[lug] Atom Based Computers

[Zan Lynx]

On 7/12/2010 1:22 PM, Stephen Queen wrote:

> This strikes me as curious. I would think that a processor running at 1
> GHz or better would compile fairly quickly. I figured that the atom was
> not as fast at the Pentium, but I didn't think it was a dog.  Any Idea
> why it compiles so slow?

The Atom is minus a lot of features that have been added to chips over 
the years.

I believe it is missing:
- speculative execution
- pipeline reordering
- pipeline multiple command issue
- advanced branch prediction

All of that costs more watts and so it isn't there.