The Pentium III Hits 1 GHz
The Pentium III Coppermine was the first commercial x86 processor from Intel to attain a clock speed of 1 GHz; a 1.13 GHz version was even released, but was quickly taken off the market because it was unstable. This new version of the Pentium III improved the Level 2 cache—now on-die. It was faster than the 512 KB external cache on the first model and was touted as a feature able to speed up the Internet experience. It was released in three versions: server (Xeon), entry-level (Celeron), and mobile (with the first version of SpeedStep).
|Data bus||64 bits|
|Address bus||32 bits|
|Maximum memory||4 GB|
|L1 cache||16 KB + 16 KB|
|L2 cache||internal, 256 KB (CPU frequency)|
|Clock frequency||500–1,133 MHz|
|Fabrication process||180 nm|
|Number of transistors||28.1 million|
|Power consumption||25-35 W|
|Voltage||1.6 V, 1.8 V|
|Die surface area||106 mm²|
|Connector||Slot 1-Socket 370 FCPGA|
A slightly improved version (Tualatin), with more L2 cache (512 KB) and centering on a 130 nm process, was released in 2002. Essentially intended for servers (PIII-S) and mobile devices, it was less common in consumer-level machines.