"The original Duron, codenamed "Spitfire," is the chip
I discuss in the paragraph above. A lot of the information there
holds true with the new Duron, codenamed "Morgan." However, AMD
made several architectural changes to the Duron, which while not
revolutionary increases, do help performance.
The differences between the Morgan and the Spitfire core Durons
are as important as the changes between the Thunderbird and the
Palomino. First, the Morgan core supports new processor
technologies, such as SSE (which AMD calls 3DNow! Professional),
which is Intel's on-chip solution targeted at increasing
3D/floating point performance. This means that all software looking
for SSE instructions that an Intel chip has will also find them and
use them on the Morgan core Durons and Palomino core Athlons.
The other significant change is also present on the new Palomino
Athlons, as well as all versions of the Intel Pentium IV. This
feature is hardware data pre-fetch. Essentially, what hardware
pre-fetch does is similar to how the cache mechanisms on a hard
disk work -- the CPU uses an algorithm to try to figure out what
data a program will need next, and place that data is in the CPU
cache. In certain operations, where data is linear, this can really
help increase performance. Such operations would be something like
a database, where data might be pulled in sequential order from
memory, and therefore easy to predict what will be needed
Some of the products that appear on this site are from companies from which QuinStreet receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. QuinStreet does not include all companies or all types of products available in the marketplace.