October than in April and my case is not unique. If the development of a software or an operating system were proportional, at this time we would be facing the announcement of a large operating system, unfortunately this is not the case. What do you think of the new version of Ubuntu?