Template:mpu The Duron 1800 based on the Applebred core was a 32-bit x86 microprocessor developed by AMD and introduced in mid-2003. This model was part of the third generation of the Duron family. Designed based on AMD's K7 and manufactured using their newer 130 nm process, this MPU operated at 1800 MHz with a bus capable of 266 MT/s with a max TDP of 57 W and a typical TDP of 53 W.