Get out of my cache
Penryn will be even more optimized
for mobile computing and as the chip has been designed for mobile
computing it will be even better on your battery than Merom, the current
Core 2 Duo. First of all we are talking about 45 nanometre part and
David Perlmuter aka Dadi the Exectuive VP or Intel's mobile group said
that Penryn will be able to work wit even lower voltages and that the
clock will be able to drop even higher.
If the machine gets to idle mode Intel
will try to shut down most of the cache and therefore save as much
power as possible. The CPU will drop the clock even deeper and we can
expect some few hundred MHz clocks if the machine is not doing some
tough job.
The CPU needs to empty the cache first
before shutting it down, and we are sure that this can't be that
good for the performance. I guess that Intel has found the way
quickly increase the clock speed and fill the cache if necessary but
according to a few engineers we talked to there wont be much better
battery life between Penryn and Merom based machines.
This is what the new power state looks
like.
Cache on when plugged
Cache off to save the battery
