
17-10
x86 MICROPROCESSORS
duo or Core2 quad, based on the quantum of performance we want. Both of them have
the same ‘Core2’ microarchitecture, but the quad-core version delivers higher perfor-
mance, though with a higher power dissipation factor.
17.9 | Nehalem Microarchitecture
The next major architectural change came with the release of the ‘Nehalem’ microarchi-
tecture in 2008. Nehalem chips are multicore ‘chip multiprocessors’ with some major
architectural enhancements, which necessitate more discussion about it.
The first and foremost change is that Nehalem incorporated an integrated memory
controller, i.e., the memory controller is brought ...