1. Memory soldered to the CPU

2. Much more cache

3. No legacy code

4. High frequencies (to be 1st in game benchmarks, see what happens when you're a little behind like the last Intel launch, the perception is Intel has bad CPUs because they are some percentage points behind AMD on games, pressure Apple doesn't have - comparisons are mostly Apple vs. Apple and Intel vs. Amd)

The engineers at AMD are the same as at Apple, but both markets demand different chips and they get different chips.

Since some time now the market is talking about energy efficiency, and we see

1. AMD soldering memory close to the CPU

2. Intel and AMD adding more cache

3. Talks about removing legacy instructions and bit widths

4. Lower out of the box frequencies

Will take more market pressure and more time though.