So either I missed something somewhere or most likely just dont comprehend it. But with the new intel core i5 or some i7's with the integrated graphics on the same die, how many cores are there actually? since one core is the graphics..
So does this mean a quad core is actually 3 core cpu 1 core gpu.. or is it still 4 core cpu, 1 gpu making it a 5 core?
None of the currently available Intel CPUs have graphics on die. That is planned, but currently unavailable. From what I can tell, i5 CPUs are those which have 4 threads. This means they are either 4 cores without SMT (1 thread per core) or dual cores with SMT (2 threads per core). Currently, the i5-750 is the only i5 available, and it is a quad core without SMT.
i3, i5 and i7 are replacing Celeron, Pentium and C2D/C2Q. Basically i3 are entry level CPUs, i5 are mainstream parts and i7 performance/enthusiast. It's more about 'branding' than how many cores or threads.