|Feb 20, 2012, 01:48 AM||#1|
What is the point of a 64-bit chip only in ML?
I'm really just wondering here, given that 32-bit applications are here for a long time, what really is the point of limiting the ML OS to 64bit chips as there will still have to be backwards compatibility for a long time. Will it really make the machine faster? I understand the exclusion of GMA950 and X3100 integrated graphics GPUs as ML will likely support much higher graphics resolutions in the future, but the 64bit thing I just don't get. Please educate me.
iMac | MacBook | iPad | iPhone | Apple TV
5D Mark III | 24-105L | 100-400L | 50 f/1.4 | 50 f/2.8 Macro
|Feb 20, 2012, 03:16 AM||#2|
The idea is that they no longer have to allocate any of their engineering resources to optimize OS X for 32-bit chips as well. You can't simply recompile the OS from 32-bit to 64-bit operations or vis versa and expect it to be just as good.
Also, 64-bit CPUs have additional features that 32-bit CPUs can't use, now they can fully start to take full advantage of all 64-bit instruction sets without having to worry about the impact on the 32-bit CPUs.
|Feb 20, 2012, 03:25 AM||#3|
I would guess that it is a way to kick developers (especially driver writers) into coming into the present. Other than that, the only benefit I can see is that Apple gets to stop compiling a 32-bit kernel, which doesn't seem like that much of an overhead to me.
Of course, it could also be a way for Apple to sell more Macs, if people on old Core Duos want to upgrade to ML.
With Windows, it makes more sense, since 32-bit Win kernels can't run 64-bit apps. With Win 2008 Server R2, and Exchange 2007, it is 64-bit only.
32-bit OS X kernels CAN run 64-bit apps, so either it is money-related, development-related, or Apple is just trying to get everyone to the present.
2010 iMac 27" i5 16Gb - iPhone 3GS - Samsung Galaxy Nexus (don't hate!) Airport Extreme Base Station Airport Express
|Thread Tools||Search this Thread|
|thread||Thread Starter||Forum||Replies||Last Post|
|Woo hoo, Chip & PIN (EMV, Chip Cards, etc) FINALLY IN THE US, and WORKING||dontwalkhand||Community Discussion||48||Sep 4, 2014 04:34 PM|
|Qualcomm Employee: 64-Bit A7 Chip 'Hit Us In The Gut'||MacRumors||MacRumors.com News Discussion||329||Jan 16, 2014 03:15 PM|
|Qualcomm Marketing Executive Calls Apple's 64-Bit A7 Chip a 'Marketing Gimmick'||MacRumors||MacRumors.com News Discussion||403||Oct 27, 2013 07:59 PM|
|64-bit chip? (merged)||beosound3200||iPhone||70||Sep 14, 2013 01:22 PM|
|Intel Releases New Low-Power 64-bit 6-Watt Atom Chip For Servers||Middleman-77||Apple, Industry and Internet Discussion||2||Dec 18, 2012 03:26 PM|
All times are GMT -5. The time now is 04:32 PM.