New iMac Joins MacBook Pro in Supporting 450 Mbit/sec Wi-Fi

by

132857 airport icon

HardMac reports that the new iMac released earlier this week brings support for 450 Mbit/sec Wi-Fi connectivity, adding a third antenna to support the higher speed using multiple-input/multiple-output (MIMO) standards when connected to a compatible network access point. The iMac joins the latest MacBook Pro in offering the improved connection speeds.

It seems that Apple seeks to standardize this data flow. Thus, the new iMac is also compatible with the 450 Mbits/s. For that, Apple changed their Airport card and also installed 3 antennas (instead of 2 before), something indispensabie to be able simultaneously to use 3 channels of 150 Mbits/s.

In order to take advantage of the increased speeds with compatible base stations such as the latest AirPort Extreme and Time Capsule, users must be sure to set the base station's options to use the 5 GHz band and to allow use of wide channels.

Related Roundup: iMac
Buyer's Guide: iMac (Caution)

Top Rated Comments

GFLPraxis Avatar
127 months ago

Sorry, but I don't see the point here, considering that 100% of the Internet connections in the world are well under 200Mbps...other than for internal networks (like file transfer between two devices), what's the advantage?

You just said it. Internal networks. Transferring files between multiple computers, streaming 1080p video from your desktop to your laptop...

Especially useful if you do network backups (say to a Time Capsule or NAS) regularly.

I have a gigabit/CAT6 network in the walls of my house. Surely, this is useless since my internet connection is only 40 mbps, right? Not exactly.
Score: 3 Votes (Like | Disagree)
cube Avatar
127 months ago

Gotcha...streaming video may be a good use for this extra bandwidth...what is the necessary rate for HD streaming?


The real need for gigabit ethernet shows in back-up.
Score: 2 Votes (Like | Disagree)
Full of Win Avatar
127 months ago

Sorry, but I don't see the point here, considering that 100% of the Internet connections in the world are well under 200Mbps...other than for internal networks (like file transfer between two devices), what's the advantage?


All my photos live on a NAS, therefore a speedy WiFi connection is a must. I use a Canon 5d mark II, and the raw files from it are ~30 MB each, which must be loaded on my computer for correction. After a day of shooting, i can have 16 - 20 GB of pictures that have to be uploaded to the NAS over wifi

Anything less than 5Ghz 802.11 n does not cut it for many users.
Score: 2 Votes (Like | Disagree)
r.j.s Avatar
127 months ago

Sorry, but I don't see the point here, considering that 100% of the Internet connections in the world are well under 200Mbps...other than for internal networks (like file transfer between two devices), what's the advantage?


Progress?

Besides, a lot of wireless bandwidth is lost due to interference and overhead ... the more theoretical bandwidth you can get, the better overall real-world performance.
Score: 2 Votes (Like | Disagree)
Starship77 Avatar
127 months ago

Thanks! Could you give details on the actual throughput? The link speed is the maximum theoretical throughput which is never achieved. When tested at release it was much slower than a lot of other models - I'm wondering if this dramatically increases transfer speeds?

There is the distinct possibility of no real world improvements - some 3x3 models just released perform no better than the best 2x2 implementations.

I did some tests:

First I copied a file from my TimeMachine drive connected to the APE:



I got a steady 14MB/s, as you can see in the screenshot.

Then I did the same test with the Ethernet Cable connected:



And, of course, it was faster, but not twice as fast as one would expect...

Then, I disabled "wide channels" (necessary for the 450 rate as described in this thread) and my link speed dropped to 216 (I was expecting 300, it must be some kinda noise or interference...)



The interesting thing is that it's not just slower, but much more inconstant than the other two, with speed varying from 6 to 10 MB/s more or less...

I hope that's useful! :)
Score: 1 Votes (Like | Disagree)
iMerik Avatar
127 months ago
Would you take an AirPort Extreme (http://www.apple.com/airportextreme/) over a Cisco E4200 (http://www.amazon.com/Cisco-Linksys-E4200-Performance-Simultaneous-Wireless-N/dp/B004K1EZDS/ref=sr_1_3?ie=UTF8&qid=1304722833&sr=8-3) or the TRENDnet TEW-692GR (I think yet to be released)?
Score: 1 Votes (Like | Disagree)

Top Stories

lg wing

LG Considering Exit From Smartphone Business, Halts LCD Production for iPhone

Wednesday January 20, 2021 5:38 am PST by
LG is considering exiting the smartphone business entirely amid declining shipments and accrued losses of $4.5 billion over the past five years (via The Korea Herald). LG CEO Kwon Bong-Seok cautioned staff earlier today that the company is re-evaluating its presence in the smartphone industry: Since the competition in the global market for mobile devices is getting fiercer, it is about...
google maps detailed street level e1611052089473

