Cyrix, founded in 1988, initially focused on developing high-performance math coprocessors for 286 and 386 microprocessors. The company gained prominence during the Intel Pentium era, producing ...

However, it was also compatible with AMD's K5 CPUs, the Cyrix 6x86 line (also co-branded with IBM), and IDT's WinChip series. This made it one of the rare sockets to offer cross-brand compatibility.