-   Linux - Hardware (
-   -   pentium 4, i686 or i586 (

fatrandy13 06-12-2005 09:11 PM

pentium 4, i686 or i586
hi, i have a pentium 4 2.8 ghz processor with hyperthreading. i was just wondering how to tell whether it is an i686 or an i586. it's a dell dimension 4600. thanks

musicman_ace 06-12-2005 09:23 PM

Its an i686. The 586 was the Pentium Pro if I remember correctly.

Electro 06-13-2005 04:09 AM

No, Pentium 4 is an i786 or an 80786 to be more precise. It can run instruction models down to 80386. As with all Intel processors, they get a performance penatly when not running its own instruction model. AMD processors does not have this flaw.

A Pentium Pro is an i686.

fatrandy13 06-13-2005 06:45 AM

oh thanks

liquidtenmilion 06-13-2005 01:21 PM

anything pre pentium PRO(including Pentium MMX) is a 586(486,386).

Everything after pentium PRO is a 686(pentium 2, 3, 4, athlon k7, such as XP, duron and sempron). Pentium 4 is 686 too, as i786 doesn't even exist, and even if it did, GCC can't compile code optimized for this "i786"

Electro 06-13-2005 06:38 PM

A i786 does exist. Its a Pentium 4. GCC has option for march. Just specify pentium4. Also the kernel has it too.

All times are GMT -5. The time now is 06:59 AM.