4 cores or 8 cores?

[Peleg]

* Both GPUs should support Vulkan but I'm not sure if the older phone will get Nougat, so that may be a factor too. Vulkan is a new graphics API that PPSSPP is starting to support, and it'll probably be faster.

-[Unknown]

Where i can read about Vulkan, i little bit getting interested

Also i want ask about which phone (Meizu M3 Note Or Xiaomi Redmi Note 3 Or OnePlus One) will do the best performance on ppsspp..

Thanks!