Intel Core is a new platform umbrella intended to replace the
Pentium M brand. It is part of a major rebranding effort by Intel
starting January 2006.
Intel Core Duo consists of two cores based on the Banias/Dothan
microarchitecture, a 2MB L2 cache shared by both cores, and an
arbiter bus that controls both L2 cache and FSB access. Floating
point performance has been improved through the addition of SSE3
instructions and improvements to SSE and SSE2 implementations,
while integer performance decreased slightly due to higher latency
cache. Intel Core also includes Vanderpool (VT) virtualization
technology and the ability to disable one core to conserve power.
EM64T (Intel x86-64 extensions) will not be available in
Yonah.
Intel Core Solo is a scaled down version of Core Duo with one
core.
for more info, pls refer to wiki