Diffrence between HT and Dual Core

[girishr]

Hi,

What is the deffrence between Hyperthread technology and Dual Core Technology.

regards

Girish

[TimP]

http://en.wikipedia.org/wiki/Hyper-threading
http://en.wikipedia.org/wiki/Multi-core_(computing)

[jarnell]

Is it correct that with Hyper-Threading the processor itself can decide to switch threads?

ie when one thread is "stalled" waiting for something, it can switch execution to another thread

On Multi-Core (Core 2 Duo/Quad) does the OS control thread/task switching?

[TimP]

In either case, it depends on a multi-processing OS. In fact, HT is more dependent on the OS to minimize the resources consumed by a spin-locked thread. For example, HT was the downfall of Windows 2000.