In this article are some benchmarks of Linux 4.3 vs. 4.4 vs. 4.5 Git when using an Intel Core i5 6600K "Skylake" processor with HD Graphics 530. The test system was running Ubuntu 15.10 but aside from swapping out the vanilla kernel build there was also Mesa 11.2-devel running on the system and Intel DRI3 was enabled.
If you are unfamiliar with the Linux 4.5 Intel (i915) DRM improvements made this cycle, see our Linux 4.5 feature overview.
As you might have guessed when seeing this was a short article, the results aren't hugely different in this Linux 4.3 vs. 4.4 vs. 4.5 comparison. However, in some cases, Linux 4.5 is slower than the earlier releases.
But overall, there aren't any big surprises one way or another for Intel HD Graphics 530 with Linux 4.5.
You can find the rest of these Intel Linux graphics benchmark results from this OpenBenchmarking.org result file.