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-   -   Is Ubuntu 12.04 LTS 64 bit available for Intel also ? (http://www.linuxquestions.org/questions/ubuntu-63/is-ubuntu-12-04-lts-64-bit-available-for-intel-also-949121/)

Rohit_4739 06-07-2012 09:21 PM

Is Ubuntu 12.04 LTS 64 bit available for Intel also ?
 
Hello Guys,

Well i am very much new to Ubuntu, infact i am just going to download it and start using it. However i could not find any 64 release for intel architecture, its only for amd only.

So my question is there any release for intel 64 bit also, if no then would that 64bit amd release work on Intel ? Because if that would not work then i have no choice but to download 32 bit for Intel.

Please suggest.

Thanks,
Rohit

tommcd 06-08-2012 01:53 AM

The 64 bit Ubuntu, and the 64 bit versions of any Linux distro, will work just fine with any 64 bit processor, whether it is AMD or Intel.
I currently have 64 bit Lubuntu and 64 bit Slackware installed on both a laptop with an Intel CPU and a home made desktop with an AMD CPU. Although the Ubuntu download page continues to recommend the 32 bit Ubuntu, the 64 bit Ubuntu is quite mature and should be used on a 64 bit capable system, especially if you have 4GB or more of memory.

craigevil 06-08-2012 02:08 AM

x86-64 - Wikipedia, the free encyclopedia - https://en.wikipedia.org/wiki/Amd64

syg00 06-08-2012 03:09 AM

Whilst that wikipedia article is technically useful, perhaps the OP is looking for something more along these lines.

Rohit_4739 06-08-2012 10:49 AM

Hi Everyone,

Thanks a lot for your replies, all are really helpful. Just one last question, i was just digging into the Hardware supported by 32 bit Ubuntu and i found it can actually support upto 64G of RAM. So is it true that 32 bit Ubuntu can support more than 3G of RAM because as far as i know 32 bit MS OS do not support more than 3G RAM.

Thanks,
Rohit

tommcd 06-08-2012 11:09 AM

If you install the PAE kernel then 32 bit Ubuntu can access more than 4GB of memory. However, the extra memory will not be as effectively utilized as it would be on a 64 bit system. See this:
https://help.ubuntu.com/community/32bit_and_64bit
http://askubuntu.com/questions/60155...-improve-speed
If you install 32 bit Ubuntu with 4GB or more of memory, I think it may add the PAE kernel automatically. If not, you could install it yourself:
http://packages.ubuntu.com/precise/l...23-generic-pae
Then be sure to run: sudo update-grub for the new kernel to be added to your /boot/grub/grub.cfg file.

syg00 06-08-2012 06:47 PM

Technically the motherboard enables (up to) 64 Gig with PAE. The operating system can choose to support it - of course Linux did years ago.
Note that each (userspace) address space is still limited to 4 Gig.

Using a 64-bit operating system is almost always the better option.

cascade9 06-09-2012 06:14 AM

Quote:

Originally Posted by Rohit_4739 (Post 4698871)
because as far as i know 32 bit MS OS do not support more than 3G RAM.

Some of them do, just not the microsoft OSes made for 'desktop' use.

http://msdn.microsoft.com/en-us/libr...=vs.85%29.aspx

nspatt 06-19-2012 10:39 AM

The 4GB Calculation
 
@Rohit - with due respect, I thought I would share what I learnt.
The usual 4GB for 32 bit CPU comes from the fact that 2**32=2**10 . 2**10 . 2**10 . 2**2 =1K . 1K . 1K . 4 = 4GB.
So ideally 64 bit can go much higher to the extent of 2**64.
For 32 bit, this 4 GB has been extended through PAE(Physical address Extension).
BTW, MS 32 bit supports 4GB under normal setup.
Hope this clears.


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