In theory the Intel Atom and AMD E processors remain ideal for small HTPCs. They are efficient and easy to keep silent, and also affordable. However, the graphics capabilities of the Atom D2700 aren't up to par. AMD does better in this regard, but even its GPUs in the E-350 and E-450 aren't powerful enough to simultaneously run all forms of post-processing on HD video. Moreover, the AMD E-CPUs aren't fully compatible with the Linux version of XBMC. You can read all about how these two chips compare to each other in our comprehensive review.
The limitations of the Atom D2700 apparently made Zotac take a step back to reflect on possible solutions. What if you combine the new Atom processor with a dedicated and energy-efficient GPU? The result is the Zotac D2700-ITX WiFi Supreme motherboard, on which the Atom D2700 processor is accompanied by an Nvidia GeForce GT 520.