When smartphones, led by the iPhone 5s in 2013, started marching towards 64-bit processors, there was a lot of talk around RAM sizes greater than 4 GB. Of course, that was one of the most obvious consequences of the new CPU architecture, but back then it was still more of a hype. This year, we're starting to see the first batch of smartphones with that much RAM inside, heralding the new high-end flagship baseline. But is it worth it already? Going by AnTuTu's Top 10 Performance devices in May, maybe not so much yet.