Personal computing discussed
Moderators: renee, David, Thresher
maxxcool wrote:*all versions* 64 bit anything take up 25+% more ram. glad the apple fans get to join reality...
You can see the 5s throttles back its CPU frequency to about 1GHz after the 2 minute mark. The crazy thing is that until that point the 5s manages to run at full frequency without so much as a hiccup for two full minutes, running an incredibly power hungry task. Given that most iOS apps aren’t this power intensive for such a sustained period of time, iPhone 5s users should almost always see the A7 running at a full 1.3GHz. Pretty crazy.
End User wrote:maxxcool wrote:*all versions* 64 bit anything take up 25+% more ram. glad the apple fans get to join reality...
Too bad Android fans have yet to join reality.
DancinJack wrote:End User wrote:maxxcool wrote:*all versions* 64 bit anything take up 25+% more ram. glad the apple fans get to join reality...
Too bad Android fans have yet to join reality.
To be fair, there are already Android phones with 3GB of RAM.
End User wrote:To be fair, that is irrelevant.
DancinJack wrote:Not really. It's a trend that won't stop with the current generation of devices.
End User wrote:maxxcool wrote:*all versions* 64 bit anything take up 25+% more ram. glad the apple fans get to join reality...
Too bad Android fans have yet to join reality.
Beelzebubba9 wrote:It's funny how people read Anand's review and picked those two points to harp on - of course 64bit software has a larger RAM footprint and of course the iPhone 5S throttles its SoC under sustained load - many smartphones do considering their low thermal headroom. The Nexus 4 (which I have) was notorious for overheating and down-clocking its SoC, and putting it in a freezer for a benchmark run would sometimes get me a 15% boost.
Anyone want to talk about how the A7 is such a beast that Apple managed to leapfrog every other ARM vendor in one shot? Or how Apple managed to increase battery life over the iPad 4 while reducing battery capacity massively to accommodate the much thinner form factor?
Beelzebubba9 wrote:It's funny how people read Anand's review and picked those two points to harp on - of course 64bit software has a larger RAM footprint and of course the iPhone 5S throttles its SoC under sustained load - many smartphones do considering their low thermal headroom. The Nexus 4 (which I have) was notorious for overheating and down-clocking its SoC, and putting it in a freezer for a benchmark run would sometimes get me a 15% boost.
Anyone want to talk about how the A7 is such a beast that Apple managed to leapfrog every other ARM vendor in one shot? Or how Apple managed to increase battery life over the iPad 4 while reducing battery capacity massively to accommodate the much thinner form factor?
maxxcool wrote:I $%^&ing hate apple.. i wish they would die in a fire... get attacked by sex crazied squirrels while tumbling in a giant drier filled with broken glass and their own fetid feces.
tipoo wrote:For the last part, I most certainly did praise the A7 when it came out. It's an amazing chip for now. It doesn't however make the rest of the product completely immune to criticism.
As for the bolded, that's exactly my point, the Nexus 4 was harped on pretty badly for throttling, the iPhone 5S drops to 75% its max clock and no one mentions it.
Beelzebubba9 wrote:maxxcool wrote:I $%^&ing hate apple.. i wish they would die in a fire... get attacked by sex crazied squirrels while tumbling in a giant drier filled with broken glass and their own fetid feces.
Why? It always weirds me out when people have such strong feelings for a company because they've anthropomorphized the brand to such a degree their notions are no longer grounded in reality, but tied to a fabricated image they've invented. It's crazy talk.
If an iPhone stole your girl, then I take that all back of course.
tipoo wrote:A lot of disgruntled iPad 1 owners will tell you lack of RAM is it's achilles heel, wonder if this will hurt it.
JohnC wrote:tipoo wrote:A lot of disgruntled iPad 1 owners will tell you lack of RAM is it's achilles heel, wonder if this will hurt it.
I am an iPad "4" owner and I can tell you the same thing. All it takes is to play a single game (like Clash of Clans) and then leave it in "background" without manually unloading it - this immediately causes other "background" apps like Safari to "reload" all of the content.
sschaem wrote:Simply ask yourself.. why would Apple use a 64bit processor on system with 1GB.
Why would they incur a ~25% dram penalty knowingly.
If the only answer you come up with is "Apple is just stupid", try again.
DreadCthulhu wrote:The reason Apple won't pony up the extra $5 for another gig of RAM isn't because they are stupid; it is because they will sell 40 to 50 million iDevices a quarter, and that $5 dollars could easily add up to a billion a year in Apple's pockets. As far as I can tell, the average iPhone & iPad users barely does any sort of multitasking; you would be surprised at the number of people who don't get the point of tabbed browsing, for instance (not just on the iPad/iPhone, but on other tablets, phones, and PCs). So the extra RAM wouldn't improve the user experience for a large chunk of Apple's customers, thus Apple would rather have the extra money to build their spaceship.
tipoo wrote:Yup, even with nothing else running, if you just go back to dashboard for a second it will unload the game. If you are running other things too, it will push everything out of RAM.
sschaem wrote:Simply ask yourself.. why would Apple use a 64bit processor on system with 1GB.
Why would they incur a ~25% dram penalty knowingly.
maxxcool wrote:^^ this. it is very smart on their part. most people do not actively multitask, aka switch app, do something, 15 seconds later switch app do something else, switch back, launch a new app and to 3 things in the span of 5 minutes going back to a archived app every minute. And if they are it's limited like for navigation to the middle of a lake then searching for swim lessons oh the way to a out of office meeting.
sschaem wrote:Food for thought. the A7 run 32bit app naively... The A7 is a multipackage chip and include the dram...
64bit is more then pointer size, and apple took the opportunity to tweak the overall architecture.
http://www.mikeash.com/pyblog/friday-qa ... d-you.html
And of course, the title of this thread is incorrect. "64bit app, on 64bit ios, take ~25% more ram but run faster and more efficiently"