The 11-inch as a Windows Notebook

As a follow-up to our Nvidia 320M/MacBook Pro 13 article last week, I’ve been running our Windows test suite on the MacBook Air 11”. I, like Anand, have the lowest end 11”er, with 2GB memory and the 64GB SSD. This makes installing Windows an interesting proposition since after the two OS installs, you’ve got right around 30GB of free disk space to work with. My suggestion - if you plan on installing Windows and dual booting often, save yourself the headache and get the 128GB model.

The other quirk with putting Windows on the Air is that it must be done with a USB optical drive - no hard drive/thumb drive installs. Interestingly, my external optical drive wasn’t recognized as a bootable drive, so I had to run out and grab an Apple SuperDrive. Apple says that you just need an external DVD drive, without specifying the MacBook Air SuperDrive, but your mileage may vary.


Boot Camp Drivers are now downloaded from Apple's servers prior to the Windows installation

With the Windows install out of the way, we were free to test the living daylights out of it, and that we most certainly did. The 11” Air has the same 1.4GHz Core 2 Duo SU9400 as the similarly thin Dell Adamo 13. Months after we move to Arrandale ULV, leave it to Apple to bring the good old CULV platform back to relevance. As expected, Cinebench and the x264 encoding test gave us results around the same level as the Adamo and the rest of the old CULV gang. Versus the 13” MacBook Pro, you’re looking at roughly a 40% decrease in the CPU compute-heavy benchmarks, roughly equivalent to the reduction in clock speed from the 2.4GHz Pro to the 1.4GHz Air. Arrandale ULV notebooks, such as the Alienware M11x and its Core i7-620UM, are another matter entirely, with the newer architecture posting numbers nearly doubling the Air’s Core 2 processor.

3D Rendering - CINEBENCH R10

3D Rendering - CINEBENCH R10

Video Encoding - x264

Video Encoding - x264

The gaming benchmarks get a bit more interesting. We’re looking at the same GT 216-derived GeForce 320M that was in the MacBook Pro 13, with the same 450MHz core and 950MHz shader clocks. Based on the performance we saw out of the Pro 13, we know that the Air, even in 11” form, can still hold its own in games.

DiRT 2

Left 4 Dead 2

Mass Effect 2

Stalker: Call of Pripyat

StarCraft II: Wings of Liberty

At low detail settings, the Air is pretty consistently 20% slower than the Pro 13, except in SC2, where they were roughly equal. Given that the GPU is identical and that both are using 256MB of the system’s DDR3 1066 memory, it is likely that the 1.4GHz Core 2 Duo is slow enough to put a bottleneck on gaming performance. It’s still a ways ahead of the ASUS Core i3/G 310M combo, and all of our games are playable at native resolution.

DiRT 2

Left 4 Dead 2

Mass Effect 2

Stalker: Call of Pripyat

StarCraft II: Wings of Liberty

At medium settings though, the Air starts to fall off a bit. Where the MBP13 was borderline-playable, always between the 25-35 fps range, the Air is about 10% behind and makes it to the magical 30fps mark in STALKER, but nothing else. DiRT 2, Left 4Dead 2, Mass Effect 2, and StarCraft II all ended up between 22 and 26 fps, still faster than the G 310M, but not quite playable. Another interesting concern during gaming is heat. The Air isn’t the coolest notebook in the world, with idle temps hovering around 50C, but while running the gaming tests, I saw GPU temps rise up into the 70s. Nothing too alarming, but still pretty toasty and more than enough to get the fans spinning to the max.

But let’s put this all in perspective. This isn’t about just an 11.6” notebook that can game - the 11.6” M11x is the fastest gaming notebook under 5lbs, but even then it’s still a full two times heavier than the MB Air 11. The Air 11 shoehorns quite a bit of power into one of the smallest form factors on the market. Having a GT 216 core in an enclosure this small and being able to run these games at 40 fps at native resolution is definitely very impressive.

The Battery Life Final Words
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  • nvidia2008 - Wednesday, October 27, 2010 - link

    Great article, just one niggle, Instant On does not refer to Boot, nor Wake From Sleep.

    From the Apple website:

    "And when you put MacBook Air to sleep for more than an hour, it enters what’s called standby mode. So you can come back to MacBook Air a day, a week - even up to an entire month later - and it wakes in an instant."

    http://www.apple.com/macbookair/design.html

    Instant On refers to a Standby Mode (basically hibernate) that is not Boot nor Wake From Sleep.
  • AMDJunkie - Wednesday, October 27, 2010 - link

    This is a good point; Macs with hard drives have "deep sleep" standby, which is the typical, "Hey, your battery is about to die so we're taking the system state from RAM to the hard drive" hibernation. This is an SSD, though, so I presume it writes it to the SSD after an hour, instead of after your battery dips under 5%, to help you save battery.
  • nvidia2008 - Wednesday, October 27, 2010 - link

    Yeah, I think Deep Sleep is the most closely related thing to Instant On, not Boot or Wake From Sleep. Cheers
  • hechacker1 - Wednesday, October 27, 2010 - link

    OS-X, when put to sleep by closing the lid, will write out the necessary parts of memory to the hard drive.

    Then if your battery dies, the hibernate state resumes when you plug it back in.

    If you have a ton of applications open and are using a lot of ram before closing the lid, it does take noticeably longer to actually begin sleep and turn off the HD, as indicated by the light on the macbook.
  • tipoo - Wednesday, October 27, 2010 - link

    Yeah, Instant On is really just fast-wake-from-hibernate.
  • Tuntavern - Wednesday, October 27, 2010 - link

    Now there ARE two.
  • ginny - Wednesday, October 27, 2010 - link

    Hi
    You had said that your macbook air was using about 1.4 gb of memory when diting a handful of imgs in Photoshop. Do you think then that it isnt the best machine to get if I anticipate in using Adobe CS frequently? Do you think i should opt for a MBP instead? Or will upgrading the CPU and Memory suffice?

    Thanks!
  • zhill - Wednesday, October 27, 2010 - link

    Good review. I was waiting for you guys to review the new airs, good data. FYI, your images comparing the 13" MBA's size appear to be labeled incorrectly. I think the image (http://images.anandtech.com/reviews/mac/macbookair... is comparing the MBA 13" to the MBP 15" rather than the MBP 13".

    I'm also surprised that the screens had such a limited color gamut, I expected something in the 70% range rather than 40% but I suppose they trade that for energy efficiency(?).

    I would be very curious to see your benchmarks include a new air with the 2.13GHz C2D and 4GB RAM to compare that to the the 1.86Ghz. I seem to recall that the last generation 2.13Ghz Air had even more thermal throttling issues than the lower spec chip so I wonder if it has been addressed in that configuration as well.

    Any ideas on how they achieved such a fast wake time compared with the MBP 15" w/SSD? Typically, a sleep/wake operation is not very dependent upon the disk as the memory is kept powered so the system state should easily be restored without much disk access. Interesting stuff.
  • dsee15 - Wednesday, October 27, 2010 - link

    Great Review, thank you!

    How much faster do you think the 13 MBA with 2.1Ghz proc, 4GB Mem, 256GB SSD would be over the stock model you tested? Do you think the faster proc will generate too much heat and initiate the governor?

    How would this 'tricked out' system run VMware/windows/office?

    Lastly, it appears the tricked out version could out perform both the 13 MB aluminum with hard drive and 13 MBP with hard dive, except for the most cpu intensive apps, agree...??? Could it replace a 15 MBP with hard drive?
  • doubledown21 - Wednesday, October 27, 2010 - link

    Will there be any updates to the benchmarks if/when the 2.13GHz MBA is tested?

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