Bigfoot’s Killer Wireless-N 1102: Living up to Its Name

This is one of the few times I’ve tested a product that surprised me. I figured all wireless adapters were pretty much the same, but my experience with the Killer Wireless-N 1102 card has been excellent. I can’t say I’ve ever felt wireless networking was something to worry about, but now I’ll need to reconsider. Wading through the notebooks I have on hand, I’m actually surprised at how many of them use cheap 1x1:1 2.4GHz adapters, even on $1500+ notebooks. No wonder I haven’t been impressed with wireless throughput in the past!

Going into this review, I felt that the wireless world had largely stagnated, but it turns out that I’m probably the one falling behind. I have felt on occasion that my Netgear WNR3500L router was holding me back, but I didn’t realize how much. (Before that, I had a TrendNET TEW-633GR 3x3:3 2.4GHz router that I thought was “good enough”…except for the occasional crashes and restarts. Yuck!) Testing with the Linksys E4200 router on a 5GHz radio has opened my eyes to the source of my problems: the 2.4GHz spectrum is just too crowded, so you almost never get 40MHz channels and higher connection rates. With the right router, suddenly the difference between budget WiFi adapters and expensive 3x3:3 solutions starts to make sense. Wireless networking has improved in other ways as well. For one, size matters. My oldest laptops have comparatively huge mini-PCIe adapters, and most of those aren’t even 802.11n capable. Now you can get a highly integrated 3x3:3 chip in a half-height, with the potential for Bluetooth in some cases as well.

That brings us to the star of today’s review, the Killer Wireless-N 1102. Throughput is generally equal to or better than equivalent solutions, and it can even outperform Intel’s top Ultimate-N 6300 is many tests, despite having one less spatial stream available. That’s not the real selling point, though; it’s the software, drivers, and optimizations to improve latency that allows the 1102 stand out. If the latency only helped in gaming, that might be enough, but the small file copy times show that it’s useful for non-gamers as well. I routinely copy large amounts of files and data between PCs, and in the past I’ve always felt the need to do that over a wired connection. I’m still inclined to go that route if I’m moving more than a couple gigabytes, because even the best wireless networks still fall short of Gigabit Ethernet. However, copying lots of smaller files ends up being faster than 100Mb Ethernet for a change, and if I’m not in a hurry 15-25MiB/s will get most transfers done fast enough to make hassling with wires unnecessary.

Something else that surprised me is the pricing; the Killer 1102 is roughly a $15 upgrade from Intel’s 6230, and if you’re looking at a gaming laptop, $15 is chump change. Given their earlier $200+ Killer NICs, I was afraid when Bigfoot first approached me that we’d see a repeat of such prices, but I’m happy to say that’s not the case. The Killer 1102 (and 1103) might cost a bit more than other wireless solutions, but if you care about wireless performance and latency, a $15 to $20 upgrade is reasonable.

My biggest concern is that, as good as the Killer Wireless-N is, many users will likely never notice. Faster UDP throughput generally isn’t a problem, and with most broadband connections pushing less than 20Mbps, the difference between a 144Mbps 1x1:1 connection and a 450Mbps 3x3:3 connection for Internet use is negligible. Even the lower ping times won’t matter all that much for online gaming, since a good 40ms connection between your router and a game server means the Killer Wireless-N might get 41ms average latency compared to 45-50ms on competing solutions. The removal of jitter will be a bigger benefit, but only hardcore gamers are likely to notice. Ironically, for gaming purposes Realtek’s 1x1:1 RTL8188CE is right up there with the Killer 1102 in terms of latency, and unlike the Intel and Atheros chipsets I didn’t see any large spikes during testing. (Broadcom’s BCM94322 is another 2x2:2 device that appears to have good latency in some initial testing, and it’s available with dual-band and Bluetooth support; I didn’t have time to run the full suite of tests on that card yet, unfortunately.) If you regularly use Bluetooth, you don’t do much network gaming, and/or you don’t routinely copy lots of small files, the upsell to an 1102 probably won’t be that enticing.

Ultimately, given the choice between two laptops, one with a Killer wireless adapter and one with a competing adapter, I’d prefer to get the Killer—especially on higher end notebooks. Budget and mainstream laptops can likely make do with whatever wireless adapter comes preinstalled, or look at upgrading the graphics and/or CPU before worrying about things like wireless performance. Nevertheless, if you are interested in improved wireless performance, go ahead and spend the extra money. Just don’t try using a Killer Wireless-N adapter in a crowded apartment complex with dozens of wireless routers on the 2.4GHz spectrum and then wonder why it doesn’t seem any better than your old wireless adapter.

That brings us to the final recommendation. Before buying a new laptop with the Killer Wireless-N, make sure you have a high quality router. The Linksys E4200 generally works well, but I’d be more inclined to go with Apple’s Airport Extreme. The Linksys and Airport extreme cost the same and the Airport Extreme has 3x3:3 2.4GHz support and arguably better overall performance. Then again, long-term if you’re a fan of DD-WRT you might be better off with the Cisco 4200/Linksys E4200, as the DD-WRT project has plans to add support for the 4200 but not the Airport Extreme. Once you have the router side under control, then by all means look at getting Bigfoot’s speedy Killer Wireless-N for your laptop(s).

