To answer my own question, noticed this on Anandtech:
What kind of pathetic rubbish is this Intel? The vast majority of users for whom the Quick Sync stuff will be of interest will be using discrete graphics cards, not the built-in GPU.
Hopeless.
There’s just one hangup to all of this Quick Sync greatness: it only works if the processor’s GPU is enabled. In other words, on a desktop with a single monitor connected to a discrete GPU, you can’t use Quick Sync.
What kind of pathetic rubbish is this Intel? The vast majority of users for whom the Quick Sync stuff will be of interest will be using discrete graphics cards, not the built-in GPU.
Hopeless.