The Intel Celeron processor 400 sequence is a desktop processor that combines the performance of the previous generation of Desktop products with the power efficiencies of a low-power microarchitecture to enable smaller, quieter systems. Intel Celeron Processor 400 is a 64-bit processor that maintain compatibility with IA-32 software.

Based on 65 nm process technology, the Intel Celeron processor 400 sequence is a single-core processor that features an 800 MHz front side bus (FSB), 1 MB or 512 KB L2 cache, and a thermal design power (TDP) of 35 W. The processor also supports the Execute Disable Bit and Intel 64 architecture.