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8GB of RAM vs. 4 is like at most a 10minute difference. i7 might be a tiny bit more for basic tasks since idle is slightly more. Very small decrease.

Increased ram has a negligible affect on battery life. If anything, it will improve your efficiency~battery-life but also by a negligible amount. More ram may consume a little extra power for the extra DIMM but if it means you can get more done in the same amount of time....

The SDP of the i7 is exactly the same as the i5. Both chips consume the same amount of power, except the i7 has a higher clock speed and more onboard cache. Again, you'll get more done in the same amount of time.
 
I have both machines here with me now, setting up the i7 so far the fan is loud and spinning non stop while setting dropbox on a fresh machine, the i5 never had that issue, I'll report back soon.

Any update please?
Was the i5 fan any quieter doing the same activity?
 
Hoping someone here would be able to help me answer this (didn't want to start a new thread).

I currently have a 15" MBP (first Unibody) with a 2.4GHz processor, 8GB 1333 DDR3 RAM and a 128GB SSD. If I go to a 11" MBA with 1.3GHz and 8GB, will I see a downgrade/upgrade in general day to day tasks (mostly school research and writing and photo editing)?
 
I do daily pro audio work in Logic Pro. Did I forget to mention that?

But this will be your secondary machine, you already told us that you have a very powerful desktop for that purpose, of course it's your choice.

Enjoy your ultimate! it should be arriving soon right?
 
But this will be your secondary machine, you already told us that you have a very powerful desktop for that purpose, of course it's your choice.

Enjoy your ultimate! it should be arriving soon right?

I know. I don't know what I'm doing!
 
As a rank Mac Newbie, coming from old Dell Win7 Laptop, this thread has been helpful to me:

1) My months-long indecision, neurosis over "what should I get, should I wait?", along with the accompanying hand-wringing and serial visits to the Apple Store seem to be less abnormal than I supposed. It seems many people go through that struggle. I finally feel free of my analysis paralysis.

2) I'm very happy with what I ordered, which is two fully loaded or "ultimate" (as I've seen it referred to here), MBA 13s, i7, 8, 512. These screaming fast little puppies are going to change how we work.

These are for business use for my wife and I. We generally get 3 to 5 years out of our computers, so I'm expecting that much from these. As a business expense, the additional marginal cost of getting the fully loaded versions was not a factor, so that's what I did.

I do understand the concept of "most expensive not necessarily the best". That's actually true in consumer appliances like dishwashers and fridges, for example. But, personally, I felt ok topping mine out, even though the business team person at the Mac store alluded to and even told me "you'd be fine with the i5 for what you and your wife do". Was it the "smartest" decision, and do I have the "best" system for me? I don't know, but I *feel* good about it.

Our old Dell i3 W7 systems are so slow, and my fan runs 100% of the time, and it takes 5 minutes to fully boot and load. From that context, it's just going to be so great having a fast machine. I'm comparing to what I'm leaving behind, not the slightly cheaper alternative.

Ayway, looking forward to learning how to use a MAC and reading more in the forums.
 
As a rank Mac Newbie, coming from old Dell Win7 Laptop, this thread has been helpful to me:

...

Ayway, looking forward to learning how to use a MAC and reading more in the forums.

Your reasons for going with the ultimate are way more rational than a lot of people's. If you use it for business and can write it off, all the better! I'm sure you and your wife will love using them both.
 
Yes, there are a lot of reviews on past models but processors are different, impatiently waiting for a good review of both models.

That review that's linked is for a review of the latest Ultimate model i7/8GB/512SSD.

But yeah, agreed - am really stuck trying to decide between the i5 and i7 and want a detailed review that focuses on heat and battery life as much as performance.
 
But yeah, agreed - am really stuck trying to decide between the i5 and i7 and want a detailed review that focuses on heat and battery life as much as performance.

I've been looking for reviews that mention it, but so far nothing has mentioned heat. For battery life, they've all been talking about the 13" MBA in tests.
 
I've been looking for reviews that mention it, but so far nothing has mentioned heat. For battery life, they've all been talking about the 13" MBA in tests.

The only time the i7/8gb/512 that I have got hot was while reinstalling OSX and setting up a 10GB Dropbox account. After that both i5 and i7 seem to run barely warm.
 
The only time the i7/8gb/512 that I have got hot was while reinstalling OSX and setting up a 10GB Dropbox account. After that both i5 and i7 seem to run barely warm.

I got my i7/8gb/128g system yesterday and I haven't heard the fan spin up once yet. I've just done some web browsing, emails and streaming video. It's as silent as anything and not warm at all.
 
I got my i7/8gb/128g system yesterday and I haven't heard the fan spin up once yet. I've just done some web browsing, emails and streaming video. It's as silent as anything and not warm at all.

Only time was while reinstalling osx (twice) the fan was spinning like crazy for about half hour and very very hot but probably that is right for an OS install, now is cool as ice.
 
Comparison of i5 vs i7 on Macworld.com

Just in case it hasn't been linked to already in this thread (don't think I saw it) - Macworld.com have 'lab tested' the battery life of the new Macbook Airs, and compared the 'ultimate' configure-to-order (so with the i7) against the standard configuration, and found them pretty comparable (11mins longer on the movie test for the standard config, though that also had less RAM and a smaller hard-drive).

We also ran the tests on “ultimate” configure-to-order (CTO) MacBook Air models from this year and from last year. There wasn’t too much of a battery life hit on the new CTO model compared to the standard configuration; the standard configuration model lasted just 11 minutes longer than the CTO unit that has a faster processor, more RAM, and twice the hard drive capacity. Comparing this year’s CTO “ultimate” to last year’s, we saw that the new model lasted 65 percent longer.


http://www.macworld.com/article/2042376/lab-tested-new-macbook-air-offers-best-battery-life-of-any-apple-laptop.html


Hope that's some help - I'm still holding out for the 'back-to-school' offer to be announced before making a final decision!
 
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