I've been looking to get a new laptop, and I'm looking for something with good battery life and a good video card. After all, those are no longer mutually exclusive thanks to technologies such as NVIDIA Optimus.
But here's my question.
All Core i5 and i7 chips have onboard Intel HD graphics, right? Then, if you get a laptop with a powerful dedicated graphics card and an i5 or i7 processor, are you able to switch to use that Intel HD graphics and not the dedicated card? This obviously saves an incredible amount of battery life and I'm very interested in doing so.
So why doesn't every laptop with dedicated graphics and an i5 or i7 processor have Optimus? I mean, both graphics chips are in there, right? Does the Intel HD just sit there unused for its entire lifetime?