Though Apple claims (and I have found it to be mostly true) that you cannot compare its products based on specs alone, as what makes Apple products work much better than its competition is the tight integration. For example a competing smartphone might have a higher megapixel camera than the iPhone but the photos from the iPhone still might come out much better and the reason? Better software capabilities of the iPhone integrated well with its in-house built hardware. This has also been the argument mostly used by Apple and its close supporters defending against quibbles targeted at Apple being spendthrift in its products' specs.
With all the iPhone 7 rumors running amok, I might actually skip buying this generation because of a few reasons, but one of them being that I am completely happy with my iPhone 6S. In the sense, there is nothing I need more as of now from my iPhone that the iPhone 6S does not offer. The phone is still capable and has surprisingly not slowed down yet (we will see how it is with iOS 10, as we all know the history... ). But if there is one thing I would like my iPhone 6S to be better at, it is its RAM capacity. I keep running into RAM shortages as evidenced by reloading of Safari tabs, springboard reloads, patchy App transition animations when too many Apps are open, stuck too often at a particular screen though only for a few seconds, etc. These are all due to the OS being much more demanding than what the hardware has in supply, mostly in RAM capacity.
This is not a new situation for me. I often have found myself in a similar place with my Mac and thats why I always max out on the RAM upgrades whenever I can with a Mac. I don't mind going only with a basic processor but the RAM has to be at its highest capacity for me. But unfortunately we can't do that on the iPhone. We don't even know what the iPhone's RAM capacity is unless iFixit or AnandTech or someone similar tears it apart after its release and we can't upgrade the RAM as per our wish on the iPhone like we can on the Mac. Hence this rumor (via MacRumors) about the next iPhone's RAM being 3GB instead of 2GB makes be happy. Albeit only a little, as apparently this upgrade is supposedly targeted only on the bigger model, the iPhone 7 Plus!