The VIA C3 reference article from the English Wikipedia on 24-Apr-2004
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VIA C3

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The VIA C3 is an x86 central processing unit for personal computers. It is made by a Taiwanese company, VIA. Although the predecessor to the VIA C3 was called the "VIA Cyrix III" it and the VIA C3 are based on the CPU design technology of Centaur Technology, makers of the WinChip C6. VIA bought Centaur from IDT.

As of March 2004 the fastest edition currently available works at the speed of 1.4 GHz with a 133 MHz front side bus on a Socket 370 motherboard or factory soldered EBGA on mini-itx mainboards. Both fanless and fan-cooled versions are available at 1GHz.

While being much slower than x86 CPUs being sold by AMD and Intel, it has special niche qualities which make it attractive to some buyers:

According to VIA, the VIA C3 was to be superseded in 2003 by the VIA C4 - a clone of the design of the Intel Pentium 4 processor. Such a processor has not appeared as of March 2004, however. Instead VIA has released newer processors under the C3 naming but with internal version names of C5B (Samuel2), C5C(Ezra), C5N (Ezra-T), C5XL (Nehemiah) and C5P (Nehemiah) all of which are still limited to 1Ghz, despite the VIA roadmap predicting 3Ghz by Q4 2003.