How many cores does xp support

Dicehunter · 25 Feb 2008 at 15:22

Same as title, reason i ask is i have supreme commander and was just wondering if xp will utilise the cores.

Muffin` · 25 Feb 2008 at 15:29

xp pro = two proccessers, no limit on cores?

Burnsy2023 · 25 Feb 2008 at 15:37

Muffin` said:
xp pro = two proccessers, no limit on cores?

Yep.

As far as I know, XP will utilise all cores currently avaliable on the market (upto 8, possibly more)

Burnsy

Dicehunter · 25 Feb 2008 at 17:25

very cool, thx for the reply fellars

steve258 · 25 Feb 2008 at 17:27

yeah read about this on this forum before:

XP Home Edition - as many cores as you can fit in a single socket.
XP Professional - as many cores as you can fit in two sockets.

NathanE · 25 Feb 2008 at 19:04

Negatory I'm afraid.

XP Home - 1 physical, 2 logical
XP Pro - 2 physical, 4 logical

Logical means how many cores or virtual processors on that single physical chip. So a P4 with HT counts as a 2. Likewise does a C2D. But a C2Q counts as 4.

Read this in a whitepaper published by Microsoft a long time ago (pre SP2 I think) so it's possible they have changed their licensing policy since then.

steve258 · 25 Feb 2008 at 19:06

So how come my quad works perfectly on XP home edition..?

NathanE · 25 Feb 2008 at 19:19

Looks like my information is out of date then.

Bomag · 25 Feb 2008 at 19:21

SP2 changed the number of supported cores. I cannot remember to what but Steve258's answer sound familier.

NathanE · 25 Feb 2008 at 19:23

You may be right - there was a big announcement back in 2004 where Microsoft "clarified" it's multi core licensing policy. It looks like they may have sneaked in the changes to SP2.