A Few More Details on the A9X From Andrew Cunningham →


Andrew Cunningham:

Imagination’s chart for the Series 7XT GPU puts a hypothetical 12-core design in the same general performance neighborhood as an Nvidia GeForce GT 730M, a low-end discrete GPU that’s a bit slower than the stuff Apple is shipping in its high-end MacBook Pros. Our own graphics benchmarks place it a bit higher than that, but as some of you have pointed out, iOS may have a small advantage in some of these tests because of differences between the mobile OpenGL ES API in iOS and the standard OpenGL API used in OS X.

He also mentions the probable cause for the lack of an L3 cache.

Quite frankly, I’m a bit surprised it’s as fast as it is in benchmarks, because it doesn’t feel that fast — many animations which are as smooth as silk on the iPad Air 2, stutter on the Pro. Apple obviously needs to further optimise iOS for the new screen size and resolution.

Chcesz zwrócić mi na coś uwagę lub skomentować? Zapraszam na @morid1n.


  1. Tbh, my 6 Plus stutters like never before with horrible fps drops, after upgrading to iOS 9.1. Do you think a restore from iTunes could help?

  2. Nope — I don’t think it will help. My 6S Plus is only a bit better than my ex-6 Plus. The 6 and 6S are perfect however.

  3. At this point my 6 Plus lags so much that it’s really annoying. There’s noone to blame other than Apple for optimizing iOS so badly. And it’s just a previous gen iPhone, not 4S or 5!

  4. Turning on ‘Reduce motion’ might help significantly. Lag happens due all of that blurring. I’ve personally tested animation frame rate and speed with disabled blur on a jailbroken 6 Plus and it was silky smooth.

  5. Gave that a shot. Didn’t help unfortunately

  6. I forgot to say turn on ‘Increase contrast’ as well. That removes blur.

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