发信人: alone (我入地狱), 信区: Hardware
标 题: Athlon Platform History: Sockel A, Then and Now
发信站: 荔园晨风BBS站 (Thu Mar 6 13:00:42 2003), 站内信件
It's a success story like no other. After four years of competition
between Intel and AMD, the small Texas-based chip manufacturer was
able to cast a shadow of doubt on Intel's dominance with its own
Athlon processor. And this has been the case till now.
In those days, fast versions of the Athlon, Slot A versions followed
each other in quick succession. 700, 800, 900 MHz - and, as a matter
of fact, Intel reached the magic 1 GHz number only shortly after AMD.
What a disgrace for the market leader! To make matters worse, AMD
attained its goal with a CPU that was based on an external cache unit.
Intel, by contrast, launched the Pentium III Coppermine at an early date
and initially integrated the L2 cache on the die.
The pressure on Intel was so immense that a Pentium III with 1.13 GHz
was hastily introduced to the market. This processor had only one
purpose: to win back the performance crown. At the time, Tom's
Hardware played an important role in revealing processing errors in
the 1.13 GHz model; and, as a result, this model was quickly recalled.
From then on, Intel began concentrating on the Pentium 4, which was to
keep the Athlon in its place with higher clock speeds. As a reaction
to this increase in clock speed, AMD could only counter by giving its
Athlon XP (Palomino core) a "P" rating, as was already known in the days
of the 486. An Athlon XP 2000+, for example, can run about as fast as a
Pentium 4 with 2 GHz, but it only requires 1.66 GHz.
In order to close in on the 2 GHz limit and keep up with the Pentium 4
models, AMD developed the Thoroughbred core with 0.13 micron. However,
it was soon updated with the Thoroughbred B, which acts as the basis for
today's Athlon XP models over 2200+, and which increased the FSB from
266 to 333 MHz.
Today, the Barton processors are on the shelves. What it has to offer is
512 KB of integrated cache. Together with fast platforms (NVIDIA
nForce2, VIA KT400A), AMD can once again increase the performance
level and continue to make life uncomfortable for Intel.
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