
430FX "Triton" - 16 MB/s DMA IDE, PCI 2.0, FPM/EDO DRAM, and pipeline burst synchronous cache options.
Some boards use IDE controller chips with known bugs, like CMD640.
430NX "Neptune" - SMP, PCI 2.0, FPM DRAM, Asynchronous cache. Some with OPTi chipsets have VLB slots as well, and some have onboard audio or video. Socket 5 motherboards are built to the AT specification, and typically use PCI and ISA slots. There are also several Intel Pentium Overdrive CPUs that were produced to match Socket 5 options to later Socket 7 CPU clock speeds. The Centaur/IDT Winchip and the AMD K5 are perhaps most well known. There are several CPUs from companies other than Intel available for Socket 5. This was a die shrink revision of the Pentium and operated at 75-120MHz with a bus speed of 50MHz, 60MHz or 66MHz. Socket 5 was developed for the Pentium "P54C" CPU that operated at 3.3v instead of the original P5's 5.0v.