In article <3e2d4942@news.povray.org> , Warp <war### [at] tagpovrayorg>  wrote:

>> They clearly say in the text that the Athlon 64 is a development version
>> clocked only at 1.2 GHz while AMD will ship with 2 GHz.  So you have to
>> multiply all (POV-Ray) results by 1.6 and not jump to conclusions based on
>> raw numbers without knowing the context!
>
>   I'm sure you know that doubling the CPU clock rate does not double the
> speed of programs (not even if they are very CPU-intensive), so a factor
> of 1.6 may be way too optimistic.

Of course, there is already some bias in my estimate; it would be 1.6666 if
there was a linear scale.  However, with the 3.1 test scene chess2.pov they
use most work takes place in the cache and it does indeed scale almost
linearly.

    Thorsten


____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message