I am using NetBSD i386 on my desktop. Just want to cross check whether my processor is 64bit and whether I could use 64 bit system instead of 32 bit.
dmesg describes the processor as follows: cpu0 at mainbus0 apid 0: Intel(R) Pentium(R) D CPU 3.00GHz, id 0xf65 cpu1 at mainbus0 apid 1: Intel(R) Pentium(R) D CPU 3.00GHz, id 0xf65 1. Is there any way (either some system information command or manufacturer web page) that can confirm whether above is a 64 bit processor or not? I tried on intel site, though searching by above id (0xf65) didn't help much. Wikipedia describes this as a 64 bit processor, though since there is no exact processor Id I am not sure whether to rely on this page: http://en.wikipedia.org/wiki/Pentium_D 2. Which sets shall I use for an Intel 64 bit processor - amd64? A bit worried since wikipedia page below says there are differences between amd64 and intel 64 http://en.wikipedia.org/wiki/Intel_64#Intel_64 3. Is there any perceivable performance gain on a 64 bit processor, with 64 bit system as against 32 bit system? (I'd like to give it a try irrespective of that, though just thought of asking.) Mayuresh.
