Spartan 3E slower that Spartan 3?

ahhh... but Cyclone doesn't do bus lvds or have on chip terminators.


But in reality.. if you are after blazing speeds and are thinking cheap..
think again.. have you seen the price of the dual core X86 processors ???

Simon

"Paul Leventis" <paul.leventis@utoronto.ca> wrote in message
news:1114259390.945933.295800@f14g2000cwb.googlegroups.com...
> > If folks are looking for blazing speed, then I suggest they look at
> > Virtex 4.  The Spartan team is all about value (lowest cost).  If you
>
> > have already targeted a Spartan 3, and are moving to 3E because of
> the
> > IO vs CLB cost benefits, then I am sure the FAE's and tools are there
> to
> > support you.
>
> I doubt many people who need a low-cost device can afford a V4...
>
> If you want value AND blazing speed, I'd suggest taking a look at
> Altera's Cyclone/Cyclone II, which are 50-60% faster than Spartan-3
> (and thus 70-80% faster than Spartan-3E?  Eek).  But don't trust me.
> Download our Quartus II Web Edition and give things a whirl.
>
> As for Austin's story that Xilinx is guard-banding the timing models by
> a lot, I'm not sure why they need to do that.  What is the cause for
> the huge uncertainty?  They should know the process well and thus have
> good-quality transistor models and capacictance tables.  And the
> architecture really hasn't changed.  Shouldn't a good (<10% error)
> timing model be a piece of cake?
>
> See?  No hiding behind a fake address for me -- I have no qualms
> trolling as me.
>
> Paul Leventis
> Altera Corp.
>