That doesnt really happen anymore, hardware capability has far exceed the average competency level of most studios, resulting in incredibly sloppy code and horrendous memory management. They just arent up to the challenge today.
You would need to look to the past to see the things you are looking for regaurding pc vs console.
That is the thing most people don't seem to get regarding the seventh gen: it came too soon. NOBODY, regardless of how large they were, was ready for the HD bump. It's why we've seen so many studios fold in the last 7-8 years, including some spectacular ruinations such as THQ (who just made bad decision after bad decision) and 38 Studios (who folded after releasing ONE GAME). The current model can't work in the long run adn these band-aids that 3rd parties keep trying to apply (such as throwing GROSSLY oversized teams at project) aren't fixing anything. But, they think they can just ride out the storm and everything will be peachy in the end. Not gonna happen, not unless they change some MAJOR philosophies that were proven to be wrong.