Thanks also to Mythlogic for providing us with the test laptops. We’ll have a full review of their Pollux 1400 (Clevo W150HR) in the near future.

Update: Interestingly, Mythlogic just emailed me to inform me that they're also selling the Bigfoot 1102 and 1103 adapters via Amazon. You can grab the 1102 for $40, or go whole hog with the 1103 for $60. By comparison, Intel's 6200 goes for $24 and their 6300 costs $35 (though the latter is currently out of stock). So, if you have an laptop with poor wireless that you'd like to upgrade, you can take the plunge.

Killer Network Manager and Other Thoughts
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  • neothe0ne - Sunday, August 14, 2011 - link

    "And Dell, Asus, Acer, and Sony all do the same thing."

    Are you sure about that? I was under the impression HP and Lenovo were alone in the industry with the WLAN whitelist. And anyway, Dell does offer the Intel Centrino 6230 on the XPS 15 now, unlike HP's dv6 which is stuck in budget-tier Intel WiFi Link 1000 land.
  • cjl - Tuesday, August 16, 2011 - link

    Dell, at least in their Alienware products, definitely does not whitelist. After reading this article, I got one of the Killer 1102 cards for my M11xR2 (which comes with a rather terrible card by default, and there were no upgrade options offered), and it works just fine. I popped it in, installed the drivers, and everything has been working great since.
  • Musafir_86 - Thursday, August 11, 2011 - link

    Hello,

    -Thanks for the article, but did you tested those adapters with or without any security/encryption/password protection scheme? I mean WEP or WPA/WPA2 - I think encryption put some overhead in the throughput.

    Thanks.
  • JarredWalton - Thursday, August 11, 2011 - link

    All testing was done with WPA2 AES. Most modern cards do fine with that, though a few years back it was sometimes slower IIRC.
  • Musafir_86 - Thursday, August 11, 2011 - link

    -Okay, thanks for the clarification. :)
  • Yummer72 - Thursday, August 11, 2011 - link

    Thanks for the informative review.

    I wonder if Bigfoot will continue to have an advantage if the "WLAN Optimizer" program was used with the other WiFi cards?

    http://www.martin-majowski.de/wlanoptimizer/

    I have personally seen significantly improved performance and the elimination of "lag spikes" (QuakeLive) with this software tweak.

    Any comments?
  • JarredWalton - Thursday, August 11, 2011 - link

    I'll give that a try; it could very well remove the spikes, leaving the primary advantage as the lower base latency.
  • bhima - Thursday, August 11, 2011 - link

    You should review that 95% color gamut matte screen in that Mythlogic ;)
  • loopingz - Thursday, August 11, 2011 - link

    First of all thanks for highlighting that I can change my wifi adaptator on my laptop. Mine is always frozing during transfert in windows (linux is fine).

    Second thanks for helping me choosing the good one.

    I hesitate now between intel 6300 for range, correct performance and price, and the 110 2/3 for pure performance.
    May be best of two worlds intel 6300 in the eeepc that travel a lot and bigfoot in the main home laptop.

    Can I recycle a my old wifi card or a new one using an antenna and puting it in my desktop computer?

    I will give try to Wlanoptimizer too because watching movie from the raid5 nas still not perfect (router linksys e3k).

    Thanks for the good job.
  • name99 - Thursday, August 11, 2011 - link

    "Wireless networking also tends to need more overhead for error checking and interference losses, and there’s a question of whether the streams are linearly independent enough to get higher throughput, orientation, directionality of signal, etc. Even though you might connect at 450Mbps or 300Mbps, you’ll never actually reach anywhere near that level of throughput. In our testing, the highest throughput we ever saw was around 75% utilization of the available bandwidth, and that was on a 300Mbps connection."

    This is not a useful description of the situation. The nominal speed of a connection (ie the MCS index) already includes error correction overhead --- that's why you see a range of bit-rates, with the same parameters (modulation, number of streams, bandwidth) --- these different bit-rates correspond to different levels of error correction, from the strongest (1/2 coding rate) to the weakest (5/6).

    It is also unlikely that corrupt packets and the retransmission (what you are calling "interference losses", though in your environment noise is likely more relevant than interference) are substantial --- both ends aggressively modify the MCS index to get the best throughput, and try to keep the number of corrupt packets low.

    The real issue is the MAC --- the negotiations over who next gets airtime. This used to be a big deal with wired ethernet as well, of course, but it went away with switches around the time we all moved to 100TX. The basic 802.11n MAC does not rely on any real co-ordination, just on timing windows and retries, and it wastes a phenomenal amount of time. 802.11e improves the situation somewhat (I expect all the systems that get 75% efficiency are using 802.11e, otherwise they'd see around 50% efficiency), but it's still not perfect.
    What one really wants is a central arbiter (like in a cell system) that hands out time slots, with very specific rules about who can talk when. For reasons I don't understand, 802.11 has been very resistant to adding such a MAC protocol (802.11e has elements of this, but does not go full-hog), but I would not be surprised if we finally see such as part of the 802.11n successor --- it's just such an obvious place to pick up some improvement. The real problem is that to do it right you have to give up backward compatibility, and no-one wants to do that. At least if we'd had it in 802.11n, then we'd be part way to a better world (people could switch it on once all their g equipment died, eg at home).

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