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TwoBytes

macrumors 68040
Original poster
Jun 2, 2008
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So, people with 4.1, do you notice it? Surely if they optimised iOS 4.1 for the 3G, performance should be better with the IP4?
 
I don't have iOS 4.1 but my expectations are it won't be faster on an iPhone 4. I assume they optimized it specifically for the 3G which doesn't translate into optimization for the iPhone4. I also believe that the readme from any vendor never includes all the fixes, so I can always hope...
 
4.1 actually slowed my iPhone 4 down a bit. It felt like it was paging a lot and sometimes launching apps would not show the entire launch animation. I reverted back to 4.0.2 and it's all smooth again (no matter what I open or how many things I run, it stays smooth as silk)

In my experience, 4.1 runs a tad slower on the iPhone 4. I think there may be a memory leak or something. I also tried setting it up as a new phone.
 
4.1 seems to be the smallest bit slower on the iPhone 4. I only notice it with menu animations when doing other stuff at the same time. I've also started getting lag when scrolling contacts, which I've never seen on an iPhone before.
 
Since the iPhone 4 has a better processor, even those iOS4.02 is a little bloated - thus causing the severe iPhone 3G lag, you don't notice it on the iPhone 4.

You will however get better battery life, since I am assuming iOS4.1 has a lot of optimizations and has been slimmed down.
 
I fail to see the logic in that it won't be faster on the iphone 4 as the optimisations they make for the 3g hardware is in the 4.1 software itself - it should apply to all phones, not just the 3g.

Saying that, I have to believe what you guys are saying.


Strange this, i don't see how they could make 3g specific optimisations.
 
Strange this, i don't see how they could make 3g specific optimisations.

Considering there was reports of spotlight being one of the causes of slowdowns on the 3G with 4.0, I think it's very possible for them to do 3G specific optimizations. To say there is no chance of other optimizations in there for other models would be silly though.
 
Then that would also mean it is faster on my 3GS, which isn't true at all. They just optimized the features and architecture of the specific iPhone 3G build to work better on the less powerful and limited hardware.
 
The iPhone firmware is NOT the same on every device. They have specific versions of 4.1 for each device it's being run on.
 
4.1 on my iPhone 4 is definitely snappier. Apps open and close faster, Safari is much quicker while opening and most important of all the battery life is significantly improved. My first iPhone 4 would barely last out a day and my second one could maybe get to about 1.75 days (sometimes two days) with gentle usage which I thought was alright. Now I'm getting over a day more standby now from 100% to 0%. I'm really happy with 4.1 - good job Apple.
 
The iPhone firmware is NOT the same on every device. They have specific versions of 4.1 for each device it's being run on.

Yep. I thought the codebase was the same though where they make all the underthehood performance changes..
 
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