Le 21/08/2018 à 05:26, dick balaska a écrit :
> I added a 2.8Ghz 6 core i5 to the farm this week.
> ( http://www.buckosoft.com/bsac/meta/ )
> $500 including a nice 23" HD monitor.
> 
> 
> I expected it to be slighty faster than my 3.4 Ghz i7 (4 core/8 thread)
> and 50% faster than my (3) 3.2Ghz 4 core i5s.
> 
> No.
> 
> It is 50% faster than my i7 and more than twice as fast as my other i5(s).
> 
> I'm not complaining ( :) ) but sheesh. Shouldn't intel call this an i6
> or something?  Clearly it is a newer/faster breed than the other boxes
> that have an i5.  It seems that intel is really underselling themselves
> here.
> 

Was this speed measured with povray benchmark ?
Same binary ?

What about the memory speed ? (and CL values)
Beware of the cache effect.

 From an old i7 measure (on i7-980X), thread without core are between 
20% and 25% of thread with core, when rendering with 3.7.

Not only the new generation is faster, it is also smaller and use less 
power. Yet no one wants to break the 4GHz barriers.
(but on the other hand, the new generation has a backdoor on the 
network, even in suspended state and it cannot be closed)

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