From page 3 Step 18: "Like the A5, the A5X system features a 1 GHz dual-core CPU. The upgrade that earns it an 'X' is the new GPU, which Apple claims outperfor

From page 3 Step 18: "Like the A5, the A5X system features a 1 GHz dual-core CPU. The upgrade that earns it an 'X' is the new GPU, which Apple claims outperforms even Nvidia's Tegra 3 processor." Considering that even last year's A5 outperforms Tegra 3 on many benchmarks casting aspersions here seems meritless. You might quibble with Apple's 4x claim but that is not how this reads.