Read this full review.Thermal question pertaining to the i7 and the i5 in the current MBA.
Does the i7 run hotter than the i5, and is there a website that can tell me the power consumption of these two processors.
I think you're mixing up graphics chipsets. Take a look at some performance numbers.Also of note, graphics differences between the i5 and i7 are pretty large. i7 has 16 EUs, the i5 only has 6 EUs.
That review isn't very scientific if it won't run both as hard as possible. I'm not sure that either is safe from throttling. Overall if you're lagging on the Air, I'd be more likely to suggest stepping up to something that isn't the Air.Read this full review.
The i7 is worth it. It's not THAT much hotter. It's noticeably faster on heavy processes.