We pored over the specs to see if anything changed, and even asked Asus PR, only to be given a vague description of the Zenith II Extreme Alpha being better-optimized for extreme overclocking. We looked for even the slightest alteration, and finally came across a tiny update: While the original Zenith II Extreme had sixteen 70A MOSFETs, the new one is fitted with Infineon TDA21490 90A parts.
Read more @ Tom’s Hardware