Celeron Tualatin was based on Pentium III Tualatin core and had no more than 44 million transistors. This increase on the number of transistors is due to the architecture technology used on Celeron Tualatin, which was of 0.13 µm (Celeron III used a 0.25 µm technology). There was an increase on L2 cache, which had 256 KB in this version.

Intel made Celeron Tualatin available for socket 370 on versions ranging from 900 MHz to 1.4 GHz. All these versions of Celeron Tualatin work externally at 100 MHz.

Celeron Tualatin used a new kind of chip package called FC-PGA2, which is different from FC-PGA because of its metallic plate on top of the processor. This metallic plate allows a better heat transference between the processor and the heatsink. This metallic plate also protects the processor core from possible damages that could happen during the cooler installation.

Figure 6: Celeron Tualatin with FC-PGA2 packaging.

In spite of the fact that Celeron Tualatin is a socket 370 processor, it cannot be installed on an old socket 370 motherboard. This is because Tualatin core redefined some 370 socket pins, which makes Celeron Tualatin incompatible for old motherboards. Thus, before buying a motherboard for your Celeron Tualatin, be sure that it is compatible with Tualatin core.

Main features of Celeron Tualatin were:

• Based on Pentium III with Tualatin core
• Manufacturing process: 0.13 μm
• L1 cache: 32 KB total, 16 KB for instructions and 16 KB for data
• L2 cache: 256 KB
• External clock rate: 100 MHz
• Packaging: FC-PGA2
• Socket: Socket 370
• SSE instructions

Available models of Celeron Tualatin are listed on the chart below. TDP stands for Thermal Design Power and indicates the CPU maximum thermal dissipation.