iPad 3 Using the A5X Chip?

Apple is expected to bring better processor and the graphics for the iPad 3. The assumption, A4 processor in iPad followed by the A5 in the iPad 2, so iPad 3 shall  using the name of A6 processor. But, if this below picture is correct, that assumption was wrong.

A post on the Mandarin language forum, WeiPhone showing a photograph from what is claimed as iPad 3 logicboard, showing the system in-a-chip (SoC) called A5X. A data code 1146 is allegedly a sign that the chips are manufactured in week 46th of 2011, which is between November 14th to 20th.

Some other features seen on this logicboard, 16GB flash memory from Hynix and Apple chips square shaped. This chip seems is a chip to manage power more efficiently than the previous iPad.

Apple rumored will introduce iPad 3 on March 7th, with LTE capabilities and  resolution 2048x1536 pixels, also 8-megapixel rear camera.