Intel Celeron D: The Intel family of Celeron D processors were initially launched June 25, 2004 and featured double the L1 cache (16 KB) and L2 cache (256 KB) of previous desktop Celerons. The Celeron D was manufactured for Socket 478 and LGA 775, with 3x0 and 3x5 designations from 310 through to 355 at clock speeds of 2.13 GHz to 3.33 GHz. The Intel Celeron D processor works with the Intel 845 and 865 chipset families. The D suffix actually has no official designation, and does not indicate that these models are dual-core. It is used simply to distinguish this line of Celeron from the previous Celeron processors. The Celeron D is a single core processor.