HP Compaq 8100 Elite PCs with Intel Nehalem Microarchitecture

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Key Processor Features
The Intel Core i7, i5, and i3 processors have several key features to enhance system
performance. Most notable is the architecture has changed and they now include
an Integrated Memory Controller (IMC) making them monolithic processors. The
IMC and the multiple processor cores are connected by the new QuickPath
Interconnect (QPI).
Key Feature
Integrated Memory
Controller (IMC)
IMC offers high bandwidth and low latency for
memory I/O leading to faster memory read and write
cycles.
Hyper-Threading
Technology (HT)
Hyper-Threading technology allows one physical
processor core to be seen as two logical processors by
firmware and software. Each logical processor can
execute a thread allowing for two concurrent threads to
be executed.
Turbo Boost Technology A feature that automatically allows processor cores to
run faster than its base operating frequency when
other cores are not being utilized. Automatic
performance boost.
QuickPath Interconnect
(QPI)
A new high bandwidth, low latency bus that connects
processor cores and memory.
Figure 1: Key features of the Intel Core i7, i5, and i3 processors
Graphics
Certain Intel Core processors include an Integrated Graphics Device (IGD)
providing excellent graphical capabilities. For the Intel Core processor models that
do not have an IGD, a PCI Express (PCIe) interconnect is integrated into all
processors to support up to PCIe x16 video cards.
Previously, Intel Core 2 Duo and Core 2 Quad processors did not contain
embedded graphical devices. All IGDs were located in the Graphics and Memory
Controller Hub (GMCH) chipset.
Processor Integrated Graphics
Device
Core i3-5xx Yes
Core i5-6xx Yes
Core i5-7xx No
Core i7-8xx No
Pentium G6950 Yes
Figure 2: Integrated Graphic Device for Intel Core processors