Hardware Reference
In-Depth Information
Because Intel has offered Celeron and Celeron D processors in many distinctive variations, it's easy
to get confused as to which is which, or which is available at a specific speed. By identifying the
spec number of a particular chip and looking up the number on the Intel product information website
(
http://ark.intel.com/Default.aspx
), you can find out the exact specification, including socket type,
voltage, stepping, cache size, and other information. If you don't know the spec number, you can still
look up the processor by the model number or by the code name (such as Sandy Bridge), or you can
use software such as CPU-Z (
www.cpuid.com
) to find more detailed information about an installed
processor.
Intel Pentium 4 Processors
The Pentium 4 was introduced in November 2000 and represented a new generation in processors
(see
Figure 3.31
)
. If this one had a number instead of a name, it might be called the 786 because it
represents a generation beyond the previous 686 class processors. Several variations on the Pentium
4 have been released, based on the processor die and architecture. Several of the processor dies are
shown in
Figure 3.32
.
Figure 3.31. Pentium 4 FC-PGA2 processor.
Figure 3.32. The CPU dies for the Pentium 4 CPU based on the Willamette, Northwood, and
Prescott cores.
The main technical details for the Pentium 4 include the following:
• Speeds ranging from 1.3GHz to 3.8GHz.
