Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I'm thinking if it's possible to use a 64bit ubuntu on a dual cpu architecture ?

How can i tell from /proc/cpuinfo ?

processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 15
model name  : Intel(R) Core(TM)2 Duo CPU     T5870  @ 2.00GHz
stepping    : 13
cpu MHz     : 800.000
cache size  : 2048 KB
physical id : 0
siblings    : 2
core id     : 0
cpu cores   : 2
apicid      : 0
initial apicid  : 0
fdiv_bug    : no
hlt_bug     : no
f00f_bug    : no
coma_bug    : no
fpu     : yes
fpu_exception   : yes
cpuid level : 10
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida dts
bogomips    : 3991.23
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor   : 1
vendor_id   : GenuineIntel
cpu family  : 6
model       : 15
model name  : Intel(R) Core(TM)2 Duo CPU     T5870  @ 2.00GHz
stepping    : 13
cpu MHz     : 800.000
cache size  : 2048 KB
physical id : 0
siblings    : 2
core id     : 1
cpu cores   : 2
apicid      : 1
initial apicid  : 1
fdiv_bug    : no
hlt_bug     : no
f00f_bug    : no
coma_bug    : no
fpu     : yes
fpu_exception   : yes
cpuid level : 10
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida dts
bogomips    : 3991.25
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:
share|improve this question
    
The manufacturer's specifications are the best way of finding out if the CPU is 32bit or 64bit. I have just looked up your CPU on the Intel web site. –  grahammechanical Nov 29 '11 at 14:25

3 Answers 3

up vote 1 down vote accepted

You should Install 64 bit version of Ubuntu for Better Performance Intel® Core™2 Duo Processor T5870 (2M Cache, 2.00 GHz, 800 MHz FSB) (check this Intel Web)

because u got Instruction Set 64-bit

share|improve this answer

Multi-processor support does not depend on the word size (ie, 32- or 64-bit) of the Ubuntu install. You should be able to install either 32- or 64-bit Ubuntu on this machine, and have dual-core support work fine.

share|improve this answer

almost all intel processors support 64 bit (lolzz). I have the same cpu and have installed 64 bit ubuntu 13.10. Works smooth as cheese. Don't worry, install the 64 bit version.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.