MojoKid writes: Historically speaking, we typically see impressive performance gains each time Apple releases a new custom processor for its mobile products. Certainly that was true of the A7 SoC, the world's first 64-bit smartphone processor. So, can we expect the same kind of performance bump from the iPhone 6 and iPhone 6 Plus, both of which sport the new custom A8 SoC? Maybe not. The iPhone 6 recently surfaced in results for the Basemark X benchmark and armed with a dual-core 1.4GHz Cyclone CPU and A8 GPU, the iPhone 6 scored 21,204.26 and a earned a place at the top of the chart, though not by much. By comparison, the iPhone 5s scored 20,253.80 in the same benchmark. In other words, the iPhone 6 is currently less than 5 percent faster than the iPhone 5s, at least as far as the Basemark X benchmark is concerned.