POST A COMMENT

13 Comments

Back to Article

  • iwod - Friday, October 25, 2013 - link

    But would the old iPad Mini be using the Qualcomm MDM9615 w/WTR1605L as well. As with the iPhone 5C changed to those as well. ( So Straightly speaking 5C isn't really an iPhone 5 with different shell ) Reply
  • evonitzer - Friday, October 25, 2013 - link

    They discussed this either on the podcast on in the 5C review. You are right that the 5C is not exactly a 5 in plastic clothes. Where it makes sense, Apple sourced the same part for the 5S and 5C, resulting in a few little improvements. Reply
  • ssiu - Friday, October 25, 2013 - link

    Dos the S5L8960X also imply 1GB RAM for both iPad Air and iPad mini retina? (Or are the memory separate from the A7 so S5L8960X doesn't give any clue one way or another.) Reply
  • Shadowmaster625 - Friday, October 25, 2013 - link

    What the heck are you going to do with that kind of bandwidth on a stupid dumbed down tablet that wont even fully buffer a youtube video incase you want to watch it in airplane mode? I think youtube has added such a feature but still that is beside the point. By defualt these things buffer next to nothing. Reply
  • evonitzer - Friday, October 25, 2013 - link

    I'm probably feeding a troll right now, but Brian discusses the reason for greater bandwidth all the time. Rush to sleep. Better battery life can be achieved by downloading everything super quick and then putting the radio to sleep. Reply
  • Wolfpup - Friday, October 25, 2013 - link

    I don't see how he's trolling. I'm not sure how any of that applies except for background tasks like syncing mail/calendars? Maybe that matters for that though. Reply
  • Belegost - Friday, October 25, 2013 - link

    Two reasons:

    1 - That bandwidth is not dedicated to your phone. The cell has a certain amount of time/frequency resources that it has to multiplex with all users demanding simultaneous access. The peak throughput is a (rough) measure of a device's efficiency at receiving data. So imagine a case where two users are trying to download from the same cell at the same time - the cell gives user A 1 second of data, then user B 1 second of data, back to A, then B...

    So if user A can receive a peak of 150Mbps and user B only 100Mbps, then the best each could do would be 75Mbps for A, and 50Mbps for B averaged over time. So A will receive the same data 50% sooner than B, and when A is done, then B gets his data faster since all the resources can be devoted to B. So because A has a faster handset, BOTH A and B get better service when they are trying to use the same cell.

    Now extend that to 100 users, if user A has 150Mbps handset, but everyone else has 100Mbps, then user A gets an average of 1.5Mbps, and the others only 1Mbps. That is a very noticeable difference in any data activity. So in the long run, having more efficient phones will enable better performance even when the network is increasingly loaded.

    2 - It was mentioned by another commenter, but awake time for the modem is controlled by how quickly data can be moved, the faster data is finished the sooner the modem can return to a low power mode. This may not seem like much comparing 150Mbps to 100Mbps as most data transmissions at those rates would be really fast. But when the network is not empty those rates fall, and awake times for all users increase.

    Also to answer the comment made that it would only help background tasks. Not at all true. Even when a user is actively browsing a website, the majority of data traffic is in a burst when something new is done, while the user is reading text, or scrolling the page, the modem can go to sleep. It's important to remember that things that seem really fast on human time scales are actually really slow in silicon timescale, so sleep gating can be done on sub-millisecond time scales, and in the two seconds you take to find the link you want on a page and click to start a new page, the modem has probably gone to sleep and woken up hundreds of times.
    Reply
  • Wolfpup - Friday, October 25, 2013 - link

    It feels kind of weird for Apple to switch back to just a single chip for both iPhone and iPad. iPad mini I can see (I guess), but I was hoping for something beefier for the iPad 5.

    Oh well, I guess this chip's GPU beats the 4's regardless, so...

    Was hoping for some kind of interesting new hybrid device too...
    Reply
  • solipsism - Saturday, October 26, 2013 - link

    That's one way to look at it but another would be that this is the beefier chip but it's also being used in the iPhone 5S. Perhaps clocked a little lower and/or there are some aspects of the chip that isn't enabled on the iPhone but is on the iPads. Check out the memory bus in the 5S review.

    At some point this was likely to merge. I didn't think it would be this soon but it was bound to happen. Have you considered how the Retina iPad Mini can get 10 hours of battery life but the same chip with a beefier battery still only gets 10 hours of battery life? They are now pushing the same number of pixels so the only real difference in power would be MIMO and the ≈50% larger backlight, right? Is that enough to account for everything or is it possible the A7 in the iPad Mini is clocked lower?
    Reply
  • alidoors - Tuesday, March 18, 2014 - link

    are you going to buy the ipad Air i recommend the suppliers in China alidoors http://alidoors.com/
    they can got a better price.
    Reply
  • alidoors - Tuesday, March 25, 2014 - link


    I just bought iPad Mini Retina 128GB Wifi. I know it has ridiculus margin, but I found out it is still worth to buy it, because I have used my iPad 4th gen tremendously a lot within a year, and I am sick of its small storage so I bought it. http://www.alidoors.com

    I just mention it his statement "Apple's margin is not super high" is totally wrong.
    Reply
  • alidoors - Friday, April 25, 2014 - link

    are you going to buy the ipad Air i recommend the suppliers in China alidoors http://eternalteams.com/
    they can got a better price.
    Reply
  • alidoors - Friday, April 25, 2014 - link

    I order the products from eternalteams. http://www.eternalteams.com item as described, very fast delivery! everything is fine! I recommend! Reply

Log in

Don't have an account? Sign up now