WiFi Performance

Microsoft made an unusual choice for Surface’s WiFi hardware, it uses a Marvell AVASTAR dual-band MIMO (2x2) 802.11n wireless network controller (88W8797?). Marvell tends to be one of the more cost effective players in the industry which could help explain Microsoft’s choice.

Despite the rarely used silicon, WiFi range on Surface is quite good. Subjectively I was able to hold on to 2.4GHz signals at greater distances than I could on both the 3rd gen iPad, ASUS’ Transformer Pad Infinity and even compared to the VivoTab RT based on some short time I had with the device. Surface also maintains good distances on 5GHz however the performance drop offs are far more significant.

The sweet spot for Surface’s WiFi appears to be around 40 feet away from an AP, with minimal obstructions (doors/walls are fine). Within this range in my testing I was able to maintain speeds of around 20 – 40Mbps. Add another 20 or so feet and you’ll see performance cut in half again.

Although range is good on Surface, at the outer edges of coverage you’re looking at 2 – 4Mbps, which is only really enough for casual web browsing.

The only real downside to Surface’s WiFi performance is its peak performance. I wasn’t able to get beyond 42Mbps when copying files to the device from a local server on the network. It’s possible that I was limited by some file sharing protocol overhead, but without a good suite of network performance tools for Windows RT it was the best I could do for now.

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  • Netscorer - Wednesday, October 24, 2012 - link

    For a corporate customer RT will never be a solution. And that touch keyboard is non-usable, period. Anand was going round and round about how you must strike with fore and precision to make it count, how you must go through the prolonged learning curve, how you don't have any tactile response. Just trying not to sound too negative on the keyboard. The only positive he said about keyboard (if you remove all the colored words) is that at the end of he day it is better then typing on glass. Big deal. Anything is better then typing on glass.

    As for the Surface being a hybrid between laptop and tablet and how this is a perfect match, let me agree to disagree with you. In concept, taken abstract device that can work for me in my 9 to 5 life and 6 to 10 life, yes it would be great. This particular implementation of Windows 8 RT with strained hardware and lousy screen (in part because higher res screen would strain that hardware even more) - the answer is no.
  • xype - Wednesday, October 24, 2012 - link

    Yeah, it felt a bit that way, didn’t it? But then, AnandTech reviews often feel like they’re written by someone who’s just excited about their newest toy and go a lot into hardware, too. While for other kinds of hardware that isn’t as big of a deal, reviewing smartphones and tablets should go into a different direction, I think.

    That tablet manufacturers can put in decent hardware and that a company like Microsoft is actually competent enough to produce a well designed tablet should be a given by now.

    But a tablet or smartphone are not something you stuff into your PC tower and forget about it, like a graphics card or CPU fan. Is it comfortable to use on the lap, is the lack of USB charging annoying in day to day use, is Excel really usable for something like bookkeeping without being annoying after 5 minutes, does it work well as an ebook reading device, etc?

    To be fair, ArsTechnica’s review is a bit better but still doesn’t go into software _at all_. That’s not confidence inspiring to me…
  • phexac - Wednesday, October 24, 2012 - link

    Agreed. Just look at iPad reviews. They ALL state "it's a pleasure to use" and then go into zillion reasons for why. This review spent more time raving about a kickstand (btw how do you kickstand it in your lap? so this is desktop only portable device???) than about the experience of actually using Surface. Could always be because using it is actually pretty meh and nothing to write about.
  • phexac - Wednesday, October 24, 2012 - link

    Definitely agree with this. Anand's negative points seemed to be pretty close to deal breakers, and yet they were completely skimmed over. As was the fact that apps take 2.5-5 times longer to start than on a tablet. And a complete omission of actually using software on the tablet. Just looking at the pictures with typical desktop tiny menus in the programs and desktop interface makes you wonder how practical it is to it is as a touch device wen anything bigger than a mouse pointer would be too big for those menus.
  • seapeople - Saturday, October 27, 2012 - link

    So what is it then? Is Anand an Apple fanboi because he made the Surface seem boring, or is he a Windows schill because he glossed over the down falls of Surface?

    It's got to be one or the other, right? It's not possible that this review is actually accurate to the product?
  • WP7Mango - Wednesday, October 24, 2012 - link

    Why should you care who Microsoft are targeting with this device? Think about it for a second...

    If you don't know who it's for, then it's clearly not for you. But it might fit someone else's requirements perfectly, and if it does then that is of no consequence to you - so don't worry about it.
  • B3an - Wednesday, October 24, 2012 - link

    I had a good feeling about this tablet, and it was right. Surface RT is clearly an excellent tablet.

    But i would have prefered one with Intel Clover Trail. As mentioned, we need to see battery life with this SoC, but i very much expect it to be close to the ARM based Surface.

    Surface would be perfect with Clover Trail. Same form factor, fanless, better performance than ARM, and the full blown Win 8. And yes i know theres the Pro version of Surface in 3 months time, but the Core i5 is overkill for many, it needs a fan too, and obviously will have much lower battery life. Clover Trail would have been the perfect balance for most people.

    Such a shame, so close to my perfect idea of a tablet, but i'd happily still have ARM + Surface RT over a iPad or Android tablet for so many reasons.
  • Netscorer - Wednesday, October 24, 2012 - link

    Completely agree with you. Good and usable Atom-based Intel CPU, which is x86 compatible, married with Windows 8 and all that effort that Microsoft clearly made to make you feel like you own a premium product with Surface - this would have been wonderful. This is what Microsoft should have released at the beginning, leaving Windows 8 RT to the sub $300 bargain tablets from 3-rd party vendors.
    Clearly, Intel could not commit to the Oct.26 release date and it forced Microsoft's hand at developing this half-baked solution. We also don't know how good Clover Trail Atom will be. Because if it's really going to be good, this will be the first actually usable Intel Atom processor. Especially if they will marry it with HD4000 GPU.
  • karasaj - Wednesday, October 24, 2012 - link

    Honestly, if Surface had launched with Tegra 4 (not possible sadly) or S4 Pro (should have been possible) or even S4 Krait, it would be insanely nice. Performance is only barely "below" what it really needs to be to be unnoticeable - a tablet/notebook that runs office, netflix, and the occasional game (and internet browsing). An ARM cpu with better IPC would have been a better choice over 4 cores, imo.

    I wish Surface would re-release with the S4 Pro or something. I would completely buy that. Atm, I'm deciding whether or not it's worth it. I certainly like the idea of it, it just seems like it -might- be a tad under powered.
  • beginner99 - Wednesday, October 24, 2012 - link

    $699. Thats more I paid for my already overpriced Asus T91 netbook (has touchscreen and can be used in tablet form) over 3 years ago. While Surface sure has better battery life and Win RT is better suited for touch device, I don't see a reason to replace it with surface. but then I hardly ever use it anyway.

    $699 is the price I would pay for the version with real windows and more capable CPU. Wasn't following the rumors so don't know if that actually will be made at all?

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