This image is actually why people building gaming PCs should be hopeful about Zen. All consumer-level Intel CPUs come with integrated graphics on the chip, whether you're using it or, in the case of gaming PCs, not. Chips like the 6600K and 6700K don't have quite as much die area dedicated to integrated graphics as the Iris Pro chip above, but as you can see here it's still quite a large chunk of the chip:
This is relevant because Summit Ridge (the first Zen-based CPUs to be launched in October) don't have any integrated graphics. This means smaller, cheaper dies, which means AMD will almost certainly have the scope to be very competitive on price. Even if Summit Ridge only provides 80-90% of the performance of the latest Intel chips, if they can do that for 60-70% of the price they could be a very interesting value proposition.