Chip used in WD TV Gen2

What is the Sigma chip used for WD TV Gen2?

Is the same used for WD TV Live?

I can expect the same Video/Audio performance in Gen2 than with Live?

The differences are only Network and video components output?

Thanks

Check hardware specifications here:

http://wdtvforum.com/main/index.php?topic=4242.0

In short: gen2 and Live share the same processor, but Live has twice the memory size.