2x64 Bit none dual or 64 bit dual?

[Amo85]

Hey,

Im going to install ubuntu (32bit 64 bit would not work :S) on my server with:

2x3,06 Ghz 64 bit Xeon.

But what is best having, 2 CPU 64 bit not dual or just one 64 bit dual core CPU? or is there a way to get 64 bit centos installed on to 64 bit cpu's thats not is dual?

[BehaartesEtwas]

I don't know any recent single core cpu, so your 2 single core solution would be based on old and slower Xeons. Take the dual core! (Technically Linux does not really distinguish between separate cpus and cores, apart from an improved cache handling for cpus that share the cache between the cores; that would only lead to a slightly improved performance over separate cpus.)
And btw: I wouldn't recommend centos for game servers. Use debian instead.

[jpcaissy]

I'd go for the dual CPUs. I always find it funny people saying that dual core is like having, for instance, 2x2.4 ghz. Sure, but they all share the same bus, thus information doesn't come in faster.
So from past experience, go with the dual CPU.

And I don't see the problem with installing 64bit's version of centos whether you are using dual core or dual cpu. Works like a charm if you know what your doing. Keep in mind that centos needs a bit more work than ubuntu which almost works out of the box

[BehaartesEtwas]

jpcaissy Wrote:I'd go for the dual CPUs. I always find it funny people saying that dual core is like having, for instance, 2x2.4 ghz. Sure, but they all share the same bus, thus information doesn't come in faster.
So from past experience, go with the dual CPU.

two cpus also share one bus! at least the intel multi-core cpus share the internal cache, which is an advantage that is not possible with separate cpus.
your "past experience" might just be out-dated. tell me one single-core cpu that gets even close to the performance of one core of an E8400. if you take two separate cpus you will have an out-dated system. the last single-core xeon was introduced over 3 years ago.