Weitek

thumb|180px|right|Weitek 4167 for i486-based computers right|thumb|180px|Architecture of Weitek's WTL 1167thumb|180px|Weitek SPARC Power μP thumb|180px|right|Weitek Power9100 Weitek Corporation was an American chip-design company that originally focused on floating-point units for a number of commercial CPU designs. During the early to mid-1980s, Weitek designs could be found powering a number of high-end designs and parallel-processing supercomputers.

Weitek started in 1981, when several Intel engineers left to form their own company. Weitek developed math coprocessors for several systems, including those based on the Motorola 68000 family, the WTL 1064 and 1164, and for Intel-based i286 systems, the WTL 1067. The 1067 was physically implemented as three chips, the WTL 1163, 1164 and 1165. When Intel's own FPU design for the i386 fell far behind in development, Weitek delivered the 1167 for them in the form of a daughtercard. Improvements in chip manufacturing allowed this to be reduced to a single-chip version, the WTL 2167. The WTL 3167 of 1988, also known as the Abacus, extended the system for use in Intel 80386 systems, and finally the WTL 4167 in 1989 for the Intel 80486 which used the 486's larger socket format and ran at higher clock rates than the 3167 to provide higher performance of around 4 MFLOPS for single precision.