Google Maps Gains Enhanced Street-Level Detail in Four Major Cities

Tuesday January 19, 2021 2:34 am PST by
Google Maps has quietly been updated to include significantly more detailed street-level information in a handful of key cities around the world. Upon zooming in, Google's maps for Central London, Tokyo, San Francisco, and New York now benefit from shapes and widths that match the scale of roads more accurately. Meanwhile, enhanced graphical representations of sidewalks, crosswalks,...
2019 mac pro side and front

Tim Cook Gifted Donald Trump 'First' 2019 Mac Pro

Wednesday January 20, 2021 5:45 pm PST by
Apple CEO Tim Cook gifted former United States President Donald Trump with the first 2019 Mac Pro that came off of the assembly line in Austin, Texas, according to a financial disclosure report that was released today (via The Verge). "Mac Pro Computer, the first created at the Flex Factory in Austin, Texas," reads the entry, which values the machine at $5,999, the base price for a Mac Pro....
airpods max sim ejector

AirPods Max Headband Removable With Just a SIM Ejector Tool, Hinting at Interchangeable Headbands

Tuesday January 19, 2021 8:25 am PST by
It is possible to remove the headband of AirPods Max with just a standard SIM card ejector tool, hinting at the possibility of interchanging headbands to achieve a different colorway. Image via Prelook In December, MacRumors revealed the large variety of AirPods Max ear cushion color combinations when it became clear that they were magnetically attatched and available for sale separately....
iphone 5s black slate

Images of Unreleased iPhone 5s in Black and Slate Shared Online

Sunday January 17, 2021 9:47 am PST by
Twitter user @DongleBookPro has today shared images of a prototype iPhone 5s in an unreleased Black and Slate color. The iPhone 5s was launched in September 2013. The device featured Touch ID, a 64-bit processor, and a True Tone LED flash for the first time. Other new features included a five-element lens with an f/2.2 aperture, a 15 percent larger camera sensor, Burst Mode, and Slo-Mo...
iphone 12 vs iphone 12 mini

Apple Shifting Some Production From iPhone 12 mini to iPhone 12 Pro to Meet Demand

Wednesday January 20, 2021 8:12 am PST by
Apple has reportedly cut production of the iPhone 12 mini by two million units to create more manufacturing capacity for the iPhone 12 Pro, according to a new Morgan Stanley investment note seen by PED30. Apple is believed to have made the switch for the first quarter of 2021 in an effort to combat continuing lead times for the more popular iPhone 12 Pro. iPhone 12 Pro lead times remain ...
Apple VR Feature

Bloomberg: Apple's First AR/VR Headset 'Pricey, Niche Precursor' to More Ambitious AR Glasses and Could Launch Next Year

Thursday January 21, 2021 3:27 am PST by
Apple's first virtual reality headset will be a "pricey, niche precursor" to a more ambitious augmented reality product, according to a new report from Bloomberg's Mark Gurman. As a mostly virtual reality device, it will display an all-encompassing 3-D digital environment for gaming, watching video and communicating. AR functionality, the ability to overlay images and information over a view...
shot on iphone 12 apple

Apple Highlights Photos Shot by iPhone 12 Users: Portraits, Cityscapes, and More

Tuesday January 19, 2021 6:05 am PST by
Apple today shared a gallery of photos shot by customers using the iPhone 12 mini, iPhone 12, iPhone 12 Pro, and iPhone 12 Pro Max, with scenes including cityscapes, landscapes, portraits of people, and more at day and night. Shot on iPhone 12 Pro Max by "NKCHU" in China (top) and shot on iPhone 12 Pro Max by Rohit Vohra in India (bottom) iPhone 12 mini and iPhone 12 models have a dual camera ...
Apple and Hyundai feature

Apple Car Production Again Linked to Kia Motor's US Plant in Georgia

Tuesday January 19, 2021 4:19 am PST by
Hyundai intends to transition the company's Apple Car involvement to its Kia brand as part of an internal arrangement that could see production move to the U.S., according to a new report today. On Sunday, Korea IT News reported that Apple and Hyundai are seeking a partnership agreement for the upcoming Apple Car by March, and that the electric vehicles could be made at a Georgia factory...
iPhone 13 Notch Feature

iPhone 13 Rumored to Feature Smaller Notch, Pro Model Cameras to Use Larger Image Sensor

Thursday January 21, 2021 1:38 am PST by
Apple's iPhone 13 series will feature a redesigned Face ID system that will allow for a smaller notch at the top of the screen, according to a new report today. The rumor comes via hit-and-miss Taiwanese industry publication DigiTimes, whose supply chain sources also claim that the ultra wide-angle lens in Apple's next-generation iPhones is due for an upgrade. The next-generation iPhones'...