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 (Don't Buy)
Related Forum: iMac

Top Rated Comments

GFLPraxis Avatar
144 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
144 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
144 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
144 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
144 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
144 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)

Popular Stories

iPhone 14 Purple Lineup Feature

Will the iPhone 14 Be a Disappointment?

Saturday May 21, 2022 9:00 am PDT by
With around four months to go before Apple is expected to unveil the iPhone 14 lineup, the overwhelming majority of rumors related to the new devices so far have focused on the iPhone 14 Pro, rather than the standard iPhone 14 – leading to questions about how different the iPhone 14 will actually be from its predecessor, the iPhone 13. The iPhone 14 Pro and iPhone 14 Pro Max are expected...
iPhone 13 Face ID

'High-End' iPhone 14 Front-Facing Camera to Cost Apple Three Times More

Monday May 23, 2022 7:05 am PDT by
The iPhone 14 will feature a more expensive "high-end" front-facing camera with autofocus, partly made in South Korea for the first time, ET News reports. Apple reportedly ousted a Chinese candidate to choose LG Innotek, a South Korean company, to supply the iPhone 14's front-facing camera alongside Japan's Sharp. The company is said to have originally planned to switch to LG for the iPhone...
iPhone 13 Always On Feature

iPhone 14 Pro Screen Refresh Rate Upgrade Could Allow for Always-On Display

Tuesday May 24, 2022 7:23 am PDT by
Last year's iPhone 13 Pro models were the first of Apple's smartphones to come with 120Hz ProMotion displays, and while the two iPhone 14 Pro models will continue to feature the technology, their screens could well boast expanded refresh rate variability this time round. To bring ProMotion displays to the ‌iPhone 13 Pro models‌, Apple adopted LTPO panel technology with variable refresh...
apple music

Apple Increases Apple Music Subscription Price for Students in Several Countries

Sunday May 22, 2022 1:57 am PDT by
Apple has silently increased the price of its Apple Music subscription for college students in several countries, with the company emailing students informing them their subscription would be slightly increasing in price moving forward. The price change is not widespread and, based on MacRumors' findings, will impact Apple Music student subscribers in but not limited to Australia, the...
EA Apple Maybe Feature

Apple Reportedly Talked With Electronic Arts About Potential Acquisition

Monday May 23, 2022 10:58 am PDT by
Apple is one of several companies that have held talks with Electronic Arts (EA) about a potential purchase, according to a new report from Puck. EA has spoken to several "potential suitors," including Apple, Amazon, and Disney as it looks for a merger arrangement. Apple and the other companies declined to comment, and the status of the talks is not known at this time, but Apple does have an ...
sony headphones 1

Sony's New WH-1000XM5 Headphones vs. Apple's AirPods Max

Friday May 20, 2022 12:18 pm PDT by
Sony this week came out with an updated version of its popular over-ear noise canceling headphones, so we picked up a pair to compare them to the AirPods Max to see which headphones are better and whether it's worth buying the $400 WH-1000XM5 from Sony over Apple's $549 AirPods Max. Subscribe to the MacRumors YouTube channel for more videos. First of all, the AirPods Max win out when it comes ...