On Mon, 11 Sep 2006, Pete Holsberg wrote:
Intel? Pentium? 4 (1)
Intel? Pentium? D Dual-Core (3)
Intel? Core? 2 Duo (2)
Since the Pentium 4 is not a Dual-Core I'll leave it out.
Here is a chart that compares the Core 2 Duo, and two Ds (65
and 90 nanometer technology). I picked the fastest processor
from each group.
<http://indigo.intel.com/compare_cpu/showchart.aspx?mmID=884351,878541,868125&familyID=1&culture=en-US>
Some of the differences are the D has an L2 cache for each core
while the Core 2 Duo has a shared L2 cache. Also the FSB is
faster on the Core 2 Duo. The older D is based on 90 nm
technology, which uses more watts (and heat). The D is 8th
generation and uses the NetBurst microarchitecture. The Core 2
Duo is 9th generation and uses the new Intel Core
Microarchitecture. You'll notice the Core 2 Duo has a slower
clock speed, but they have faster benchmarks than the Ds.
Here is an article describing the Core 2 Duo and some of the
differences between it and the older generation D and M.
-----------------------------
<http://en.wikipedia.org/wiki/Core_2_Duo>
Core 2 is a ninth-generation x86 architecture microprocessor
produced by Intel based on an all-new CPU architecture called
the Intel Core Microarchitecture, which is the successor of
NetBurst microarchitecture that has powered most Intel
processors since 2000. Core 2 also marks the retirement of
Intel's Pentium brand name that has been used from 1993 and the
reunion of Intel's notebook and desktop product lines since
Pentium M was released apart from Pentium 4 in 2003.
The first wave of Core 2 processors was officially released on
July 27, 2006. Like the Intel Core processors that they
supersede, the Core 2 brand is subdivided into Solo (single
core) and Duo (dual core) models, plus an Extreme designation
carried over from the Pentium Extreme Edition. The first
generation of Core 2 products all have been dual core, with
future plans for single and quad core varieties.
Unlike NetBurst-based processors, such as the Pentium 4 and
Pentium D, Core 2 does not stress designs based on extremely
high clock speeds but rather improvements on other CPU
features, including cache efficiency and number of cores. The
power consumption of these processors is much lower than the
Pentium desktop line of products. With a TDP of only 65W, Core
2 has the lowest power consumption of any desktop chip this
generation, including both Prescott's TDP of 130W and San
Diego's TDP of 89W.
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