Its the laptop SKU with the DDR4 memory controller turned on.
Its not suitable as a desktop anyway really.
Although some Mini ITX systems with Carrizo CPU's could be cool!
After all they have those PC sticks & mini boxes with Atoms and Carrizo stomps all of them so.....
With the lower prices for DDR3, I can stuff my 2 boxes with lots and then when Zen does finally ship, I can retrofit one box at a time.
My most recent motherboard is the MSI 970A-G43 which I bought to replace the M4A77D which suffered from SATA problems etc
This newer board is much faster so its as much an upgrade as it is a repair
With a pair of machines using DDR3 I need to consider buying RAM by the tray
The new motherboard is faster?
I would say most likely only the ram is faster.
But there is no reason to buy ram by the tray.
I have 8 machines and 7 of them use DDR3.
I have no use for a tray of RAM lol.