Mobile Penryn will end up with the Core 2 Duo T9500 brand and it is set to be announced in January 2008. The fastest iteration at launch will work at an impressive 2.6GHz and will come with 6MB of cache memory, all wrapped around an 800MHz FSB.
The CPU uses socket FCPGA8, also known as Socket P, and it will work with 0.7 to 1.3V. This is just half a Volt better than the previous core and to tell you the truth we expected a bit more.
There will be three more Penryn based 45 nanometre mobile CPUs at launch and two of them will be launched with only 3MB cache.