K8, K8L. Whats the difference?

[NathanE]

Dual core chips do make a difference in XP it is a multi threaded operating system, m$ has been making windows multithreaded since the days of NT 3.51

Did I say otherwise? Reread the question and my answer We were talking specifically about how the OS distinquishes between physical and logical cores. In XP, there is no distinction of the cores on a multi-core chip. On Vista there is.

 

[marms]

There's a bit of info on the new K8L HERE it looks like it's getting quite a lot of improvements.

 

[Boogle]

the standard version of XP only supports 2 real CPUs, I know this because I have a friend who bought himself 2 dual core opterons to find that XP would not support them, m$ do not openly sell XP that supports more than 2 cores, they only sell that version to special OEMs and clients I belive

Install SP2. MS licensing dictates up two 2 sockets for XP Pro. That means the OS will work fine with 2 16-core processors. More than that the kernel can't physically support.

 

[NathanE]

Install SP2. MS licensing dictates up two 2 sockets for XP Pro. That means the OS will work fine with 2 16-core processors. More than that the kernel can't physically support.

Nope, there's a 4-core logical limit. So either 2x dual-core or 1x quad core will take the XP Pro license to its limit.